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Diffstat (limited to 'sys/contrib/dev/acpica/compiler/prexpress.c')
| -rw-r--r-- | sys/contrib/dev/acpica/compiler/prexpress.c | 412 |
1 files changed, 412 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/compiler/prexpress.c b/sys/contrib/dev/acpica/compiler/prexpress.c new file mode 100644 index 000000000000..b2e7b785c5e9 --- /dev/null +++ b/sys/contrib/dev/acpica/compiler/prexpress.c @@ -0,0 +1,412 @@ +/****************************************************************************** + * + * Module Name: prexpress - Preprocessor #if expression support + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2025, 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 <contrib/dev/acpica/compiler/aslcompiler.h> + +#define _COMPONENT ASL_PREPROCESSOR + ACPI_MODULE_NAME ("prexpress") + +/* Local prototypes */ + +static char * +PrExpandMacros ( + char *Line); + + +#ifdef _UNDER_DEVELOPMENT +/****************************************************************************** + * + * FUNCTION: PrUnTokenize + * + * PARAMETERS: Buffer - Token Buffer + * Next - "Next" buffer from GetNextToken + * + * RETURN: None + * + * DESCRIPTION: Un-tokenized the current token buffer. The implementation is + * to simply set the null inserted by GetNextToken to a blank. + * If Next is NULL, there were no tokens found in the Buffer, + * so there is nothing to do. + * + *****************************************************************************/ + +static void +PrUnTokenize ( + char *Buffer, + char *Next) +{ + UINT32 Length = strlen (Buffer); + + + if (!Next) + { + return; + } + + if (Buffer[Length] != '\n') + { + Buffer[strlen(Buffer)] = ' '; + } +} +#endif + + +/****************************************************************************** + * + * FUNCTION: PrExpandMacros + * + * PARAMETERS: Line - Pointer into the current line + * + * RETURN: Updated pointer into the current line + * + * DESCRIPTION: Expand any macros found in the current line buffer. + * + *****************************************************************************/ + +static char * +PrExpandMacros ( + char *Line) +{ + char *Token; + char *ReplaceString; + PR_DEFINE_INFO *DefineInfo; + ACPI_SIZE TokenOffset; + char *Next; + int OffsetAdjust; + + + strcpy (AslGbl_ExpressionTokenBuffer, AslGbl_CurrentLineBuffer); + Token = PrGetNextToken (AslGbl_ExpressionTokenBuffer, PR_EXPR_SEPARATORS, &Next); + OffsetAdjust = 0; + + while (Token) + { + DefineInfo = PrMatchDefine (Token); + if (DefineInfo) + { + if (DefineInfo->Body) + { + /* This is a macro. TBD: Is this allowed? */ + + DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID + "Matched Macro: %s->%s\n", + AslGbl_CurrentLineNumber, DefineInfo->Identifier, + DefineInfo->Replacement); + + PrDoMacroInvocation (AslGbl_ExpressionTokenBuffer, Token, + DefineInfo, &Next); + } + else + { + ReplaceString = DefineInfo->Replacement; + + /* Replace the name in the original line buffer */ + + TokenOffset = Token - AslGbl_ExpressionTokenBuffer + OffsetAdjust; + PrReplaceData ( + &AslGbl_CurrentLineBuffer[TokenOffset], strlen (Token), + ReplaceString, strlen (ReplaceString)); + + /* Adjust for length difference between old and new name length */ + + OffsetAdjust += strlen (ReplaceString) - strlen (Token); + + DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID + "Matched #define within expression: %s->%s\n", + AslGbl_CurrentLineNumber, Token, + *ReplaceString ? ReplaceString : "(NULL STRING)"); + } + } + + Token = PrGetNextToken (NULL, PR_EXPR_SEPARATORS, &Next); + } + + return (Line); +} + + +/****************************************************************************** + * + * FUNCTION: PrIsDefined + * + * PARAMETERS: Identifier - Name to be resolved + * + * RETURN: 64-bit boolean integer value + * + * DESCRIPTION: Returns TRUE if the name is defined, FALSE otherwise (0). + * + *****************************************************************************/ + +UINT64 +PrIsDefined ( + char *Identifier) +{ + UINT64 Value; + PR_DEFINE_INFO *DefineInfo; + + + DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID + "**** Is defined?: %s\n", AslGbl_CurrentLineNumber, Identifier); + + Value = 0; /* Default is "Not defined" -- FALSE */ + + DefineInfo = PrMatchDefine (Identifier); + if (DefineInfo) + { + Value = ACPI_UINT64_MAX; /* TRUE */ + } + + DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID + "[#if defined %s] resolved to: %8.8X%8.8X\n", + AslGbl_CurrentLineNumber, Identifier, ACPI_FORMAT_UINT64 (Value)); + + return (Value); +} + + +/****************************************************************************** + * + * FUNCTION: PrResolveDefine + * + * PARAMETERS: Identifier - Name to be resolved + * + * RETURN: A 64-bit boolean integer value + * + * DESCRIPTION: Returns TRUE if the name is defined, FALSE otherwise (0). + * + *****************************************************************************/ + +UINT64 +PrResolveDefine ( + char *Identifier) +{ + UINT64 Value; + PR_DEFINE_INFO *DefineInfo; + + + DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID + "**** Resolve #define: %s\n", AslGbl_CurrentLineNumber, Identifier); + + Value = 0; /* Default is "Not defined" -- FALSE */ + + DefineInfo = PrMatchDefine (Identifier); + if (DefineInfo) + { + Value = ACPI_UINT64_MAX; /* TRUE */ + } + + DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID + "[#if defined %s] resolved to: %8.8X%8.8X\n", + AslGbl_CurrentLineNumber, Identifier, ACPI_FORMAT_UINT64 (Value)); + + return (Value); +} + + +/****************************************************************************** + * + * FUNCTION: PrResolveIntegerExpression + * + * PARAMETERS: Line - Pointer to integer expression + * ReturnValue - Where the resolved 64-bit integer is + * returned. + * + * RETURN: Status + * + * DESCRIPTION: Resolve an integer expression to a single value. Supports + * both integer constants and labels. + * + *****************************************************************************/ + +ACPI_STATUS +PrResolveIntegerExpression ( + char *Line, + UINT64 *ReturnValue) +{ + UINT64 Result; + char *ExpandedLine; + + + DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID + "**** Resolve #if: %s\n", AslGbl_CurrentLineNumber, Line); + + /* Expand all macros within the expression first */ + + ExpandedLine = PrExpandMacros (Line); + + /* Now we can evaluate the expression */ + + Result = PrEvaluateExpression (ExpandedLine); + DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID + "**** Expression Resolved to: %8.8X%8.8X\n", + AslGbl_CurrentLineNumber, ACPI_FORMAT_UINT64 (Result)); + + *ReturnValue = Result; + return (AE_OK); + +#if 0 +InvalidExpression: + + ACPI_FREE (EvalBuffer); + PrError (ASL_ERROR, ASL_MSG_INVALID_EXPRESSION, 0); + return (AE_ERROR); + + +NormalExit: + + DbgPrint (ASL_DEBUG_OUTPUT, PR_PREFIX_ID + "**** Expression Resolved to: %8.8X%8.8X\n", + AslGbl_CurrentLineNumber, ACPI_FORMAT_UINT64 (Value1)); + + *ReturnValue = Value1; + return (AE_OK); +#endif +} |