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Linux/scripts/genksyms/parse.y

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Diff markup

Differences between /scripts/genksyms/parse.y (Version linux-6.12-rc7) and /scripts/genksyms/parse.y (Version linux-3.10.108)


  1 /* SPDX-License-Identifier: GPL-2.0-or-later * !!   1 /* C global declaration parser for genksyms.
  2 /*                                             !!   2    Copyright 1996, 1997 Linux International.
  3  * C global declaration parser for genksyms.   !!   3 
  4  * Copyright 1996, 1997 Linux International.   !!   4    New implementation contributed by Richard Henderson <rth@tamu.edu>
  5  *                                             !!   5    Based on original work by Bjorn Ekwall <bj0rn@blox.se>
  6  * New implementation contributed by Richard H< !!   6 
  7  * Based on original work by Bjorn Ekwall <bj0r !!   7    This file is part of the Linux modutils.
  8  *                                             !!   8 
  9  * This file is part of the Linux modutils.    !!   9    This program is free software; you can redistribute it and/or modify it
 10  */                                            !!  10    under the terms of the GNU General Public License as published by the
                                                   >>  11    Free Software Foundation; either version 2 of the License, or (at your
                                                   >>  12    option) any later version.
                                                   >>  13 
                                                   >>  14    This program is distributed in the hope that it will be useful, but
                                                   >>  15    WITHOUT ANY WARRANTY; without even the implied warranty of
                                                   >>  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
                                                   >>  17    General Public License for more details.
                                                   >>  18 
                                                   >>  19    You should have received a copy of the GNU General Public License
                                                   >>  20    along with this program; if not, write to the Free Software Foundation,
                                                   >>  21    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
                                                   >>  22 
 11                                                    23 
 12 %{                                                 24 %{
 13                                                    25 
 14 #include <assert.h>                                26 #include <assert.h>
 15 #include <stdlib.h>                                27 #include <stdlib.h>
 16 #include <string.h>                                28 #include <string.h>
 17 #include "genksyms.h"                              29 #include "genksyms.h"
 18                                                    30 
 19 static int is_typedef;                             31 static int is_typedef;
 20 static int is_extern;                              32 static int is_extern;
 21 static char *current_name;                         33 static char *current_name;
 22 static struct string_list *decl_spec;              34 static struct string_list *decl_spec;
 23                                                    35 
 24 static void yyerror(const char *);                 36 static void yyerror(const char *);
 25                                                    37 
 26 static inline void                                 38 static inline void
 27 remove_node(struct string_list **p)                39 remove_node(struct string_list **p)
 28 {                                                  40 {
 29   struct string_list *node = *p;                   41   struct string_list *node = *p;
 30   *p = node->next;                                 42   *p = node->next;
 31   free_node(node);                                 43   free_node(node);
 32 }                                                  44 }
 33                                                    45 
 34 static inline void                                 46 static inline void
 35 remove_list(struct string_list **pb, struct st     47 remove_list(struct string_list **pb, struct string_list **pe)
 36 {                                                  48 {
 37   struct string_list *b = *pb, *e = *pe;           49   struct string_list *b = *pb, *e = *pe;
 38   *pb = e;                                         50   *pb = e;
 39   free_list(b, e);                                 51   free_list(b, e);
 40 }                                                  52 }
 41                                                    53 
 42 /* Record definition of a struct/union/enum */     54 /* Record definition of a struct/union/enum */
 43 static void record_compound(struct string_list     55 static void record_compound(struct string_list **keyw,
 44                        struct string_list **id     56                        struct string_list **ident,
 45                        struct string_list **bo     57                        struct string_list **body,
 46                        enum symbol_type type)      58                        enum symbol_type type)
 47 {                                                  59 {
 48         struct string_list *b = *body, *i = *i     60         struct string_list *b = *body, *i = *ident, *r;
 49                                                    61 
 50         if (i->in_source_file) {                   62         if (i->in_source_file) {
 51                 remove_node(keyw);                 63                 remove_node(keyw);
 52                 (*ident)->tag = type;              64                 (*ident)->tag = type;
 53                 remove_list(body, ident);          65                 remove_list(body, ident);
 54                 return;                            66                 return;
 55         }                                          67         }
 56         r = copy_node(i); r->tag = type;           68         r = copy_node(i); r->tag = type;
 57         r->next = (*keyw)->next; *body = r; (*     69         r->next = (*keyw)->next; *body = r; (*keyw)->next = NULL;
 58         add_symbol(i->string, type, b, is_exte     70         add_symbol(i->string, type, b, is_extern);
 59 }                                                  71 }
 60                                                    72 
 61 %}                                                 73 %}
 62                                                    74 
 63 %token ASM_KEYW                                    75 %token ASM_KEYW
 64 %token ATTRIBUTE_KEYW                              76 %token ATTRIBUTE_KEYW
 65 %token AUTO_KEYW                                   77 %token AUTO_KEYW
 66 %token BOOL_KEYW                                   78 %token BOOL_KEYW
 67 %token BUILTIN_INT_KEYW                        << 
 68 %token CHAR_KEYW                                   79 %token CHAR_KEYW
 69 %token CONST_KEYW                                  80 %token CONST_KEYW
 70 %token DOUBLE_KEYW                                 81 %token DOUBLE_KEYW
 71 %token ENUM_KEYW                                   82 %token ENUM_KEYW
 72 %token EXTERN_KEYW                                 83 %token EXTERN_KEYW
 73 %token EXTENSION_KEYW                              84 %token EXTENSION_KEYW
 74 %token FLOAT_KEYW                                  85 %token FLOAT_KEYW
 75 %token INLINE_KEYW                                 86 %token INLINE_KEYW
 76 %token INT_KEYW                                    87 %token INT_KEYW
 77 %token LONG_KEYW                                   88 %token LONG_KEYW
 78 %token REGISTER_KEYW                               89 %token REGISTER_KEYW
 79 %token RESTRICT_KEYW                               90 %token RESTRICT_KEYW
 80 %token SHORT_KEYW                                  91 %token SHORT_KEYW
 81 %token SIGNED_KEYW                                 92 %token SIGNED_KEYW
 82 %token STATIC_KEYW                                 93 %token STATIC_KEYW
 83 %token STATIC_ASSERT_KEYW                      << 
 84 %token STRUCT_KEYW                                 94 %token STRUCT_KEYW
 85 %token TYPEDEF_KEYW                                95 %token TYPEDEF_KEYW
 86 %token UNION_KEYW                                  96 %token UNION_KEYW
 87 %token UNSIGNED_KEYW                               97 %token UNSIGNED_KEYW
 88 %token VOID_KEYW                                   98 %token VOID_KEYW
 89 %token VOLATILE_KEYW                               99 %token VOLATILE_KEYW
 90 %token TYPEOF_KEYW                                100 %token TYPEOF_KEYW
 91 %token VA_LIST_KEYW                            << 
 92                                                   101 
 93 %token EXPORT_SYMBOL_KEYW                         102 %token EXPORT_SYMBOL_KEYW
 94                                                   103 
 95 %token ASM_PHRASE                                 104 %token ASM_PHRASE
 96 %token ATTRIBUTE_PHRASE                           105 %token ATTRIBUTE_PHRASE
 97 %token TYPEOF_PHRASE                           << 
 98 %token BRACE_PHRASE                               106 %token BRACE_PHRASE
 99 %token BRACKET_PHRASE                             107 %token BRACKET_PHRASE
100 %token EXPRESSION_PHRASE                          108 %token EXPRESSION_PHRASE
101 %token STATIC_ASSERT_PHRASE                    << 
102                                                   109 
103 %token CHAR                                       110 %token CHAR
104 %token DOTS                                       111 %token DOTS
105 %token IDENT                                      112 %token IDENT
106 %token INT                                        113 %token INT
107 %token REAL                                       114 %token REAL
108 %token STRING                                     115 %token STRING
109 %token TYPE                                       116 %token TYPE
110 %token OTHER                                      117 %token OTHER
111 %token FILENAME                                   118 %token FILENAME
112                                                   119 
113 %%                                                120 %%
114                                                   121 
115 declaration_seq:                                  122 declaration_seq:
116         declaration                               123         declaration
117         | declaration_seq declaration             124         | declaration_seq declaration
118         ;                                         125         ;
119                                                   126 
120 declaration:                                      127 declaration:
121         { is_typedef = 0; is_extern = 0; curre    128         { is_typedef = 0; is_extern = 0; current_name = NULL; decl_spec = NULL; }
122         declaration1                              129         declaration1
123         { free_list(*$2, NULL); *$2 = NULL; }     130         { free_list(*$2, NULL); *$2 = NULL; }
124         ;                                         131         ;
125                                                   132 
126 declaration1:                                     133 declaration1:
127         EXTENSION_KEYW TYPEDEF_KEYW { is_typed    134         EXTENSION_KEYW TYPEDEF_KEYW { is_typedef = 1; } simple_declaration
128                 { $$ = $4; }                      135                 { $$ = $4; }
129         | TYPEDEF_KEYW { is_typedef = 1; } sim    136         | TYPEDEF_KEYW { is_typedef = 1; } simple_declaration
130                 { $$ = $3; }                      137                 { $$ = $3; }
131         | simple_declaration                      138         | simple_declaration
132         | function_definition                     139         | function_definition
133         | asm_definition                          140         | asm_definition
134         | export_definition                       141         | export_definition
135         | static_assert                        << 
136         | error ';'                               142         | error ';'                             { $$ = $2; }
137         | error '}'                               143         | error '}'                             { $$ = $2; }
138         ;                                         144         ;
139                                                   145 
140 simple_declaration:                               146 simple_declaration:
141         decl_specifier_seq_opt init_declarator    147         decl_specifier_seq_opt init_declarator_list_opt ';'
142                 { if (current_name) {             148                 { if (current_name) {
143                     struct string_list *decl =    149                     struct string_list *decl = (*$3)->next;
144                     (*$3)->next = NULL;           150                     (*$3)->next = NULL;
145                     add_symbol(current_name,      151                     add_symbol(current_name,
146                                is_typedef ? SY    152                                is_typedef ? SYM_TYPEDEF : SYM_NORMAL,
147                                decl, is_extern    153                                decl, is_extern);
148                     current_name = NULL;          154                     current_name = NULL;
149                   }                               155                   }
150                   $$ = $3;                        156                   $$ = $3;
151                 }                                 157                 }
152         ;                                         158         ;
153                                                   159 
154 init_declarator_list_opt:                         160 init_declarator_list_opt:
155         /* empty */                               161         /* empty */                             { $$ = NULL; }
156         | init_declarator_list                    162         | init_declarator_list
157         ;                                         163         ;
158                                                   164 
159 init_declarator_list:                             165 init_declarator_list:
160         init_declarator                           166         init_declarator
161                 { struct string_list *decl = *    167                 { struct string_list *decl = *$1;
162                   *$1 = NULL;                     168                   *$1 = NULL;
163                   add_symbol(current_name,        169                   add_symbol(current_name,
164                              is_typedef ? SYM_    170                              is_typedef ? SYM_TYPEDEF : SYM_NORMAL, decl, is_extern);
165                   current_name = NULL;            171                   current_name = NULL;
166                   $$ = $1;                        172                   $$ = $1;
167                 }                                 173                 }
168         | init_declarator_list ',' init_declar    174         | init_declarator_list ',' init_declarator
169                 { struct string_list *decl = *    175                 { struct string_list *decl = *$3;
170                   *$3 = NULL;                     176                   *$3 = NULL;
171                   free_list(*$2, NULL);           177                   free_list(*$2, NULL);
172                   *$2 = decl_spec;                178                   *$2 = decl_spec;
173                   add_symbol(current_name,        179                   add_symbol(current_name,
174                              is_typedef ? SYM_    180                              is_typedef ? SYM_TYPEDEF : SYM_NORMAL, decl, is_extern);
175                   current_name = NULL;            181                   current_name = NULL;
176                   $$ = $3;                        182                   $$ = $3;
177                 }                                 183                 }
178         ;                                         184         ;
179                                                   185 
180 init_declarator:                                  186 init_declarator:
181         declarator asm_phrase_opt attribute_op    187         declarator asm_phrase_opt attribute_opt initializer_opt
182                 { $$ = $4 ? $4 : $3 ? $3 : $2     188                 { $$ = $4 ? $4 : $3 ? $3 : $2 ? $2 : $1; }
183         ;                                         189         ;
184                                                   190 
185 /* Hang on to the specifiers so that we can re    191 /* Hang on to the specifiers so that we can reuse them.  */
186 decl_specifier_seq_opt:                           192 decl_specifier_seq_opt:
187         /* empty */                               193         /* empty */                             { decl_spec = NULL; }
188         | decl_specifier_seq                      194         | decl_specifier_seq
189         ;                                         195         ;
190                                                   196 
191 decl_specifier_seq:                               197 decl_specifier_seq:
192         decl_specifier                            198         decl_specifier                          { decl_spec = *$1; }
193         | decl_specifier_seq decl_specifier       199         | decl_specifier_seq decl_specifier     { decl_spec = *$2; }
194         ;                                         200         ;
195                                                   201 
196 decl_specifier:                                   202 decl_specifier:
197         storage_class_specifier                   203         storage_class_specifier
198                 { /* Version 2 checksumming ig    204                 { /* Version 2 checksumming ignores storage class, as that
199                      is really irrelevant to t    205                      is really irrelevant to the linkage.  */
200                   remove_node($1);                206                   remove_node($1);
201                   $$ = $1;                        207                   $$ = $1;
202                 }                                 208                 }
203         | type_specifier                          209         | type_specifier
204         ;                                         210         ;
205                                                   211 
206 storage_class_specifier:                          212 storage_class_specifier:
207         AUTO_KEYW                                 213         AUTO_KEYW
208         | REGISTER_KEYW                           214         | REGISTER_KEYW
209         | STATIC_KEYW                             215         | STATIC_KEYW
210         | EXTERN_KEYW   { is_extern = 1; $$ =     216         | EXTERN_KEYW   { is_extern = 1; $$ = $1; }
211         | INLINE_KEYW   { is_extern = 0; $$ =     217         | INLINE_KEYW   { is_extern = 0; $$ = $1; }
212         ;                                         218         ;
213                                                   219 
214 type_specifier:                                   220 type_specifier:
215         simple_type_specifier                     221         simple_type_specifier
216         | cvar_qualifier                          222         | cvar_qualifier
217         | TYPEOF_KEYW '(' parameter_declaratio !! 223         | TYPEOF_KEYW '(' decl_specifier_seq '*' ')'
218         | TYPEOF_PHRASE                        !! 224         | TYPEOF_KEYW '(' decl_specifier_seq ')'
219                                                   225 
220         /* References to s/u/e's defined elsew    226         /* References to s/u/e's defined elsewhere.  Rearrange things
221            so that it is easier to expand the     227            so that it is easier to expand the definition fully later.  */
222         | STRUCT_KEYW IDENT                       228         | STRUCT_KEYW IDENT
223                 { remove_node($1); (*$2)->tag     229                 { remove_node($1); (*$2)->tag = SYM_STRUCT; $$ = $2; }
224         | UNION_KEYW IDENT                        230         | UNION_KEYW IDENT
225                 { remove_node($1); (*$2)->tag     231                 { remove_node($1); (*$2)->tag = SYM_UNION; $$ = $2; }
226         | ENUM_KEYW IDENT                         232         | ENUM_KEYW IDENT
227                 { remove_node($1); (*$2)->tag     233                 { remove_node($1); (*$2)->tag = SYM_ENUM; $$ = $2; }
228                                                   234 
229         /* Full definitions of an s/u/e.  Reco    235         /* Full definitions of an s/u/e.  Record it.  */
230         | STRUCT_KEYW IDENT class_body            236         | STRUCT_KEYW IDENT class_body
231                 { record_compound($1, $2, $3,     237                 { record_compound($1, $2, $3, SYM_STRUCT); $$ = $3; }
232         | UNION_KEYW IDENT class_body             238         | UNION_KEYW IDENT class_body
233                 { record_compound($1, $2, $3,     239                 { record_compound($1, $2, $3, SYM_UNION); $$ = $3; }
234         | ENUM_KEYW IDENT enum_body               240         | ENUM_KEYW IDENT enum_body
235                 { record_compound($1, $2, $3,     241                 { record_compound($1, $2, $3, SYM_ENUM); $$ = $3; }
236         /*                                        242         /*
237          * Anonymous enum definition. Tell add    243          * Anonymous enum definition. Tell add_symbol() to restart its counter.
238          */                                       244          */
239         | ENUM_KEYW enum_body                     245         | ENUM_KEYW enum_body
240                 { add_symbol(NULL, SYM_ENUM, N    246                 { add_symbol(NULL, SYM_ENUM, NULL, 0); $$ = $2; }
241         /* Anonymous s/u definitions.  Nothing    247         /* Anonymous s/u definitions.  Nothing needs doing.  */
242         | STRUCT_KEYW class_body                  248         | STRUCT_KEYW class_body                        { $$ = $2; }
243         | UNION_KEYW class_body                   249         | UNION_KEYW class_body                         { $$ = $2; }
244         ;                                         250         ;
245                                                   251 
246 simple_type_specifier:                            252 simple_type_specifier:
247         CHAR_KEYW                                 253         CHAR_KEYW
248         | SHORT_KEYW                              254         | SHORT_KEYW
249         | INT_KEYW                                255         | INT_KEYW
250         | LONG_KEYW                               256         | LONG_KEYW
251         | SIGNED_KEYW                             257         | SIGNED_KEYW
252         | UNSIGNED_KEYW                           258         | UNSIGNED_KEYW
253         | FLOAT_KEYW                              259         | FLOAT_KEYW
254         | DOUBLE_KEYW                             260         | DOUBLE_KEYW
255         | VOID_KEYW                               261         | VOID_KEYW
256         | BOOL_KEYW                               262         | BOOL_KEYW
257         | VA_LIST_KEYW                         << 
258         | BUILTIN_INT_KEYW                     << 
259         | TYPE                  { (*$1)->tag =    263         | TYPE                  { (*$1)->tag = SYM_TYPEDEF; $$ = $1; }
260         ;                                         264         ;
261                                                   265 
262 ptr_operator:                                     266 ptr_operator:
263         '*' cvar_qualifier_seq_opt                267         '*' cvar_qualifier_seq_opt
264                 { $$ = $2 ? $2 : $1; }            268                 { $$ = $2 ? $2 : $1; }
265         ;                                         269         ;
266                                                   270 
267 cvar_qualifier_seq_opt:                           271 cvar_qualifier_seq_opt:
268         /* empty */                               272         /* empty */                                     { $$ = NULL; }
269         | cvar_qualifier_seq                      273         | cvar_qualifier_seq
270         ;                                         274         ;
271                                                   275 
272 cvar_qualifier_seq:                               276 cvar_qualifier_seq:
273         cvar_qualifier                            277         cvar_qualifier
274         | cvar_qualifier_seq cvar_qualifier       278         | cvar_qualifier_seq cvar_qualifier             { $$ = $2; }
275         ;                                         279         ;
276                                                   280 
277 cvar_qualifier:                                   281 cvar_qualifier:
278         CONST_KEYW | VOLATILE_KEYW | ATTRIBUTE    282         CONST_KEYW | VOLATILE_KEYW | ATTRIBUTE_PHRASE
279         | RESTRICT_KEYW                           283         | RESTRICT_KEYW
280                 { /* restrict has no effect in    284                 { /* restrict has no effect in prototypes so ignore it */
281                   remove_node($1);                285                   remove_node($1);
282                   $$ = $1;                        286                   $$ = $1;
283                 }                                 287                 }
284         ;                                         288         ;
285                                                   289 
286 declarator:                                       290 declarator:
287         ptr_operator declarator                   291         ptr_operator declarator                 { $$ = $2; }
288         | direct_declarator                       292         | direct_declarator
289         ;                                         293         ;
290                                                   294 
291 direct_declarator:                                295 direct_declarator:
292         IDENT                                     296         IDENT
293                 { if (current_name != NULL) {     297                 { if (current_name != NULL) {
294                     error_with_pos("unexpected    298                     error_with_pos("unexpected second declaration name");
295                     YYERROR;                      299                     YYERROR;
296                   } else {                        300                   } else {
297                     current_name = (*$1)->stri    301                     current_name = (*$1)->string;
298                     $$ = $1;                      302                     $$ = $1;
299                   }                               303                   }
300                 }                                 304                 }
301         | TYPE                                 << 
302                 { if (current_name != NULL) {  << 
303                     error_with_pos("unexpected << 
304                     YYERROR;                   << 
305                   } else {                     << 
306                     current_name = (*$1)->stri << 
307                     $$ = $1;                   << 
308                   }                            << 
309                 }                              << 
310         | direct_declarator '(' parameter_decl    305         | direct_declarator '(' parameter_declaration_clause ')'
311                 { $$ = $4; }                      306                 { $$ = $4; }
312         | direct_declarator '(' error ')'         307         | direct_declarator '(' error ')'
313                 { $$ = $4; }                      308                 { $$ = $4; }
314         | direct_declarator BRACKET_PHRASE        309         | direct_declarator BRACKET_PHRASE
315                 { $$ = $2; }                      310                 { $$ = $2; }
316         | '(' declarator ')'                      311         | '(' declarator ')'
317                 { $$ = $3; }                      312                 { $$ = $3; }
                                                   >> 313         | '(' error ')'
                                                   >> 314                 { $$ = $3; }
318         ;                                         315         ;
319                                                   316 
320 /* Nested declarators differ from regular decl    317 /* Nested declarators differ from regular declarators in that they do
321    not record the symbols they find in the glo    318    not record the symbols they find in the global symbol table.  */
322 nested_declarator:                                319 nested_declarator:
323         ptr_operator nested_declarator            320         ptr_operator nested_declarator          { $$ = $2; }
324         | direct_nested_declarator                321         | direct_nested_declarator
325         ;                                         322         ;
326                                                   323 
327 direct_nested_declarator:                         324 direct_nested_declarator:
328         IDENT                                     325         IDENT
329         | TYPE                                    326         | TYPE
330         | direct_nested_declarator '(' paramet    327         | direct_nested_declarator '(' parameter_declaration_clause ')'
331                 { $$ = $4; }                      328                 { $$ = $4; }
332         | direct_nested_declarator '(' error '    329         | direct_nested_declarator '(' error ')'
333                 { $$ = $4; }                      330                 { $$ = $4; }
334         | direct_nested_declarator BRACKET_PHR    331         | direct_nested_declarator BRACKET_PHRASE
335                 { $$ = $2; }                      332                 { $$ = $2; }
336         | '(' nested_declarator ')'               333         | '(' nested_declarator ')'
337                 { $$ = $3; }                      334                 { $$ = $3; }
338         | '(' error ')'                           335         | '(' error ')'
339                 { $$ = $3; }                      336                 { $$ = $3; }
340         ;                                         337         ;
341                                                   338 
342 parameter_declaration_clause:                     339 parameter_declaration_clause:
343         parameter_declaration_list_opt DOTS       340         parameter_declaration_list_opt DOTS             { $$ = $2; }
344         | parameter_declaration_list_opt          341         | parameter_declaration_list_opt
345         | parameter_declaration_list ',' DOTS     342         | parameter_declaration_list ',' DOTS           { $$ = $3; }
346         ;                                         343         ;
347                                                   344 
348 parameter_declaration_list_opt:                   345 parameter_declaration_list_opt:
349         /* empty */                               346         /* empty */                                     { $$ = NULL; }
350         | parameter_declaration_list              347         | parameter_declaration_list
351         ;                                         348         ;
352                                                   349 
353 parameter_declaration_list:                       350 parameter_declaration_list:
354         parameter_declaration                     351         parameter_declaration
355         | parameter_declaration_list ',' param    352         | parameter_declaration_list ',' parameter_declaration
356                 { $$ = $3; }                      353                 { $$ = $3; }
357         ;                                         354         ;
358                                                   355 
359 parameter_declaration:                            356 parameter_declaration:
360         decl_specifier_seq m_abstract_declarat    357         decl_specifier_seq m_abstract_declarator
361                 { $$ = $2 ? $2 : $1; }            358                 { $$ = $2 ? $2 : $1; }
362         ;                                         359         ;
363                                                   360 
364 m_abstract_declarator:                            361 m_abstract_declarator:
365         ptr_operator m_abstract_declarator        362         ptr_operator m_abstract_declarator
366                 { $$ = $2 ? $2 : $1; }            363                 { $$ = $2 ? $2 : $1; }
367         | direct_m_abstract_declarator            364         | direct_m_abstract_declarator
368         ;                                         365         ;
369                                                   366 
370 direct_m_abstract_declarator:                     367 direct_m_abstract_declarator:
371         /* empty */                               368         /* empty */                                     { $$ = NULL; }
372         | IDENT                                   369         | IDENT
373                 { /* For version 2 checksums,     370                 { /* For version 2 checksums, we don't want to remember
374                      private parameter names.     371                      private parameter names.  */
375                   remove_node($1);                372                   remove_node($1);
376                   $$ = $1;                        373                   $$ = $1;
377                 }                                 374                 }
378         /* This wasn't really a typedef name b    375         /* This wasn't really a typedef name but an identifier that
379            shadows one.  */                       376            shadows one.  */
380         | TYPE                                    377         | TYPE
381                 { remove_node($1);                378                 { remove_node($1);
382                   $$ = $1;                        379                   $$ = $1;
383                 }                                 380                 }
384         | direct_m_abstract_declarator '(' par    381         | direct_m_abstract_declarator '(' parameter_declaration_clause ')'
385                 { $$ = $4; }                      382                 { $$ = $4; }
386         | direct_m_abstract_declarator '(' err    383         | direct_m_abstract_declarator '(' error ')'
387                 { $$ = $4; }                      384                 { $$ = $4; }
388         | direct_m_abstract_declarator BRACKET    385         | direct_m_abstract_declarator BRACKET_PHRASE
389                 { $$ = $2; }                      386                 { $$ = $2; }
390         | '(' m_abstract_declarator ')'           387         | '(' m_abstract_declarator ')'
391                 { $$ = $3; }                      388                 { $$ = $3; }
392         | '(' error ')'                           389         | '(' error ')'
393                 { $$ = $3; }                      390                 { $$ = $3; }
394         ;                                         391         ;
395                                                   392 
396 function_definition:                              393 function_definition:
397         decl_specifier_seq_opt declarator BRAC    394         decl_specifier_seq_opt declarator BRACE_PHRASE
398                 { struct string_list *decl = *    395                 { struct string_list *decl = *$2;
399                   *$2 = NULL;                     396                   *$2 = NULL;
400                   add_symbol(current_name, SYM    397                   add_symbol(current_name, SYM_NORMAL, decl, is_extern);
401                   $$ = $3;                        398                   $$ = $3;
402                 }                                 399                 }
403         ;                                         400         ;
404                                                   401 
405 initializer_opt:                                  402 initializer_opt:
406         /* empty */                               403         /* empty */                                     { $$ = NULL; }
407         | initializer                             404         | initializer
408         ;                                         405         ;
409                                                   406 
410 /* We never care about the contents of an init    407 /* We never care about the contents of an initializer.  */
411 initializer:                                      408 initializer:
412         '=' EXPRESSION_PHRASE                     409         '=' EXPRESSION_PHRASE
413                 { remove_list($2, &(*$1)->next    410                 { remove_list($2, &(*$1)->next); $$ = $2; }
414         ;                                         411         ;
415                                                   412 
416 class_body:                                       413 class_body:
417         '{' member_specification_opt '}'          414         '{' member_specification_opt '}'                { $$ = $3; }
418         | '{' error '}'                           415         | '{' error '}'                                 { $$ = $3; }
419         ;                                         416         ;
420                                                   417 
421 member_specification_opt:                         418 member_specification_opt:
422         /* empty */                               419         /* empty */                                     { $$ = NULL; }
423         | member_specification                    420         | member_specification
424         ;                                         421         ;
425                                                   422 
426 member_specification:                             423 member_specification:
427         member_declaration                        424         member_declaration
428         | member_specification member_declarat    425         | member_specification member_declaration       { $$ = $2; }
429         ;                                         426         ;
430                                                   427 
431 member_declaration:                               428 member_declaration:
432         decl_specifier_seq_opt member_declarat    429         decl_specifier_seq_opt member_declarator_list_opt ';'
433                 { $$ = $3; }                      430                 { $$ = $3; }
434         | error ';'                               431         | error ';'
435                 { $$ = $2; }                      432                 { $$ = $2; }
436         ;                                         433         ;
437                                                   434 
438 member_declarator_list_opt:                       435 member_declarator_list_opt:
439         /* empty */                               436         /* empty */                                     { $$ = NULL; }
440         | member_declarator_list                  437         | member_declarator_list
441         ;                                         438         ;
442                                                   439 
443 member_declarator_list:                           440 member_declarator_list:
444         member_declarator                         441         member_declarator
445         | member_declarator_list ',' member_de    442         | member_declarator_list ',' member_declarator  { $$ = $3; }
446         ;                                         443         ;
447                                                   444 
448 member_declarator:                                445 member_declarator:
449         nested_declarator attribute_opt           446         nested_declarator attribute_opt                 { $$ = $2 ? $2 : $1; }
450         | IDENT member_bitfield_declarator        447         | IDENT member_bitfield_declarator              { $$ = $2; }
451         | member_bitfield_declarator              448         | member_bitfield_declarator
452         ;                                         449         ;
453                                                   450 
454 member_bitfield_declarator:                       451 member_bitfield_declarator:
455         ':' EXPRESSION_PHRASE                     452         ':' EXPRESSION_PHRASE                           { $$ = $2; }
456         ;                                         453         ;
457                                                   454 
458 attribute_opt:                                    455 attribute_opt:
459         /* empty */                               456         /* empty */                                     { $$ = NULL; }
460         | attribute_opt ATTRIBUTE_PHRASE          457         | attribute_opt ATTRIBUTE_PHRASE
461         ;                                         458         ;
462                                                   459 
463 enum_body:                                        460 enum_body:
464         '{' enumerator_list '}'                   461         '{' enumerator_list '}'                         { $$ = $3; }
465         | '{' enumerator_list ',' '}'             462         | '{' enumerator_list ',' '}'                   { $$ = $4; }
466          ;                                        463          ;
467                                                   464 
468 enumerator_list:                                  465 enumerator_list:
469         enumerator                                466         enumerator
470         | enumerator_list ',' enumerator          467         | enumerator_list ',' enumerator
471                                                   468 
472 enumerator:                                       469 enumerator:
473         IDENT                                     470         IDENT
474                 {                                 471                 {
475                         const char *name = str    472                         const char *name = strdup((*$1)->string);
476                         add_symbol(name, SYM_E    473                         add_symbol(name, SYM_ENUM_CONST, NULL, 0);
477                 }                                 474                 }
478         | IDENT '=' EXPRESSION_PHRASE             475         | IDENT '=' EXPRESSION_PHRASE
479                 {                                 476                 {
480                         const char *name = str    477                         const char *name = strdup((*$1)->string);
481                         struct string_list *ex    478                         struct string_list *expr = copy_list_range(*$3, *$2);
482                         add_symbol(name, SYM_E    479                         add_symbol(name, SYM_ENUM_CONST, expr, 0);
483                 }                                 480                 }
484                                                   481 
485 asm_definition:                                   482 asm_definition:
486         ASM_PHRASE ';'                            483         ASM_PHRASE ';'                                  { $$ = $2; }
487         ;                                         484         ;
488                                                   485 
489 asm_phrase_opt:                                   486 asm_phrase_opt:
490         /* empty */                               487         /* empty */                                     { $$ = NULL; }
491         | ASM_PHRASE                              488         | ASM_PHRASE
492         ;                                         489         ;
493                                                   490 
494 export_definition:                                491 export_definition:
495         EXPORT_SYMBOL_KEYW '(' IDENT ')' ';'      492         EXPORT_SYMBOL_KEYW '(' IDENT ')' ';'
496                 { export_symbol((*$3)->string)    493                 { export_symbol((*$3)->string); $$ = $5; }
497         ;                                         494         ;
498                                                   495 
499 /* Ignore any module scoped _Static_assert(... << 
500 static_assert:                                 << 
501         STATIC_ASSERT_PHRASE ';'               << 
502         ;                                      << 
503                                                   496 
504 %%                                                497 %%
505                                                   498 
506 static void                                       499 static void
507 yyerror(const char *e)                            500 yyerror(const char *e)
508 {                                                 501 {
509   error_with_pos("%s", e);                        502   error_with_pos("%s", e);
510 }                                                 503 }
                                                      

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