1 /******************************************************************************
2 *
3 * Module Name: preprocess.h - header for iASL Preprocessor
4 *
5 *****************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2014, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
44 #define __PREPROCESS_H__
45
46 #ifndef _PREPROCESS
47 #define _PREPROCESS
48
49 #undef PR_EXTERN
50
51 #ifdef _DECLARE_PR_GLOBALS
52 #define PR_EXTERN
53 #define PR_INIT_GLOBAL(a,b) (a)=(b)
54 #else
55 #define PR_EXTERN extern
56 #define PR_INIT_GLOBAL(a,b) (a)
57 #endif
58
59
60 /*
61 * Configuration
62 */
63 #define PR_MAX_MACRO_ARGS 32 /* Max number of macro args */
64 #define PR_MAX_ARG_INSTANCES 24 /* Max instances of any one arg */
65 #define PR_LINES_PER_BLOCK 4096 /* Max input source lines per block */
66
67
68 /*
69 * Local defines and macros
70 */
71 #define PR_TOKEN_SEPARATORS " ,(){}\t\n"
72 #define PR_MACRO_SEPARATORS " ,(){}~!*/%+-<>=&^|\"\t\n"
73 #define PR_MACRO_ARGUMENTS " ,\t\n"
74 #define PR_EXPR_SEPARATORS " ,(){}~!*/%+-<>=&^|\"\t\n"
75
76 #define PR_PREFIX_ID "Pr(%.4u) - " /* Used for debug output */
77
78 #define THIS_TOKEN_OFFSET(t) ((t-Gbl_MainTokenBuffer) + 1)
79
80
81 /*
82 * Preprocessor structures
83 */
84 typedef struct pr_macro_arg
85 {
86 char *Name;
87 UINT32 Offset[PR_MAX_ARG_INSTANCES];
88 UINT16 UseCount;
89
90 } PR_MACRO_ARG;
91
92 typedef struct pr_define_info
93 {
94 struct pr_define_info *Previous;
95 struct pr_define_info *Next;
96 char *Identifier;
97 char *Replacement;
98 char *Body; /* Macro body */
99 PR_MACRO_ARG *Args; /* Macro arg list */
100 UINT16 ArgCount; /* Macro arg count */
101 BOOLEAN Persist; /* Keep for entire compiler run */
102
103 } PR_DEFINE_INFO;
104
105 typedef struct pr_directive_info
106 {
107 char *Name; /* Directive name */
108 UINT8 ArgCount; /* Required # of args */
109
110 } PR_DIRECTIVE_INFO;
111
112 typedef struct pr_operator_info
113 {
114 char *Op;
115
116 } PR_OPERATOR_INFO;
117
118 typedef struct pr_file_node
119 {
120 struct pr_file_node *Next;
121 FILE *File;
122 char *Filename;
123 UINT32 CurrentLineNumber;
124
125 } PR_FILE_NODE;
126
127 #define MAX_ARGUMENT_LENGTH 24
128
129 typedef struct directive_info
130 {
131 struct directive_info *Next;
132 char Argument[MAX_ARGUMENT_LENGTH];
133 int Directive;
134 BOOLEAN IgnoringThisCodeBlock;
135
136 } DIRECTIVE_INFO;
137
138
139 /*
140 * Globals
141 */
142 #if 0 /* TBD for macros */
143 PR_EXTERN char PR_INIT_GLOBAL (*XXXEvalBuffer, NULL); /* [ASL_LINE_BUFFER_SIZE]; */
144 #endif
145
146 PR_EXTERN char PR_INIT_GLOBAL (*Gbl_MainTokenBuffer, NULL); /* [ASL_LINE_BUFFER_SIZE]; */
147 PR_EXTERN char PR_INIT_GLOBAL (*Gbl_MacroTokenBuffer, NULL); /* [ASL_LINE_BUFFER_SIZE]; */
148 PR_EXTERN char PR_INIT_GLOBAL (*Gbl_ExpressionTokenBuffer, NULL); /* [ASL_LINE_BUFFER_SIZE]; */
149
150 PR_EXTERN UINT32 Gbl_PreprocessorLineNumber;
151 PR_EXTERN int Gbl_IfDepth;
152 PR_EXTERN PR_FILE_NODE *Gbl_InputFileList;
153 PR_EXTERN PR_DEFINE_INFO PR_INIT_GLOBAL (*Gbl_DefineList, NULL);
154 PR_EXTERN BOOLEAN PR_INIT_GLOBAL (Gbl_PreprocessorError, FALSE);
155 PR_EXTERN BOOLEAN PR_INIT_GLOBAL (Gbl_IgnoringThisCodeBlock, FALSE);
156 PR_EXTERN DIRECTIVE_INFO PR_INIT_GLOBAL (*Gbl_DirectiveStack, NULL);
157
158 /*
159 * prscan - Preprocessor entry
160 */
161 void
162 PrInitializePreprocessor (
163 void);
164
165 void
166 PrInitializeGlobals (
167 void);
168
169 void
170 PrTerminatePreprocessor (
171 void);
172
173 void
174 PrDoPreprocess (
175 void);
176
177 UINT64
178 PrIsDefined (
179 char *Identifier);
180
181 UINT64
182 PrResolveDefine (
183 char *Identifier);
184
185 int
186 PrInitLexer (
187 char *String);
188
189 void
190 PrTerminateLexer (
191 void);
192
193
194 /*
195 * prmacros - Support for #defines and macros
196 */
197 void
198 PrDumpPredefinedNames (
199 void);
200
201 PR_DEFINE_INFO *
202 PrAddDefine (
203 char *Token,
204 char *Token2,
205 BOOLEAN Persist);
206
207 void
208 PrRemoveDefine (
209 char *DefineName);
210
211 PR_DEFINE_INFO *
212 PrMatchDefine (
213 char *MatchString);
214
215 void
216 PrAddMacro (
217 char *Name,
218 char **Next);
219
220 void
221 PrDoMacroInvocation (
222 char *TokenBuffer,
223 char *MacroStart,
224 PR_DEFINE_INFO *DefineInfo,
225 char **Next);
226
227
228 /*
229 * prexpress - #if expression support
230 */
231 ACPI_STATUS
232 PrResolveIntegerExpression (
233 char *Line,
234 UINT64 *ReturnValue);
235
236 char *
237 PrPrioritizeExpression (
238 char *OriginalLine);
239
240 /*
241 * prparser - lex/yacc expression parser
242 */
243 UINT64
244 PrEvaluateExpression (
245 char *ExprString);
246
247
248 /*
249 * prutils - Preprocesor utilities
250 */
251 char *
252 PrGetNextToken (
253 char *Buffer,
254 char *MatchString,
255 char **Next);
256
257 void
258 PrError (
259 UINT8 Level,
260 UINT8 MessageId,
261 UINT32 Column);
262
263 void
264 PrReplaceData (
265 char *Buffer,
266 UINT32 LengthToRemove,
267 char *BufferToAdd,
268 UINT32 LengthToAdd);
269
270 void
271 PrOpenIncludeFile (
272 char *Filename);
273
274 FILE *
275 PrOpenIncludeWithPrefix (
276 char *PrefixDir,
277 char *Filename);
278
279 void
280 PrPushInputFileStack (
281 FILE *InputFile,
282 char *Filename);
283
284 BOOLEAN
285 PrPopInputFileStack (
286 void);
287
288 #endif