1 /* Process source files and output type information.
2 Copyright (C) 2002 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 2, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING. If not, write to the Free
18 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
21 /* A file position, mostly for error messages.
22 The FILE element may be compared using pointer equality. */
28 /* Kinds of types we can understand. */
40 /* A way to pass data through to the output end. */
41 typedef struct options {
47 typedef struct pair *pair_p;
48 typedef struct type *type_p;
49 typedef unsigned lang_bitmap;
51 /* A name and a type. */
60 /* A description of a type. */
95 ((x)->kind == TYPE_UNION || \
96 ((x)->kind == TYPE_LANG_STRUCT \
97 && (x)->u.s.lang_struct->kind == TYPE_UNION))
98 #define UNION_OR_STRUCT_P(x) \
99 ((x)->kind == TYPE_UNION \
100 || (x)->kind == TYPE_STRUCT \
101 || (x)->kind == TYPE_LANG_STRUCT)
103 /* The one and only TYPE_STRING. */
104 extern struct type string_type;
106 /* Variables used to communicate between the lexer and the parser. */
107 extern int lexer_toplevel_done;
108 extern struct fileloc lexer_line;
110 /* Print an error message. */
111 extern void error_at_line
112 PARAMS ((struct fileloc *pos, const char *msg, ...)) ATTRIBUTE_PRINTF_2;
114 /* Combines xmalloc() and vasprintf(). */
115 extern int xvasprintf PARAMS ((char **, const char *, va_list))
116 ATTRIBUTE_PRINTF (2, 0);
117 /* Like the above, but more convenient for quick coding. */
118 extern char * xasprintf PARAMS ((const char *, ...))
121 /* Constructor routines for types. */
122 extern void do_typedef PARAMS ((const char *s, type_p t, struct fileloc *pos));
123 extern type_p resolve_typedef PARAMS ((const char *s, struct fileloc *pos));
124 extern void new_structure PARAMS ((const char *name, int isunion,
125 struct fileloc *pos, pair_p fields,
127 extern type_p find_structure PARAMS ((const char *s, int isunion));
128 extern type_p create_scalar_type PARAMS ((const char *name, size_t name_len));
129 extern type_p create_pointer PARAMS ((type_p t));
130 extern type_p create_array PARAMS ((type_p t, const char *len));
131 extern type_p adjust_field_type PARAMS ((type_p, options_p));
132 extern void note_variable PARAMS ((const char *s, type_p t, options_p o,
133 struct fileloc *pos));
134 extern void note_yacc_type PARAMS ((options_p o, pair_p fields,
135 pair_p typeinfo, struct fileloc *pos));
137 /* Lexer and parser routines, most automatically generated. */
138 extern int yylex PARAMS((void));
139 extern void yyerror PARAMS ((const char *));
140 extern int yyparse PARAMS ((void));
141 extern void parse_file PARAMS ((const char *name));
143 /* Output file handling. */
145 /* Structure representing an output file. */
155 typedef struct outf * outf_p;
157 /* The output header file that is included into pretty much every
159 extern outf_p header_file;
161 /* An output file, suitable for definitions, that can see declarations
162 made in INPUT_FILE and is linked into every language that uses
164 extern outf_p get_output_file_with_visibility
165 PARAMS ((const char *input_file));
166 const char *get_output_file_name PARAMS ((const char *));
168 /* A list of output files suitable for definitions. There is one
169 BASE_FILES entry for each language. */
170 extern outf_p base_files[];
172 /* A bitmap that specifies which of BASE_FILES should be used to
173 output a definition that is different for each language and must be
174 defined once in each language that uses INPUT_FILE. */
175 extern lang_bitmap get_base_file_bitmap PARAMS ((const char *input_file));
177 /* Print, like fprintf, to O. */
178 extern void oprintf PARAMS ((outf_p o, const char *S, ...))