10d02842fSSascha Wildner %{
20d02842fSSascha Wildner /******************************************************************************
30d02842fSSascha Wildner *
40d02842fSSascha Wildner * Module Name: prparser.y - Bison input file for preprocessor parser
50d02842fSSascha Wildner *
60d02842fSSascha Wildner *****************************************************************************/
70d02842fSSascha Wildner
8b4315fc7SSascha Wildner /******************************************************************************
9b4315fc7SSascha Wildner *
10b4315fc7SSascha Wildner * 1. Copyright Notice
11b4315fc7SSascha Wildner *
12*383048acSSascha Wildner * Some or all of this work - Copyright (c) 1999 - 2021, Intel Corp.
130d02842fSSascha Wildner * All rights reserved.
140d02842fSSascha Wildner *
15b4315fc7SSascha Wildner * 2. License
16b4315fc7SSascha Wildner *
17b4315fc7SSascha Wildner * 2.1. This is your license from Intel Corp. under its intellectual property
18b4315fc7SSascha Wildner * rights. You may have additional license terms from the party that provided
19b4315fc7SSascha Wildner * you this software, covering your right to use that party's intellectual
20b4315fc7SSascha Wildner * property rights.
21b4315fc7SSascha Wildner *
22b4315fc7SSascha Wildner * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
23b4315fc7SSascha Wildner * copy of the source code appearing in this file ("Covered Code") an
24b4315fc7SSascha Wildner * irrevocable, perpetual, worldwide license under Intel's copyrights in the
25b4315fc7SSascha Wildner * base code distributed originally by Intel ("Original Intel Code") to copy,
26b4315fc7SSascha Wildner * make derivatives, distribute, use and display any portion of the Covered
27b4315fc7SSascha Wildner * Code in any form, with the right to sublicense such rights; and
28b4315fc7SSascha Wildner *
29b4315fc7SSascha Wildner * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
30b4315fc7SSascha Wildner * license (with the right to sublicense), under only those claims of Intel
31b4315fc7SSascha Wildner * patents that are infringed by the Original Intel Code, to make, use, sell,
32b4315fc7SSascha Wildner * offer to sell, and import the Covered Code and derivative works thereof
33b4315fc7SSascha Wildner * solely to the minimum extent necessary to exercise the above copyright
34b4315fc7SSascha Wildner * license, and in no event shall the patent license extend to any additions
35b4315fc7SSascha Wildner * to or modifications of the Original Intel Code. No other license or right
36b4315fc7SSascha Wildner * is granted directly or by implication, estoppel or otherwise;
37b4315fc7SSascha Wildner *
38b4315fc7SSascha Wildner * The above copyright and patent license is granted only if the following
39b4315fc7SSascha Wildner * conditions are met:
40b4315fc7SSascha Wildner *
41b4315fc7SSascha Wildner * 3. Conditions
42b4315fc7SSascha Wildner *
43b4315fc7SSascha Wildner * 3.1. Redistribution of Source with Rights to Further Distribute Source.
44b4315fc7SSascha Wildner * Redistribution of source code of any substantial portion of the Covered
45b4315fc7SSascha Wildner * Code or modification with rights to further distribute source must include
46b4315fc7SSascha Wildner * the above Copyright Notice, the above License, this list of Conditions,
47b4315fc7SSascha Wildner * and the following Disclaimer and Export Compliance provision. In addition,
48b4315fc7SSascha Wildner * Licensee must cause all Covered Code to which Licensee contributes to
49b4315fc7SSascha Wildner * contain a file documenting the changes Licensee made to create that Covered
50b4315fc7SSascha Wildner * Code and the date of any change. Licensee must include in that file the
51b4315fc7SSascha Wildner * documentation of any changes made by any predecessor Licensee. Licensee
52b4315fc7SSascha Wildner * must include a prominent statement that the modification is derived,
53b4315fc7SSascha Wildner * directly or indirectly, from Original Intel Code.
54b4315fc7SSascha Wildner *
55b4315fc7SSascha Wildner * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
56b4315fc7SSascha Wildner * Redistribution of source code of any substantial portion of the Covered
57b4315fc7SSascha Wildner * Code or modification without rights to further distribute source must
58b4315fc7SSascha Wildner * include the following Disclaimer and Export Compliance provision in the
59b4315fc7SSascha Wildner * documentation and/or other materials provided with distribution. In
60b4315fc7SSascha Wildner * addition, Licensee may not authorize further sublicense of source of any
61b4315fc7SSascha Wildner * portion of the Covered Code, and must include terms to the effect that the
62b4315fc7SSascha Wildner * license from Licensee to its licensee is limited to the intellectual
63b4315fc7SSascha Wildner * property embodied in the software Licensee provides to its licensee, and
64b4315fc7SSascha Wildner * not to intellectual property embodied in modifications its licensee may
65b4315fc7SSascha Wildner * make.
66b4315fc7SSascha Wildner *
67b4315fc7SSascha Wildner * 3.3. Redistribution of Executable. Redistribution in executable form of any
68b4315fc7SSascha Wildner * substantial portion of the Covered Code or modification must reproduce the
69b4315fc7SSascha Wildner * above Copyright Notice, and the following Disclaimer and Export Compliance
70b4315fc7SSascha Wildner * provision in the documentation and/or other materials provided with the
71b4315fc7SSascha Wildner * distribution.
72b4315fc7SSascha Wildner *
73b4315fc7SSascha Wildner * 3.4. Intel retains all right, title, and interest in and to the Original
74b4315fc7SSascha Wildner * Intel Code.
75b4315fc7SSascha Wildner *
76b4315fc7SSascha Wildner * 3.5. Neither the name Intel nor any other trademark owned or controlled by
77b4315fc7SSascha Wildner * Intel shall be used in advertising or otherwise to promote the sale, use or
78b4315fc7SSascha Wildner * other dealings in products derived from or relating to the Covered Code
79b4315fc7SSascha Wildner * without prior written authorization from Intel.
80b4315fc7SSascha Wildner *
81b4315fc7SSascha Wildner * 4. Disclaimer and Export Compliance
82b4315fc7SSascha Wildner *
83b4315fc7SSascha Wildner * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
84b4315fc7SSascha Wildner * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
85b4315fc7SSascha Wildner * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
86b4315fc7SSascha Wildner * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
87b4315fc7SSascha Wildner * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
88b4315fc7SSascha Wildner * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
89b4315fc7SSascha Wildner * PARTICULAR PURPOSE.
90b4315fc7SSascha Wildner *
91b4315fc7SSascha Wildner * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
92b4315fc7SSascha Wildner * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
93b4315fc7SSascha Wildner * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
94b4315fc7SSascha Wildner * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
95b4315fc7SSascha Wildner * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
96b4315fc7SSascha Wildner * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
97b4315fc7SSascha Wildner * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
98b4315fc7SSascha Wildner * LIMITED REMEDY.
99b4315fc7SSascha Wildner *
100b4315fc7SSascha Wildner * 4.3. Licensee shall not export, either directly or indirectly, any of this
101b4315fc7SSascha Wildner * software or system incorporating such software without first obtaining any
102b4315fc7SSascha Wildner * required license or other approval from the U. S. Department of Commerce or
103b4315fc7SSascha Wildner * any other agency or department of the United States Government. In the
104b4315fc7SSascha Wildner * event Licensee exports any such software from the United States or
105b4315fc7SSascha Wildner * re-exports any such software from a foreign destination, Licensee shall
106b4315fc7SSascha Wildner * ensure that the distribution and export/re-export of the software is in
107b4315fc7SSascha Wildner * compliance with all laws, regulations, orders, or other restrictions of the
108b4315fc7SSascha Wildner * U.S. Export Administration Regulations. Licensee agrees that neither it nor
109b4315fc7SSascha Wildner * any of its subsidiaries will export/re-export any technical data, process,
110b4315fc7SSascha Wildner * software, or service, directly or indirectly, to any country for which the
111b4315fc7SSascha Wildner * United States government or any agency thereof requires an export license,
112b4315fc7SSascha Wildner * other governmental approval, or letter of assurance, without first obtaining
113b4315fc7SSascha Wildner * such license, approval or letter.
114b4315fc7SSascha Wildner *
115b4315fc7SSascha Wildner *****************************************************************************
116b4315fc7SSascha Wildner *
117b4315fc7SSascha Wildner * Alternatively, you may choose to be licensed under the terms of the
118b4315fc7SSascha Wildner * following license:
119b4315fc7SSascha Wildner *
1200d02842fSSascha Wildner * Redistribution and use in source and binary forms, with or without
1210d02842fSSascha Wildner * modification, are permitted provided that the following conditions
1220d02842fSSascha Wildner * are met:
1230d02842fSSascha Wildner * 1. Redistributions of source code must retain the above copyright
1240d02842fSSascha Wildner * notice, this list of conditions, and the following disclaimer,
1250d02842fSSascha Wildner * without modification.
1260d02842fSSascha Wildner * 2. Redistributions in binary form must reproduce at minimum a disclaimer
1270d02842fSSascha Wildner * substantially similar to the "NO WARRANTY" disclaimer below
1280d02842fSSascha Wildner * ("Disclaimer") and any redistribution must be conditioned upon
1290d02842fSSascha Wildner * including a substantially similar Disclaimer requirement for further
1300d02842fSSascha Wildner * binary redistribution.
1310d02842fSSascha Wildner * 3. Neither the names of the above-listed copyright holders nor the names
1320d02842fSSascha Wildner * of any contributors may be used to endorse or promote products derived
1330d02842fSSascha Wildner * from this software without specific prior written permission.
1340d02842fSSascha Wildner *
135b4315fc7SSascha Wildner * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
136b4315fc7SSascha Wildner * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
137b4315fc7SSascha Wildner * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
138b4315fc7SSascha Wildner * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
139b4315fc7SSascha Wildner * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
140b4315fc7SSascha Wildner * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
141b4315fc7SSascha Wildner * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
142b4315fc7SSascha Wildner * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
143b4315fc7SSascha Wildner * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
144b4315fc7SSascha Wildner * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
145b4315fc7SSascha Wildner * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
146b4315fc7SSascha Wildner *
147b4315fc7SSascha Wildner * Alternatively, you may choose to be licensed under the terms of the
1480d02842fSSascha Wildner * GNU General Public License ("GPL") version 2 as published by the Free
1490d02842fSSascha Wildner * Software Foundation.
1500d02842fSSascha Wildner *
151b4315fc7SSascha Wildner *****************************************************************************/
1520d02842fSSascha Wildner
1530d02842fSSascha Wildner #include "aslcompiler.h"
1540d02842fSSascha Wildner
1550d02842fSSascha Wildner #define _COMPONENT ASL_PREPROCESSOR
1560d02842fSSascha Wildner ACPI_MODULE_NAME ("prparser")
1570d02842fSSascha Wildner
15825ca8c79SSascha Wildner void * AslLocalAllocate (unsigned int Size);
15925ca8c79SSascha Wildner
16025ca8c79SSascha Wildner /* Bison/yacc configuration */
16125ca8c79SSascha Wildner
16225ca8c79SSascha Wildner #undef alloca
16325ca8c79SSascha Wildner #define alloca AslLocalAllocate
16425ca8c79SSascha Wildner
1650d02842fSSascha Wildner int PrParserlex (void);
1660d02842fSSascha Wildner int PrParserparse (void);
1670d02842fSSascha Wildner void PrParsererror (char const *msg);
1680d02842fSSascha Wildner extern char *PrParsertext;
1690d02842fSSascha Wildner
1700d02842fSSascha Wildner UINT64 PrParserResult; /* Expression return value */
1710d02842fSSascha Wildner
1720d02842fSSascha Wildner /* Bison/yacc configuration */
1730d02842fSSascha Wildner
1740d02842fSSascha Wildner #define yytname PrParsername
1750d02842fSSascha Wildner #define YYDEBUG 1 /* Enable debug output */
1760d02842fSSascha Wildner #define YYERROR_VERBOSE 1 /* Verbose error messages */
1770d02842fSSascha Wildner #define YYFLAG -32768
1780d02842fSSascha Wildner
1790d02842fSSascha Wildner /* Define YYMALLOC/YYFREE to prevent redefinition errors */
1800d02842fSSascha Wildner
1810d02842fSSascha Wildner #define YYMALLOC malloc
1820d02842fSSascha Wildner #define YYFREE free
1830d02842fSSascha Wildner %}
1840d02842fSSascha Wildner
1850d02842fSSascha Wildner %union
1860d02842fSSascha Wildner {
1870d02842fSSascha Wildner UINT64 value;
1880d02842fSSascha Wildner UINT32 op;
1890d02842fSSascha Wildner char *str;
1900d02842fSSascha Wildner }
1910d02842fSSascha Wildner
1920d02842fSSascha Wildner /*! [Begin] no source code translation */
1930d02842fSSascha Wildner
1940d02842fSSascha Wildner %type <value> Expression
1950d02842fSSascha Wildner
1960d02842fSSascha Wildner %token <op> EXPOP_EOF
1970d02842fSSascha Wildner %token <op> EXPOP_NEW_LINE
1980d02842fSSascha Wildner %token <op> EXPOP_NUMBER
1990d02842fSSascha Wildner %token <op> EXPOP_HEX_NUMBER
2000d02842fSSascha Wildner %token <op> EXPOP_RESERVED1
2010d02842fSSascha Wildner %token <op> EXPOP_RESERVED2
2020d02842fSSascha Wildner %token <op> EXPOP_PAREN_OPEN
2030d02842fSSascha Wildner %token <op> EXPOP_PAREN_CLOSE
2040d02842fSSascha Wildner
2050d02842fSSascha Wildner %left <op> EXPOP_LOGICAL_OR
2060d02842fSSascha Wildner %left <op> EXPOP_LOGICAL_AND
2070d02842fSSascha Wildner %left <op> EXPOP_OR
2080d02842fSSascha Wildner %left <op> EXPOP_XOR
2090d02842fSSascha Wildner %left <op> EXPOP_AND
2100d02842fSSascha Wildner %left <op> EXPOP_EQUAL EXPOP_NOT_EQUAL
2110d02842fSSascha Wildner %left <op> EXPOP_GREATER EXPOP_LESS EXPOP_GREATER_EQUAL EXPOP_LESS_EQUAL
2120d02842fSSascha Wildner %left <op> EXPOP_SHIFT_RIGHT EXPOP_SHIFT_LEFT
2130d02842fSSascha Wildner %left <op> EXPOP_ADD EXPOP_SUBTRACT
2140d02842fSSascha Wildner %left <op> EXPOP_MULTIPLY EXPOP_DIVIDE EXPOP_MODULO
2150d02842fSSascha Wildner %right <op> EXPOP_ONES_COMPLIMENT EXPOP_LOGICAL_NOT
2160d02842fSSascha Wildner
2170d02842fSSascha Wildner /* Tokens above must be kept in synch with dtparser.y */
2180d02842fSSascha Wildner
2190d02842fSSascha Wildner %token <op> EXPOP_DEFINE
2200d02842fSSascha Wildner %token <op> EXPOP_IDENTIFIER
2210d02842fSSascha Wildner
2220d02842fSSascha Wildner %%
2230d02842fSSascha Wildner
2240d02842fSSascha Wildner /*
2250d02842fSSascha Wildner * Operator precedence rules (from K&R)
2260d02842fSSascha Wildner *
2270d02842fSSascha Wildner * 1) ( )
2280d02842fSSascha Wildner * 2) ! ~ (unary operators that are supported here)
2290d02842fSSascha Wildner * 3) * / %
2300d02842fSSascha Wildner * 4) + -
2310d02842fSSascha Wildner * 5) >> <<
2320d02842fSSascha Wildner * 6) < > <= >=
2330d02842fSSascha Wildner * 7) == !=
2340d02842fSSascha Wildner * 8) &
2350d02842fSSascha Wildner * 9) ^
2360d02842fSSascha Wildner * 10) |
2370d02842fSSascha Wildner * 11) &&
2380d02842fSSascha Wildner * 12) ||
2390d02842fSSascha Wildner */
2400d02842fSSascha Wildner
2410d02842fSSascha Wildner /*! [End] no source code translation !*/
2420d02842fSSascha Wildner
2430d02842fSSascha Wildner Value
2440d02842fSSascha Wildner : Expression EXPOP_NEW_LINE { PrParserResult=$1; return 0; } /* End of line (newline) */
2450d02842fSSascha Wildner | Expression EXPOP_EOF { PrParserResult=$1; return 0; } /* End of string (0) */
2460d02842fSSascha Wildner ;
2470d02842fSSascha Wildner
2480d02842fSSascha Wildner Expression
2490d02842fSSascha Wildner
2500d02842fSSascha Wildner /* Unary operators */
2510d02842fSSascha Wildner
2520d02842fSSascha Wildner : EXPOP_LOGICAL_NOT Expression { $$ = DtDoOperator ($2, EXPOP_LOGICAL_NOT, $2);}
2530d02842fSSascha Wildner | EXPOP_ONES_COMPLIMENT Expression { $$ = DtDoOperator ($2, EXPOP_ONES_COMPLIMENT, $2);}
2540d02842fSSascha Wildner
2550d02842fSSascha Wildner /* Binary operators */
2560d02842fSSascha Wildner
2570d02842fSSascha Wildner | Expression EXPOP_MULTIPLY Expression { $$ = DtDoOperator ($1, EXPOP_MULTIPLY, $3);}
2580d02842fSSascha Wildner | Expression EXPOP_DIVIDE Expression { $$ = DtDoOperator ($1, EXPOP_DIVIDE, $3);}
2590d02842fSSascha Wildner | Expression EXPOP_MODULO Expression { $$ = DtDoOperator ($1, EXPOP_MODULO, $3);}
2600d02842fSSascha Wildner | Expression EXPOP_ADD Expression { $$ = DtDoOperator ($1, EXPOP_ADD, $3);}
2610d02842fSSascha Wildner | Expression EXPOP_SUBTRACT Expression { $$ = DtDoOperator ($1, EXPOP_SUBTRACT, $3);}
2620d02842fSSascha Wildner | Expression EXPOP_SHIFT_RIGHT Expression { $$ = DtDoOperator ($1, EXPOP_SHIFT_RIGHT, $3);}
2630d02842fSSascha Wildner | Expression EXPOP_SHIFT_LEFT Expression { $$ = DtDoOperator ($1, EXPOP_SHIFT_LEFT, $3);}
2640d02842fSSascha Wildner | Expression EXPOP_GREATER Expression { $$ = DtDoOperator ($1, EXPOP_GREATER, $3);}
2650d02842fSSascha Wildner | Expression EXPOP_LESS Expression { $$ = DtDoOperator ($1, EXPOP_LESS, $3);}
2660d02842fSSascha Wildner | Expression EXPOP_GREATER_EQUAL Expression { $$ = DtDoOperator ($1, EXPOP_GREATER_EQUAL, $3);}
2670d02842fSSascha Wildner | Expression EXPOP_LESS_EQUAL Expression { $$ = DtDoOperator ($1, EXPOP_LESS_EQUAL, $3);}
2680d02842fSSascha Wildner | Expression EXPOP_EQUAL Expression { $$ = DtDoOperator ($1, EXPOP_EQUAL, $3);}
2690d02842fSSascha Wildner | Expression EXPOP_NOT_EQUAL Expression { $$ = DtDoOperator ($1, EXPOP_NOT_EQUAL, $3);}
2700d02842fSSascha Wildner | Expression EXPOP_AND Expression { $$ = DtDoOperator ($1, EXPOP_AND, $3);}
2710d02842fSSascha Wildner | Expression EXPOP_XOR Expression { $$ = DtDoOperator ($1, EXPOP_XOR, $3);}
2720d02842fSSascha Wildner | Expression EXPOP_OR Expression { $$ = DtDoOperator ($1, EXPOP_OR, $3);}
2730d02842fSSascha Wildner | Expression EXPOP_LOGICAL_AND Expression { $$ = DtDoOperator ($1, EXPOP_LOGICAL_AND, $3);}
2740d02842fSSascha Wildner | Expression EXPOP_LOGICAL_OR Expression { $$ = DtDoOperator ($1, EXPOP_LOGICAL_OR, $3);}
2750d02842fSSascha Wildner
2760d02842fSSascha Wildner /* Parentheses: '(' Expression ')' */
2770d02842fSSascha Wildner
2780d02842fSSascha Wildner | EXPOP_PAREN_OPEN Expression
2790d02842fSSascha Wildner EXPOP_PAREN_CLOSE { $$ = $2;}
2800d02842fSSascha Wildner
2810d02842fSSascha Wildner /* #if defined (ID) or #if defined ID */
2820d02842fSSascha Wildner
2830d02842fSSascha Wildner | EXPOP_DEFINE EXPOP_PAREN_OPEN EXPOP_IDENTIFIER
2840d02842fSSascha Wildner EXPOP_PAREN_CLOSE { $$ = PrIsDefined (PrParserlval.str);}
2850d02842fSSascha Wildner
2860d02842fSSascha Wildner | EXPOP_DEFINE EXPOP_IDENTIFIER { $$ = PrIsDefined (PrParserlval.str);}
2870d02842fSSascha Wildner
2880d02842fSSascha Wildner | EXPOP_IDENTIFIER { $$ = PrResolveDefine (PrParserlval.str);}
2890d02842fSSascha Wildner
2900d02842fSSascha Wildner /* Default base for a non-prefixed integer is 10 */
2910d02842fSSascha Wildner
292cf6b3eb1SSascha Wildner | EXPOP_NUMBER { AcpiUtStrtoul64 (PrParsertext, &$$);}
2930d02842fSSascha Wildner
2940d02842fSSascha Wildner /* Standard hex number (0x1234) */
2950d02842fSSascha Wildner
296cf6b3eb1SSascha Wildner | EXPOP_HEX_NUMBER { AcpiUtStrtoul64 (PrParsertext, &$$);}
2970d02842fSSascha Wildner ;
2980d02842fSSascha Wildner %%
2990d02842fSSascha Wildner
3000d02842fSSascha Wildner /*
3010d02842fSSascha Wildner * Local support functions, including parser entry point
3020d02842fSSascha Wildner */
3030d02842fSSascha Wildner #define PR_FIRST_PARSE_OPCODE EXPOP_EOF
3040d02842fSSascha Wildner #define PR_YYTNAME_START 3
3050d02842fSSascha Wildner
3060d02842fSSascha Wildner
3070d02842fSSascha Wildner /******************************************************************************
3080d02842fSSascha Wildner *
3090d02842fSSascha Wildner * FUNCTION: PrParsererror
3100d02842fSSascha Wildner *
3110d02842fSSascha Wildner * PARAMETERS: Message - Parser-generated error message
3120d02842fSSascha Wildner *
3130d02842fSSascha Wildner * RETURN: None
3140d02842fSSascha Wildner *
3150d02842fSSascha Wildner * DESCRIPTION: Handler for parser errors
3160d02842fSSascha Wildner *
3170d02842fSSascha Wildner *****************************************************************************/
3180d02842fSSascha Wildner
3190d02842fSSascha Wildner void
3200d02842fSSascha Wildner PrParsererror (
3210d02842fSSascha Wildner char const *Message)
3220d02842fSSascha Wildner {
323267c04fdSSascha Wildner
324806343b9SSascha Wildner sprintf (AslGbl_StringBuffer, "Preprocessor Parser : %s (near line %u)",
325806343b9SSascha Wildner Message, AslGbl_CurrentLineNumber);
3260d02842fSSascha Wildner DtError (ASL_ERROR, ASL_MSG_SYNTAX,
327806343b9SSascha Wildner NULL, (char *) AslGbl_StringBuffer);
3280d02842fSSascha Wildner }
3290d02842fSSascha Wildner
3300d02842fSSascha Wildner
3310d02842fSSascha Wildner /******************************************************************************
3320d02842fSSascha Wildner *
3330d02842fSSascha Wildner * FUNCTION: PrGetOpName
3340d02842fSSascha Wildner *
3350d02842fSSascha Wildner * PARAMETERS: ParseOpcode - Parser token (EXPOP_*)
3360d02842fSSascha Wildner *
3370d02842fSSascha Wildner * RETURN: Pointer to the opcode name
3380d02842fSSascha Wildner *
3390d02842fSSascha Wildner * DESCRIPTION: Get the ascii name of the parse opcode for debug output
3400d02842fSSascha Wildner *
3410d02842fSSascha Wildner *****************************************************************************/
3420d02842fSSascha Wildner
3430d02842fSSascha Wildner char *
PrGetOpName(UINT32 ParseOpcode)3440d02842fSSascha Wildner PrGetOpName (
3450d02842fSSascha Wildner UINT32 ParseOpcode)
3460d02842fSSascha Wildner {
3470d02842fSSascha Wildner #ifdef ASL_YYTNAME_START
3480d02842fSSascha Wildner /*
3490d02842fSSascha Wildner * First entries (PR_YYTNAME_START) in yytname are special reserved names.
3500d02842fSSascha Wildner * Ignore first 6 characters of name (EXPOP_)
3510d02842fSSascha Wildner */
3520d02842fSSascha Wildner return ((char *) yytname
3530d02842fSSascha Wildner [(ParseOpcode - PR_FIRST_PARSE_OPCODE) + PR_YYTNAME_START] + 6);
3540d02842fSSascha Wildner #else
3550d02842fSSascha Wildner return ("[Unknown parser generator]");
3560d02842fSSascha Wildner #endif
3570d02842fSSascha Wildner }
3580d02842fSSascha Wildner
3590d02842fSSascha Wildner
3600d02842fSSascha Wildner /******************************************************************************
3610d02842fSSascha Wildner *
3620d02842fSSascha Wildner * FUNCTION: PrEvaluateExpression
3630d02842fSSascha Wildner *
3640d02842fSSascha Wildner * PARAMETERS: ExprString - Expression to be evaluated. Must be
3650d02842fSSascha Wildner * terminated by either a newline or a NUL
3660d02842fSSascha Wildner * string terminator
3670d02842fSSascha Wildner *
3680d02842fSSascha Wildner * RETURN: 64-bit value for the expression
3690d02842fSSascha Wildner *
3700d02842fSSascha Wildner * DESCRIPTION: Main entry point for the DT expression parser
3710d02842fSSascha Wildner *
3720d02842fSSascha Wildner *****************************************************************************/
3730d02842fSSascha Wildner
3740d02842fSSascha Wildner UINT64
PrEvaluateExpression(char * ExprString)3750d02842fSSascha Wildner PrEvaluateExpression (
3760d02842fSSascha Wildner char *ExprString)
3770d02842fSSascha Wildner {
3780d02842fSSascha Wildner
3790d02842fSSascha Wildner DbgPrint (ASL_DEBUG_OUTPUT,
3800d02842fSSascha Wildner "**** Input expression: %s\n", ExprString);
3810d02842fSSascha Wildner
3820d02842fSSascha Wildner /* Point lexer to the input string */
3830d02842fSSascha Wildner
3840d02842fSSascha Wildner if (PrInitLexer (ExprString))
3850d02842fSSascha Wildner {
3860d02842fSSascha Wildner DtError (ASL_ERROR, ASL_MSG_COMPILER_INTERNAL,
3870d02842fSSascha Wildner NULL, "Could not initialize lexer");
3880d02842fSSascha Wildner return (0);
3890d02842fSSascha Wildner }
3900d02842fSSascha Wildner
3910d02842fSSascha Wildner /* Parse/Evaluate the input string (value returned in PrParserResult) */
3920d02842fSSascha Wildner
3930d02842fSSascha Wildner PrParserparse ();
3940d02842fSSascha Wildner PrTerminateLexer ();
3950d02842fSSascha Wildner
3960d02842fSSascha Wildner DbgPrint (ASL_DEBUG_OUTPUT,
3970d02842fSSascha Wildner "**** Parser returned value: %u (%8.8X%8.8X)\n",
3980d02842fSSascha Wildner (UINT32) PrParserResult, ACPI_FORMAT_UINT64 (PrParserResult));
3990d02842fSSascha Wildner
4000d02842fSSascha Wildner return (PrParserResult);
4010d02842fSSascha Wildner }
402