1 %{
2 /******************************************************************************
3 *
4 * Module Name: dtcompilerparser.y - Bison input file for table compiler parser
5 *
6 *****************************************************************************/
7
8 /*
9 * Copyright (C) 2000 - 2023, Intel Corp.
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions, and the following disclaimer,
17 * without modification.
18 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
19 * substantially similar to the "NO WARRANTY" disclaimer below
20 * ("Disclaimer") and any redistribution must be conditioned upon
21 * including a substantially similar Disclaimer requirement for further
22 * binary redistribution.
23 * 3. Neither the names of the above-listed copyright holders nor the names
24 * of any contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * Alternatively, this software may be distributed under the terms of the
28 * GNU General Public License ("GPL") version 2 as published by the Free
29 * Software Foundation.
30 *
31 * NO WARRANTY
32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
34 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
35 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
36 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
41 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
42 * POSSIBILITY OF SUCH DAMAGES.
43 */
44
45 #include "aslcompiler.h"
46
47
48 #define _COMPONENT DT_COMPILER
49 ACPI_MODULE_NAME ("dtcompilerparser")
50
51 void * AslLocalAllocate (unsigned int Size);
52
53 /* Bison/yacc configuration */
54
55 #undef alloca
56 #define alloca AslLocalAllocate
57
58 int DtCompilerParserlex (void);
59 int DtCompilerParserparse (void);
60 #ifdef YYBYACC
61 struct YYLTYPE;
62 #endif
63 void DtCompilerParsererror (
64 #ifdef YYBYACC
65 struct YYLTYPE *loc,
66 #endif
67 char const *msg);
68 extern char *DtCompilerParsertext;
69 extern DT_FIELD *AslGbl_CurrentField;
70
71 extern int DtLabelByteOffset;
72 extern UINT64 DtCompilerParserlineno; /* Current line number */
73
74 extern UINT32 DtTokenFirstLine;
75 extern UINT32 DtTokenFirstColumn;
76
77 /* Bison/yacc configuration */
78
79 #define yytname DtCompilerParsername
80 #define YYDEBUG 1 /* Enable debug output */
81 #define YYERROR_VERBOSE 1 /* Verbose error messages */
82 #define YYFLAG -32768
83
84 /* Define YYMALLOC/YYFREE to prevent redefinition errors */
85
86 #define YYMALLOC malloc
87 #define YYFREE free
88
89 %}
90
91
92 %union {
93 char *s;
94 DT_FIELD *f;
95 DT_TABLE_UNIT *u;
96 }
97
98
99 %type <f> Table
100 %token <u> DT_PARSEOP_DATA
101 %token <u> DT_PARSEOP_LABEL
102 %token <u> DT_PARSEOP_STRING_DATA
103 %token <u> DT_PARSEOP_LINE_CONTINUATION
104 %type <u> Data
105 %type <u> Datum
106 %type <u> MultiLineData
107 %type <u> MultiLineDataList
108
109
110 %%
111
112 Table
113 :
114 FieldList { }
115 ;
116
117 FieldList
118 : Field FieldList
119 | Field
120 ;
121
122 Field
123 : DT_PARSEOP_LABEL ':' Data { DtCreateField ($1, $3, DtLabelByteOffset); }
124 ;
125
126 Data
127 : MultiLineDataList { $$ = $1; }
128 | Datum { $$ = $1; }
129 | Datum MultiLineDataList { $$ = $1; } /* combine the string with strcat */
130 ;
131
132 MultiLineDataList
133 : MultiLineDataList MultiLineData { $$ = DtCreateTableUnit (AcpiUtStrcat(AcpiUtStrcat($1->Value, " "), $2->Value), $1->Line, $1->Column); } /* combine the strings with strcat */
134 | MultiLineData { $$ = $1; }
135 ;
136
137 MultiLineData
138 : DT_PARSEOP_LINE_CONTINUATION Datum { DbgPrint (ASL_PARSE_OUTPUT, "line continuation detected\n"); $$ = $2; }
139 ;
140
141 Datum
142 : DT_PARSEOP_DATA {
143 DbgPrint (ASL_PARSE_OUTPUT, "parser data: [%s]\n", DtCompilerParserlval.s);
144 $$ = DtCreateTableUnit (AcpiUtStrdup(DtCompilerParserlval.s), DtTokenFirstLine, DtTokenFirstColumn);
145 }
146 | DT_PARSEOP_STRING_DATA {
147 DbgPrint (ASL_PARSE_OUTPUT, "parser string data: [%s]\n", DtCompilerParserlval.s);
148 $$ = DtCreateTableUnit (AcpiUtStrdup(DtCompilerParserlval.s), DtTokenFirstLine, DtTokenFirstColumn);
149 }
150 ;
151
152
153 %%
154
155
156 /*
157 * Local support functions, including parser entry point
158 */
159 /******************************************************************************
160 *
161 * FUNCTION: DtCompilerParsererror
162 *
163 * PARAMETERS: Message - Parser-generated error message
164 *
165 * RETURN: None
166 *
167 * DESCRIPTION: Handler for parser errors
168 *
169 *****************************************************************************/
170
171 void
172 DtCompilerParsererror (
173 #ifdef YYBYACC
174 struct YYLTYPE *loc,
175 #endif
176 char const *Message)
177 {
178 DtError (ASL_ERROR, ASL_MSG_SYNTAX,
179 AslGbl_CurrentField, (char *) Message);
180 }
181
182 int
DtCompilerParserwrap(void)183 DtCompilerParserwrap(void)
184 {
185 return (1);
186 }
187