kolibrios/drivers/devman/acpica/tools/acpisrc/asremove.c

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/******************************************************************************
*
* Module Name: asremove - Source conversion - removal functions
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2011, 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.
*
*****************************************************************************/
#include "acpisrc.h"
/* Local prototypes */
void
AsRemoveStatement (
char *Buffer,
char *Keyword,
UINT32 Type);
/******************************************************************************
*
* FUNCTION: AsRemoveStatement
*
* DESCRIPTION: Remove all statements that contain the given keyword.
* Limitations: Removes text from the start of the line that
* contains the keyword to the next semicolon. Currently
* doesn't ignore comments.
*
******************************************************************************/
void
AsRemoveStatement (
char *Buffer,
char *Keyword,
UINT32 Type)
{
char *SubString;
char *SubBuffer;
int KeywordLength;
KeywordLength = strlen (Keyword);
SubBuffer = Buffer;
SubString = Buffer;
while (SubString)
{
SubString = strstr (SubBuffer, Keyword);
if (SubString)
{
SubBuffer = SubString;
if ((Type == REPLACE_WHOLE_WORD) &&
(!AsMatchExactWord (SubString, KeywordLength)))
{
SubBuffer++;
continue;
}
/* Find start of this line */
while (*SubString != '\n')
{
SubString--;
}
SubString++;
/* Find end of this statement */
SubBuffer = AsSkipPastChar (SubBuffer, ';');
if (!SubBuffer)
{
return;
}
/* Find end of this line */
SubBuffer = AsSkipPastChar (SubBuffer, '\n');
if (!SubBuffer)
{
return;
}
/* If next line is blank, remove it too */
if (*SubBuffer == '\n')
{
SubBuffer++;
}
/* Remove the lines */
SubBuffer = AsRemoveData (SubString, SubBuffer);
}
}
}
/******************************************************************************
*
* FUNCTION: AsRemoveConditionalCompile
*
* DESCRIPTION: Remove a "#ifdef" statement, and all text that it encompasses.
* Limitations: cannot handle nested ifdefs.
*
******************************************************************************/
void
AsRemoveConditionalCompile (
char *Buffer,
char *Keyword)
{
char *SubString;
char *SubBuffer;
char *IfPtr;
char *EndifPtr;
char *ElsePtr;
char *Comment;
int KeywordLength;
KeywordLength = strlen (Keyword);
SubBuffer = Buffer;
SubString = Buffer;
while (SubString)
{
SubBuffer = strstr (SubString, Keyword);
if (!SubBuffer)
{
return;
}
/*
* Check for translation escape string -- means to ignore
* blocks of code while replacing
*/
Comment = strstr (SubString, AS_START_IGNORE);
if ((Comment) &&
(Comment < SubBuffer))
{
SubString = strstr (Comment, AS_STOP_IGNORE);
if (!SubString)
{
return;
}
SubString += 3;
continue;
}
/* Check for ordinary comment */
Comment = strstr (SubString, "/*");
if ((Comment) &&
(Comment < SubBuffer))
{
SubString = strstr (Comment, "*/");
if (!SubString)
{
return;
}
SubString += 2;
continue;
}
SubString = SubBuffer;
if (!AsMatchExactWord (SubString, KeywordLength))
{
SubString++;
continue;
}
/* Find start of this line */
while (*SubString != '\n' && (SubString > Buffer))
{
SubString--;
}
SubString++;
/* Find the "#ifxxxx" */
IfPtr = strstr (SubString, "#if");
if (!IfPtr)
{
return;
}
if (IfPtr > SubBuffer)
{
/* Not the right #if */
SubString = SubBuffer + strlen (Keyword);
continue;
}
/* Find closing #endif or #else */
EndifPtr = strstr (SubBuffer, "#endif");
if (!EndifPtr)
{
/* There has to be an #endif */
return;
}
ElsePtr = strstr (SubBuffer, "#else");
if ((ElsePtr) &&
(EndifPtr > ElsePtr))
{
/* This #ifdef contains an #else clause */
/* Find end of this line */
SubBuffer = AsSkipPastChar (ElsePtr, '\n');
if (!SubBuffer)
{
return;
}
/* Remove the #ifdef .... #else code */
AsRemoveData (SubString, SubBuffer);
/* Next, we will remove the #endif statement */
EndifPtr = strstr (SubString, "#endif");
if (!EndifPtr)
{
/* There has to be an #endif */
return;
}
SubString = EndifPtr;
}
/* Remove the ... #endif part */
/* Find end of this line */
SubBuffer = AsSkipPastChar (EndifPtr, '\n');
if (!SubBuffer)
{
return;
}
/* Remove the lines */
SubBuffer = AsRemoveData (SubString, SubBuffer);
}
}
/******************************************************************************
*
* FUNCTION: AsRemoveMacro
*
* DESCRIPTION: Remove every line that contains the keyword. Does not
* skip comments.
*
******************************************************************************/
void
AsRemoveMacro (
char *Buffer,
char *Keyword)
{
char *SubString;
char *SubBuffer;
int NestLevel;
SubBuffer = Buffer;
SubString = Buffer;
while (SubString)
{
SubString = strstr (SubBuffer, Keyword);
if (SubString)
{
SubBuffer = SubString;
/* Find start of the macro parameters */
while (*SubString != '(')
{
SubString++;
}
SubString++;
/* Remove the macro name and opening paren */
SubString = AsRemoveData (SubBuffer, SubString);
NestLevel = 1;
while (*SubString)
{
if (*SubString == '(')
{
NestLevel++;
}
else if (*SubString == ')')
{
NestLevel--;
}
SubString++;
if (NestLevel == 0)
{
break;
}
}
/* Remove the closing paren */
SubBuffer = AsRemoveData (SubString-1, SubString);
}
}
}
/******************************************************************************
*
* FUNCTION: AsRemoveLine
*
* DESCRIPTION: Remove every line that contains the keyword. Does not
* skip comments.
*
******************************************************************************/
void
AsRemoveLine (
char *Buffer,
char *Keyword)
{
char *SubString;
char *SubBuffer;
SubBuffer = Buffer;
SubString = Buffer;
while (SubString)
{
SubString = strstr (SubBuffer, Keyword);
if (SubString)
{
SubBuffer = SubString;
/* Find start of this line */
while (*SubString != '\n')
{
SubString--;
}
SubString++;
/* Find end of this line */
SubBuffer = AsSkipPastChar (SubBuffer, '\n');
if (!SubBuffer)
{
return;
}
/* Remove the line */
SubBuffer = AsRemoveData (SubString, SubBuffer);
}
}
}
/******************************************************************************
*
* FUNCTION: AsReduceTypedefs
*
* DESCRIPTION: Eliminate certain typedefs
*
******************************************************************************/
void
AsReduceTypedefs (
char *Buffer,
char *Keyword)
{
char *SubString;
char *SubBuffer;
int NestLevel;
SubBuffer = Buffer;
SubString = Buffer;
while (SubString)
{
SubString = strstr (SubBuffer, Keyword);
if (SubString)
{
/* Remove the typedef itself */
SubBuffer = SubString + strlen ("typedef") + 1;
SubBuffer = AsRemoveData (SubString, SubBuffer);
/* Find the opening brace of the struct or union */
while (*SubString != '{')
{
SubString++;
}
SubString++;
/* Find the closing brace. Handles nested braces */
NestLevel = 1;
while (*SubString)
{
if (*SubString == '{')
{
NestLevel++;
}
else if (*SubString == '}')
{
NestLevel--;
}
SubString++;
if (NestLevel == 0)
{
break;
}
}
/* Remove an extra line feed if present */
if (!strncmp (SubString - 3, "\n\n", 2))
{
*(SubString -2) = '}';
SubString--;
}
/* Find the end of the typedef name */
SubBuffer = AsSkipUntilChar (SubString, ';');
/* And remove the typedef name */
SubBuffer = AsRemoveData (SubString, SubBuffer);
}
}
}
/******************************************************************************
*
* FUNCTION: AsRemoveEmptyBlocks
*
* DESCRIPTION: Remove any C blocks (e.g., if {}) that contain no code. This
* can happen as a result of removing lines such as DEBUG_PRINT.
*
******************************************************************************/
void
AsRemoveEmptyBlocks (
char *Buffer,
char *Filename)
{
char *SubBuffer;
char *BlockStart;
BOOLEAN EmptyBlock = TRUE;
BOOLEAN AnotherPassRequired = TRUE;
UINT32 BlockCount = 0;
while (AnotherPassRequired)
{
SubBuffer = Buffer;
AnotherPassRequired = FALSE;
while (*SubBuffer)
{
if (*SubBuffer == '{')
{
BlockStart = SubBuffer;
EmptyBlock = TRUE;
SubBuffer++;
while (*SubBuffer != '}')
{
if ((*SubBuffer != ' ') &&
(*SubBuffer != '\n'))
{
EmptyBlock = FALSE;
break;
}
SubBuffer++;
}
if (EmptyBlock)
{
/* Find start of the first line of the block */
while (*BlockStart != '\n')
{
BlockStart--;
}
/* Find end of the last line of the block */
SubBuffer = AsSkipUntilChar (SubBuffer, '\n');
if (!SubBuffer)
{
break;
}
/* Remove the block */
SubBuffer = AsRemoveData (BlockStart, SubBuffer);
BlockCount++;
AnotherPassRequired = TRUE;
continue;
}
}
SubBuffer++;
}
}
if (BlockCount)
{
Gbl_MadeChanges = TRUE;
AsPrint ("Code blocks deleted", BlockCount, Filename);
}
}
/******************************************************************************
*
* FUNCTION: AsRemoveDebugMacros
*
* DESCRIPTION: Remove all "Debug" macros -- macros that produce debug output.
*
******************************************************************************/
void
AsRemoveDebugMacros (
char *Buffer)
{
AsRemoveConditionalCompile (Buffer, "ACPI_DEBUG_OUTPUT");
AsRemoveStatement (Buffer, "ACPI_DEBUG_PRINT", REPLACE_WHOLE_WORD);
AsRemoveStatement (Buffer, "ACPI_DEBUG_PRINT_RAW", REPLACE_WHOLE_WORD);
AsRemoveStatement (Buffer, "DEBUG_EXEC", REPLACE_WHOLE_WORD);
AsRemoveStatement (Buffer, "FUNCTION_ENTRY", REPLACE_WHOLE_WORD);
AsRemoveStatement (Buffer, "PROC_NAME", REPLACE_WHOLE_WORD);
AsRemoveStatement (Buffer, "FUNCTION_TRACE", REPLACE_SUBSTRINGS);
AsRemoveStatement (Buffer, "DUMP_", REPLACE_SUBSTRINGS);
AsReplaceString ("return_VOID", "return", REPLACE_WHOLE_WORD, Buffer);
AsReplaceString ("return_PTR", "return", REPLACE_WHOLE_WORD, Buffer);
AsReplaceString ("return_ACPI_STATUS", "return", REPLACE_WHOLE_WORD, Buffer);
AsReplaceString ("return_acpi_status", "return", REPLACE_WHOLE_WORD, Buffer);
AsReplaceString ("return_VALUE", "return", REPLACE_WHOLE_WORD, Buffer);
}