prparser.y revision 1.2.10.2
1 1.2.10.2 tls %{ 2 1.2.10.2 tls /****************************************************************************** 3 1.2.10.2 tls * 4 1.2.10.2 tls * Module Name: prparser.y - Bison input file for preprocessor parser 5 1.2.10.2 tls * 6 1.2.10.2 tls *****************************************************************************/ 7 1.2.10.2 tls 8 1.2.10.2 tls /* 9 1.2.10.2 tls * Copyright (C) 2000 - 2013, Intel Corp. 10 1.2.10.2 tls * All rights reserved. 11 1.2.10.2 tls * 12 1.2.10.2 tls * Redistribution and use in source and binary forms, with or without 13 1.2.10.2 tls * modification, are permitted provided that the following conditions 14 1.2.10.2 tls * are met: 15 1.2.10.2 tls * 1. Redistributions of source code must retain the above copyright 16 1.2.10.2 tls * notice, this list of conditions, and the following disclaimer, 17 1.2.10.2 tls * without modification. 18 1.2.10.2 tls * 2. Redistributions in binary form must reproduce at minimum a disclaimer 19 1.2.10.2 tls * substantially similar to the "NO WARRANTY" disclaimer below 20 1.2.10.2 tls * ("Disclaimer") and any redistribution must be conditioned upon 21 1.2.10.2 tls * including a substantially similar Disclaimer requirement for further 22 1.2.10.2 tls * binary redistribution. 23 1.2.10.2 tls * 3. Neither the names of the above-listed copyright holders nor the names 24 1.2.10.2 tls * of any contributors may be used to endorse or promote products derived 25 1.2.10.2 tls * from this software without specific prior written permission. 26 1.2.10.2 tls * 27 1.2.10.2 tls * Alternatively, this software may be distributed under the terms of the 28 1.2.10.2 tls * GNU General Public License ("GPL") version 2 as published by the Free 29 1.2.10.2 tls * Software Foundation. 30 1.2.10.2 tls * 31 1.2.10.2 tls * NO WARRANTY 32 1.2.10.2 tls * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 33 1.2.10.2 tls * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 34 1.2.10.2 tls * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 35 1.2.10.2 tls * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 36 1.2.10.2 tls * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 1.2.10.2 tls * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 1.2.10.2 tls * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 1.2.10.2 tls * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 40 1.2.10.2 tls * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 41 1.2.10.2 tls * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 42 1.2.10.2 tls * POSSIBILITY OF SUCH DAMAGES. 43 1.2.10.2 tls */ 44 1.2.10.2 tls 45 1.2.10.2 tls #include "aslcompiler.h" 46 1.2.10.2 tls #include "dtcompiler.h" 47 1.2.10.2 tls 48 1.2.10.2 tls #define _COMPONENT ASL_PREPROCESSOR 49 1.2.10.2 tls ACPI_MODULE_NAME ("prparser") 50 1.2.10.2 tls 51 1.2.10.2 tls int PrParserlex (void); 52 1.2.10.2 tls int PrParserparse (void); 53 1.2.10.2 tls void PrParsererror (char const *msg); 54 1.2.10.2 tls extern char *PrParsertext; 55 1.2.10.2 tls 56 1.2.10.2 tls UINT64 PrParserResult; /* Expression return value */ 57 1.2.10.2 tls 58 1.2.10.2 tls /* Bison/yacc configuration */ 59 1.2.10.2 tls 60 1.2.10.2 tls #ifndef yytname 61 1.2.10.2 tls #define yytname PrParsername 62 1.2.10.2 tls #endif 63 1.2.10.2 tls #define YYDEBUG 1 /* Enable debug output */ 64 1.2.10.2 tls #define YYERROR_VERBOSE 1 /* Verbose error messages */ 65 1.2.10.2 tls #define YYFLAG -32768 66 1.2.10.2 tls 67 1.2.10.2 tls /* Define YYMALLOC/YYFREE to prevent redefinition errors */ 68 1.2.10.2 tls 69 1.2.10.2 tls #define YYMALLOC malloc 70 1.2.10.2 tls #define YYFREE free 71 1.2.10.2 tls %} 72 1.2.10.2 tls 73 1.2.10.2 tls %union 74 1.2.10.2 tls { 75 1.2.10.2 tls UINT64 value; 76 1.2.10.2 tls UINT32 op; 77 1.2.10.2 tls char *str; 78 1.2.10.2 tls } 79 1.2.10.2 tls 80 1.2.10.2 tls /*! [Begin] no source code translation */ 81 1.2.10.2 tls 82 1.2.10.2 tls %type <value> Expression 83 1.2.10.2 tls 84 1.2.10.2 tls %token <op> EXPOP_EOF 85 1.2.10.2 tls %token <op> EXPOP_NEW_LINE 86 1.2.10.2 tls %token <op> EXPOP_NUMBER 87 1.2.10.2 tls %token <op> EXPOP_HEX_NUMBER 88 1.2.10.2 tls %token <op> EXPOP_RESERVED1 89 1.2.10.2 tls %token <op> EXPOP_RESERVED2 90 1.2.10.2 tls %token <op> EXPOP_PAREN_OPEN 91 1.2.10.2 tls %token <op> EXPOP_PAREN_CLOSE 92 1.2.10.2 tls 93 1.2.10.2 tls %left <op> EXPOP_LOGICAL_OR 94 1.2.10.2 tls %left <op> EXPOP_LOGICAL_AND 95 1.2.10.2 tls %left <op> EXPOP_OR 96 1.2.10.2 tls %left <op> EXPOP_XOR 97 1.2.10.2 tls %left <op> EXPOP_AND 98 1.2.10.2 tls %left <op> EXPOP_EQUAL EXPOP_NOT_EQUAL 99 1.2.10.2 tls %left <op> EXPOP_GREATER EXPOP_LESS EXPOP_GREATER_EQUAL EXPOP_LESS_EQUAL 100 1.2.10.2 tls %left <op> EXPOP_SHIFT_RIGHT EXPOP_SHIFT_LEFT 101 1.2.10.2 tls %left <op> EXPOP_ADD EXPOP_SUBTRACT 102 1.2.10.2 tls %left <op> EXPOP_MULTIPLY EXPOP_DIVIDE EXPOP_MODULO 103 1.2.10.2 tls %right <op> EXPOP_ONES_COMPLIMENT EXPOP_LOGICAL_NOT 104 1.2.10.2 tls 105 1.2.10.2 tls /* Tokens above must be kept in synch with dtparser.y */ 106 1.2.10.2 tls 107 1.2.10.2 tls %token <op> EXPOP_DEFINE 108 1.2.10.2 tls %token <op> EXPOP_IDENTIFIER 109 1.2.10.2 tls 110 1.2.10.2 tls %% 111 1.2.10.2 tls 112 1.2.10.2 tls /* 113 1.2.10.2 tls * Operator precedence rules (from K&R) 114 1.2.10.2 tls * 115 1.2.10.2 tls * 1) ( ) 116 1.2.10.2 tls * 2) ! ~ (unary operators that are supported here) 117 1.2.10.2 tls * 3) * / % 118 1.2.10.2 tls * 4) + - 119 1.2.10.2 tls * 5) >> << 120 1.2.10.2 tls * 6) < > <= >= 121 1.2.10.2 tls * 7) == != 122 1.2.10.2 tls * 8) & 123 1.2.10.2 tls * 9) ^ 124 1.2.10.2 tls * 10) | 125 1.2.10.2 tls * 11) && 126 1.2.10.2 tls * 12) || 127 1.2.10.2 tls */ 128 1.2.10.2 tls 129 1.2.10.2 tls /*! [End] no source code translation !*/ 130 1.2.10.2 tls 131 1.2.10.2 tls Value 132 1.2.10.2 tls : Expression EXPOP_NEW_LINE { PrParserResult=$1; return 0; } /* End of line (newline) */ 133 1.2.10.2 tls | Expression EXPOP_EOF { PrParserResult=$1; return 0; } /* End of string (0) */ 134 1.2.10.2 tls ; 135 1.2.10.2 tls 136 1.2.10.2 tls Expression 137 1.2.10.2 tls 138 1.2.10.2 tls /* Unary operators */ 139 1.2.10.2 tls 140 1.2.10.2 tls : EXPOP_LOGICAL_NOT Expression { $$ = DtDoOperator ($2, EXPOP_LOGICAL_NOT, $2);} 141 1.2.10.2 tls | EXPOP_ONES_COMPLIMENT Expression { $$ = DtDoOperator ($2, EXPOP_ONES_COMPLIMENT, $2);} 142 1.2.10.2 tls 143 1.2.10.2 tls /* Binary operators */ 144 1.2.10.2 tls 145 1.2.10.2 tls | Expression EXPOP_MULTIPLY Expression { $$ = DtDoOperator ($1, EXPOP_MULTIPLY, $3);} 146 1.2.10.2 tls | Expression EXPOP_DIVIDE Expression { $$ = DtDoOperator ($1, EXPOP_DIVIDE, $3);} 147 1.2.10.2 tls | Expression EXPOP_MODULO Expression { $$ = DtDoOperator ($1, EXPOP_MODULO, $3);} 148 1.2.10.2 tls | Expression EXPOP_ADD Expression { $$ = DtDoOperator ($1, EXPOP_ADD, $3);} 149 1.2.10.2 tls | Expression EXPOP_SUBTRACT Expression { $$ = DtDoOperator ($1, EXPOP_SUBTRACT, $3);} 150 1.2.10.2 tls | Expression EXPOP_SHIFT_RIGHT Expression { $$ = DtDoOperator ($1, EXPOP_SHIFT_RIGHT, $3);} 151 1.2.10.2 tls | Expression EXPOP_SHIFT_LEFT Expression { $$ = DtDoOperator ($1, EXPOP_SHIFT_LEFT, $3);} 152 1.2.10.2 tls | Expression EXPOP_GREATER Expression { $$ = DtDoOperator ($1, EXPOP_GREATER, $3);} 153 1.2.10.2 tls | Expression EXPOP_LESS Expression { $$ = DtDoOperator ($1, EXPOP_LESS, $3);} 154 1.2.10.2 tls | Expression EXPOP_GREATER_EQUAL Expression { $$ = DtDoOperator ($1, EXPOP_GREATER_EQUAL, $3);} 155 1.2.10.2 tls | Expression EXPOP_LESS_EQUAL Expression { $$ = DtDoOperator ($1, EXPOP_LESS_EQUAL, $3);} 156 1.2.10.2 tls | Expression EXPOP_EQUAL Expression { $$ = DtDoOperator ($1, EXPOP_EQUAL, $3);} 157 1.2.10.2 tls | Expression EXPOP_NOT_EQUAL Expression { $$ = DtDoOperator ($1, EXPOP_NOT_EQUAL, $3);} 158 1.2.10.2 tls | Expression EXPOP_AND Expression { $$ = DtDoOperator ($1, EXPOP_AND, $3);} 159 1.2.10.2 tls | Expression EXPOP_XOR Expression { $$ = DtDoOperator ($1, EXPOP_XOR, $3);} 160 1.2.10.2 tls | Expression EXPOP_OR Expression { $$ = DtDoOperator ($1, EXPOP_OR, $3);} 161 1.2.10.2 tls | Expression EXPOP_LOGICAL_AND Expression { $$ = DtDoOperator ($1, EXPOP_LOGICAL_AND, $3);} 162 1.2.10.2 tls | Expression EXPOP_LOGICAL_OR Expression { $$ = DtDoOperator ($1, EXPOP_LOGICAL_OR, $3);} 163 1.2.10.2 tls 164 1.2.10.2 tls /* Parentheses: '(' Expression ')' */ 165 1.2.10.2 tls 166 1.2.10.2 tls | EXPOP_PAREN_OPEN Expression 167 1.2.10.2 tls EXPOP_PAREN_CLOSE { $$ = $2;} 168 1.2.10.2 tls 169 1.2.10.2 tls /* #if defined (ID) or #if defined ID */ 170 1.2.10.2 tls 171 1.2.10.2 tls | EXPOP_DEFINE EXPOP_PAREN_OPEN EXPOP_IDENTIFIER 172 1.2.10.2 tls EXPOP_PAREN_CLOSE { $$ = PrIsDefined (PrParserlval.str);} 173 1.2.10.2 tls 174 1.2.10.2 tls | EXPOP_DEFINE EXPOP_IDENTIFIER { $$ = PrIsDefined (PrParserlval.str);} 175 1.2.10.2 tls 176 1.2.10.2 tls | EXPOP_IDENTIFIER { $$ = PrResolveDefine (PrParserlval.str);} 177 1.2.10.2 tls 178 1.2.10.2 tls /* Default base for a non-prefixed integer is 10 */ 179 1.2.10.2 tls 180 1.2.10.2 tls | EXPOP_NUMBER { UtStrtoul64 (PrParsertext, 10, &$$);} 181 1.2.10.2 tls 182 1.2.10.2 tls /* Standard hex number (0x1234) */ 183 1.2.10.2 tls 184 1.2.10.2 tls | EXPOP_HEX_NUMBER { UtStrtoul64 (PrParsertext, 16, &$$);} 185 1.2.10.2 tls ; 186 1.2.10.2 tls %% 187 1.2.10.2 tls 188 1.2.10.2 tls /* 189 1.2.10.2 tls * Local support functions, including parser entry point 190 1.2.10.2 tls */ 191 1.2.10.2 tls #define PR_FIRST_PARSE_OPCODE EXPOP_EOF 192 1.2.10.2 tls #define PR_YYTNAME_START 3 193 1.2.10.2 tls 194 1.2.10.2 tls 195 1.2.10.2 tls /****************************************************************************** 196 1.2.10.2 tls * 197 1.2.10.2 tls * FUNCTION: PrParsererror 198 1.2.10.2 tls * 199 1.2.10.2 tls * PARAMETERS: Message - Parser-generated error message 200 1.2.10.2 tls * 201 1.2.10.2 tls * RETURN: None 202 1.2.10.2 tls * 203 1.2.10.2 tls * DESCRIPTION: Handler for parser errors 204 1.2.10.2 tls * 205 1.2.10.2 tls *****************************************************************************/ 206 1.2.10.2 tls 207 1.2.10.2 tls void 208 1.2.10.2 tls PrParsererror ( 209 1.2.10.2 tls char const *Message) 210 1.2.10.2 tls { 211 1.2.10.2 tls DtError (ASL_ERROR, ASL_MSG_SYNTAX, 212 1.2.10.2 tls NULL, (char *) Message); 213 1.2.10.2 tls } 214 1.2.10.2 tls 215 1.2.10.2 tls 216 1.2.10.2 tls /****************************************************************************** 217 1.2.10.2 tls * 218 1.2.10.2 tls * FUNCTION: PrGetOpName 219 1.2.10.2 tls * 220 1.2.10.2 tls * PARAMETERS: ParseOpcode - Parser token (EXPOP_*) 221 1.2.10.2 tls * 222 1.2.10.2 tls * RETURN: Pointer to the opcode name 223 1.2.10.2 tls * 224 1.2.10.2 tls * DESCRIPTION: Get the ascii name of the parse opcode for debug output 225 1.2.10.2 tls * 226 1.2.10.2 tls *****************************************************************************/ 227 1.2.10.2 tls 228 1.2.10.2 tls char * 229 1.2.10.2 tls PrGetOpName ( 230 1.2.10.2 tls UINT32 ParseOpcode) 231 1.2.10.2 tls { 232 1.2.10.2 tls #ifdef ASL_YYTNAME_START 233 1.2.10.2 tls /* 234 1.2.10.2 tls * First entries (PR_YYTNAME_START) in yytname are special reserved names. 235 1.2.10.2 tls * Ignore first 6 characters of name (EXPOP_) 236 1.2.10.2 tls */ 237 1.2.10.2 tls return ((char *) yytname 238 1.2.10.2 tls [(ParseOpcode - PR_FIRST_PARSE_OPCODE) + PR_YYTNAME_START] + 6); 239 1.2.10.2 tls #else 240 1.2.10.2 tls return ("[Unknown parser generator]"); 241 1.2.10.2 tls #endif 242 1.2.10.2 tls } 243 1.2.10.2 tls 244 1.2.10.2 tls 245 1.2.10.2 tls /****************************************************************************** 246 1.2.10.2 tls * 247 1.2.10.2 tls * FUNCTION: PrEvaluateExpression 248 1.2.10.2 tls * 249 1.2.10.2 tls * PARAMETERS: ExprString - Expression to be evaluated. Must be 250 1.2.10.2 tls * terminated by either a newline or a NUL 251 1.2.10.2 tls * string terminator 252 1.2.10.2 tls * 253 1.2.10.2 tls * RETURN: 64-bit value for the expression 254 1.2.10.2 tls * 255 1.2.10.2 tls * DESCRIPTION: Main entry point for the DT expression parser 256 1.2.10.2 tls * 257 1.2.10.2 tls *****************************************************************************/ 258 1.2.10.2 tls 259 1.2.10.2 tls UINT64 260 1.2.10.2 tls PrEvaluateExpression ( 261 1.2.10.2 tls char *ExprString) 262 1.2.10.2 tls { 263 1.2.10.2 tls 264 1.2.10.2 tls DbgPrint (ASL_DEBUG_OUTPUT, 265 1.2.10.2 tls "**** Input expression: %s\n", ExprString); 266 1.2.10.2 tls 267 1.2.10.2 tls /* Point lexer to the input string */ 268 1.2.10.2 tls 269 1.2.10.2 tls if (PrInitLexer (ExprString)) 270 1.2.10.2 tls { 271 1.2.10.2 tls DtError (ASL_ERROR, ASL_MSG_COMPILER_INTERNAL, 272 1.2.10.2 tls NULL, "Could not initialize lexer"); 273 1.2.10.2 tls return (0); 274 1.2.10.2 tls } 275 1.2.10.2 tls 276 1.2.10.2 tls /* Parse/Evaluate the input string (value returned in PrParserResult) */ 277 1.2.10.2 tls 278 1.2.10.2 tls PrParserparse (); 279 1.2.10.2 tls PrTerminateLexer (); 280 1.2.10.2 tls 281 1.2.10.2 tls DbgPrint (ASL_DEBUG_OUTPUT, 282 1.2.10.2 tls "**** Parser returned value: %u (%8.8X%8.8X)\n", 283 1.2.10.2 tls (UINT32) PrParserResult, ACPI_FORMAT_UINT64 (PrParserResult)); 284 1.2.10.2 tls 285 1.2.10.2 tls return (PrParserResult); 286 1.2.10.2 tls } 287
Indexes created Sun Oct 19 02:09:48 GMT 2025