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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-5.2.21)


  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                            79 %token BUILTIN_INT_KEYW
 68 %token CHAR_KEYW                                   80 %token CHAR_KEYW
 69 %token CONST_KEYW                                  81 %token CONST_KEYW
 70 %token DOUBLE_KEYW                                 82 %token DOUBLE_KEYW
 71 %token ENUM_KEYW                                   83 %token ENUM_KEYW
 72 %token EXTERN_KEYW                                 84 %token EXTERN_KEYW
 73 %token EXTENSION_KEYW                              85 %token EXTENSION_KEYW
 74 %token FLOAT_KEYW                                  86 %token FLOAT_KEYW
 75 %token INLINE_KEYW                                 87 %token INLINE_KEYW
 76 %token INT_KEYW                                    88 %token INT_KEYW
 77 %token LONG_KEYW                                   89 %token LONG_KEYW
 78 %token REGISTER_KEYW                               90 %token REGISTER_KEYW
 79 %token RESTRICT_KEYW                               91 %token RESTRICT_KEYW
 80 %token SHORT_KEYW                                  92 %token SHORT_KEYW
 81 %token SIGNED_KEYW                                 93 %token SIGNED_KEYW
 82 %token STATIC_KEYW                                 94 %token STATIC_KEYW
 83 %token STATIC_ASSERT_KEYW                      << 
 84 %token STRUCT_KEYW                                 95 %token STRUCT_KEYW
 85 %token TYPEDEF_KEYW                                96 %token TYPEDEF_KEYW
 86 %token UNION_KEYW                                  97 %token UNION_KEYW
 87 %token UNSIGNED_KEYW                               98 %token UNSIGNED_KEYW
 88 %token VOID_KEYW                                   99 %token VOID_KEYW
 89 %token VOLATILE_KEYW                              100 %token VOLATILE_KEYW
 90 %token TYPEOF_KEYW                                101 %token TYPEOF_KEYW
 91 %token VA_LIST_KEYW                               102 %token VA_LIST_KEYW
 92                                                   103 
 93 %token EXPORT_SYMBOL_KEYW                         104 %token EXPORT_SYMBOL_KEYW
 94                                                   105 
 95 %token ASM_PHRASE                                 106 %token ASM_PHRASE
 96 %token ATTRIBUTE_PHRASE                           107 %token ATTRIBUTE_PHRASE
 97 %token TYPEOF_PHRASE                              108 %token TYPEOF_PHRASE
 98 %token BRACE_PHRASE                               109 %token BRACE_PHRASE
 99 %token BRACKET_PHRASE                             110 %token BRACKET_PHRASE
100 %token EXPRESSION_PHRASE                          111 %token EXPRESSION_PHRASE
101 %token STATIC_ASSERT_PHRASE                    << 
102                                                   112 
103 %token CHAR                                       113 %token CHAR
104 %token DOTS                                       114 %token DOTS
105 %token IDENT                                      115 %token IDENT
106 %token INT                                        116 %token INT
107 %token REAL                                       117 %token REAL
108 %token STRING                                     118 %token STRING
109 %token TYPE                                       119 %token TYPE
110 %token OTHER                                      120 %token OTHER
111 %token FILENAME                                   121 %token FILENAME
112                                                   122 
113 %%                                                123 %%
114                                                   124 
115 declaration_seq:                                  125 declaration_seq:
116         declaration                               126         declaration
117         | declaration_seq declaration             127         | declaration_seq declaration
118         ;                                         128         ;
119                                                   129 
120 declaration:                                      130 declaration:
121         { is_typedef = 0; is_extern = 0; curre    131         { is_typedef = 0; is_extern = 0; current_name = NULL; decl_spec = NULL; }
122         declaration1                              132         declaration1
123         { free_list(*$2, NULL); *$2 = NULL; }     133         { free_list(*$2, NULL); *$2 = NULL; }
124         ;                                         134         ;
125                                                   135 
126 declaration1:                                     136 declaration1:
127         EXTENSION_KEYW TYPEDEF_KEYW { is_typed    137         EXTENSION_KEYW TYPEDEF_KEYW { is_typedef = 1; } simple_declaration
128                 { $$ = $4; }                      138                 { $$ = $4; }
129         | TYPEDEF_KEYW { is_typedef = 1; } sim    139         | TYPEDEF_KEYW { is_typedef = 1; } simple_declaration
130                 { $$ = $3; }                      140                 { $$ = $3; }
131         | simple_declaration                      141         | simple_declaration
132         | function_definition                     142         | function_definition
133         | asm_definition                          143         | asm_definition
134         | export_definition                       144         | export_definition
135         | static_assert                        << 
136         | error ';'                               145         | error ';'                             { $$ = $2; }
137         | error '}'                               146         | error '}'                             { $$ = $2; }
138         ;                                         147         ;
139                                                   148 
140 simple_declaration:                               149 simple_declaration:
141         decl_specifier_seq_opt init_declarator    150         decl_specifier_seq_opt init_declarator_list_opt ';'
142                 { if (current_name) {             151                 { if (current_name) {
143                     struct string_list *decl =    152                     struct string_list *decl = (*$3)->next;
144                     (*$3)->next = NULL;           153                     (*$3)->next = NULL;
145                     add_symbol(current_name,      154                     add_symbol(current_name,
146                                is_typedef ? SY    155                                is_typedef ? SYM_TYPEDEF : SYM_NORMAL,
147                                decl, is_extern    156                                decl, is_extern);
148                     current_name = NULL;          157                     current_name = NULL;
149                   }                               158                   }
150                   $$ = $3;                        159                   $$ = $3;
151                 }                                 160                 }
152         ;                                         161         ;
153                                                   162 
154 init_declarator_list_opt:                         163 init_declarator_list_opt:
155         /* empty */                               164         /* empty */                             { $$ = NULL; }
156         | init_declarator_list                    165         | init_declarator_list
157         ;                                         166         ;
158                                                   167 
159 init_declarator_list:                             168 init_declarator_list:
160         init_declarator                           169         init_declarator
161                 { struct string_list *decl = *    170                 { struct string_list *decl = *$1;
162                   *$1 = NULL;                     171                   *$1 = NULL;
163                   add_symbol(current_name,        172                   add_symbol(current_name,
164                              is_typedef ? SYM_    173                              is_typedef ? SYM_TYPEDEF : SYM_NORMAL, decl, is_extern);
165                   current_name = NULL;            174                   current_name = NULL;
166                   $$ = $1;                        175                   $$ = $1;
167                 }                                 176                 }
168         | init_declarator_list ',' init_declar    177         | init_declarator_list ',' init_declarator
169                 { struct string_list *decl = *    178                 { struct string_list *decl = *$3;
170                   *$3 = NULL;                     179                   *$3 = NULL;
171                   free_list(*$2, NULL);           180                   free_list(*$2, NULL);
172                   *$2 = decl_spec;                181                   *$2 = decl_spec;
173                   add_symbol(current_name,        182                   add_symbol(current_name,
174                              is_typedef ? SYM_    183                              is_typedef ? SYM_TYPEDEF : SYM_NORMAL, decl, is_extern);
175                   current_name = NULL;            184                   current_name = NULL;
176                   $$ = $3;                        185                   $$ = $3;
177                 }                                 186                 }
178         ;                                         187         ;
179                                                   188 
180 init_declarator:                                  189 init_declarator:
181         declarator asm_phrase_opt attribute_op    190         declarator asm_phrase_opt attribute_opt initializer_opt
182                 { $$ = $4 ? $4 : $3 ? $3 : $2     191                 { $$ = $4 ? $4 : $3 ? $3 : $2 ? $2 : $1; }
183         ;                                         192         ;
184                                                   193 
185 /* Hang on to the specifiers so that we can re    194 /* Hang on to the specifiers so that we can reuse them.  */
186 decl_specifier_seq_opt:                           195 decl_specifier_seq_opt:
187         /* empty */                               196         /* empty */                             { decl_spec = NULL; }
188         | decl_specifier_seq                      197         | decl_specifier_seq
189         ;                                         198         ;
190                                                   199 
191 decl_specifier_seq:                               200 decl_specifier_seq:
192         decl_specifier                            201         decl_specifier                          { decl_spec = *$1; }
193         | decl_specifier_seq decl_specifier       202         | decl_specifier_seq decl_specifier     { decl_spec = *$2; }
194         ;                                         203         ;
195                                                   204 
196 decl_specifier:                                   205 decl_specifier:
197         storage_class_specifier                   206         storage_class_specifier
198                 { /* Version 2 checksumming ig    207                 { /* Version 2 checksumming ignores storage class, as that
199                      is really irrelevant to t    208                      is really irrelevant to the linkage.  */
200                   remove_node($1);                209                   remove_node($1);
201                   $$ = $1;                        210                   $$ = $1;
202                 }                                 211                 }
203         | type_specifier                          212         | type_specifier
204         ;                                         213         ;
205                                                   214 
206 storage_class_specifier:                          215 storage_class_specifier:
207         AUTO_KEYW                                 216         AUTO_KEYW
208         | REGISTER_KEYW                           217         | REGISTER_KEYW
209         | STATIC_KEYW                             218         | STATIC_KEYW
210         | EXTERN_KEYW   { is_extern = 1; $$ =     219         | EXTERN_KEYW   { is_extern = 1; $$ = $1; }
211         | INLINE_KEYW   { is_extern = 0; $$ =     220         | INLINE_KEYW   { is_extern = 0; $$ = $1; }
212         ;                                         221         ;
213                                                   222 
214 type_specifier:                                   223 type_specifier:
215         simple_type_specifier                     224         simple_type_specifier
216         | cvar_qualifier                          225         | cvar_qualifier
217         | TYPEOF_KEYW '(' parameter_declaratio    226         | TYPEOF_KEYW '(' parameter_declaration ')'
218         | TYPEOF_PHRASE                           227         | TYPEOF_PHRASE
219                                                   228 
220         /* References to s/u/e's defined elsew    229         /* References to s/u/e's defined elsewhere.  Rearrange things
221            so that it is easier to expand the     230            so that it is easier to expand the definition fully later.  */
222         | STRUCT_KEYW IDENT                       231         | STRUCT_KEYW IDENT
223                 { remove_node($1); (*$2)->tag     232                 { remove_node($1); (*$2)->tag = SYM_STRUCT; $$ = $2; }
224         | UNION_KEYW IDENT                        233         | UNION_KEYW IDENT
225                 { remove_node($1); (*$2)->tag     234                 { remove_node($1); (*$2)->tag = SYM_UNION; $$ = $2; }
226         | ENUM_KEYW IDENT                         235         | ENUM_KEYW IDENT
227                 { remove_node($1); (*$2)->tag     236                 { remove_node($1); (*$2)->tag = SYM_ENUM; $$ = $2; }
228                                                   237 
229         /* Full definitions of an s/u/e.  Reco    238         /* Full definitions of an s/u/e.  Record it.  */
230         | STRUCT_KEYW IDENT class_body            239         | STRUCT_KEYW IDENT class_body
231                 { record_compound($1, $2, $3,     240                 { record_compound($1, $2, $3, SYM_STRUCT); $$ = $3; }
232         | UNION_KEYW IDENT class_body             241         | UNION_KEYW IDENT class_body
233                 { record_compound($1, $2, $3,     242                 { record_compound($1, $2, $3, SYM_UNION); $$ = $3; }
234         | ENUM_KEYW IDENT enum_body               243         | ENUM_KEYW IDENT enum_body
235                 { record_compound($1, $2, $3,     244                 { record_compound($1, $2, $3, SYM_ENUM); $$ = $3; }
236         /*                                        245         /*
237          * Anonymous enum definition. Tell add    246          * Anonymous enum definition. Tell add_symbol() to restart its counter.
238          */                                       247          */
239         | ENUM_KEYW enum_body                     248         | ENUM_KEYW enum_body
240                 { add_symbol(NULL, SYM_ENUM, N    249                 { add_symbol(NULL, SYM_ENUM, NULL, 0); $$ = $2; }
241         /* Anonymous s/u definitions.  Nothing    250         /* Anonymous s/u definitions.  Nothing needs doing.  */
242         | STRUCT_KEYW class_body                  251         | STRUCT_KEYW class_body                        { $$ = $2; }
243         | UNION_KEYW class_body                   252         | UNION_KEYW class_body                         { $$ = $2; }
244         ;                                         253         ;
245                                                   254 
246 simple_type_specifier:                            255 simple_type_specifier:
247         CHAR_KEYW                                 256         CHAR_KEYW
248         | SHORT_KEYW                              257         | SHORT_KEYW
249         | INT_KEYW                                258         | INT_KEYW
250         | LONG_KEYW                               259         | LONG_KEYW
251         | SIGNED_KEYW                             260         | SIGNED_KEYW
252         | UNSIGNED_KEYW                           261         | UNSIGNED_KEYW
253         | FLOAT_KEYW                              262         | FLOAT_KEYW
254         | DOUBLE_KEYW                             263         | DOUBLE_KEYW
255         | VOID_KEYW                               264         | VOID_KEYW
256         | BOOL_KEYW                               265         | BOOL_KEYW
257         | VA_LIST_KEYW                            266         | VA_LIST_KEYW
258         | BUILTIN_INT_KEYW                        267         | BUILTIN_INT_KEYW
259         | TYPE                  { (*$1)->tag =    268         | TYPE                  { (*$1)->tag = SYM_TYPEDEF; $$ = $1; }
260         ;                                         269         ;
261                                                   270 
262 ptr_operator:                                     271 ptr_operator:
263         '*' cvar_qualifier_seq_opt                272         '*' cvar_qualifier_seq_opt
264                 { $$ = $2 ? $2 : $1; }            273                 { $$ = $2 ? $2 : $1; }
265         ;                                         274         ;
266                                                   275 
267 cvar_qualifier_seq_opt:                           276 cvar_qualifier_seq_opt:
268         /* empty */                               277         /* empty */                                     { $$ = NULL; }
269         | cvar_qualifier_seq                      278         | cvar_qualifier_seq
270         ;                                         279         ;
271                                                   280 
272 cvar_qualifier_seq:                               281 cvar_qualifier_seq:
273         cvar_qualifier                            282         cvar_qualifier
274         | cvar_qualifier_seq cvar_qualifier       283         | cvar_qualifier_seq cvar_qualifier             { $$ = $2; }
275         ;                                         284         ;
276                                                   285 
277 cvar_qualifier:                                   286 cvar_qualifier:
278         CONST_KEYW | VOLATILE_KEYW | ATTRIBUTE    287         CONST_KEYW | VOLATILE_KEYW | ATTRIBUTE_PHRASE
279         | RESTRICT_KEYW                           288         | RESTRICT_KEYW
280                 { /* restrict has no effect in    289                 { /* restrict has no effect in prototypes so ignore it */
281                   remove_node($1);                290                   remove_node($1);
282                   $$ = $1;                        291                   $$ = $1;
283                 }                                 292                 }
284         ;                                         293         ;
285                                                   294 
286 declarator:                                       295 declarator:
287         ptr_operator declarator                   296         ptr_operator declarator                 { $$ = $2; }
288         | direct_declarator                       297         | direct_declarator
289         ;                                         298         ;
290                                                   299 
291 direct_declarator:                                300 direct_declarator:
292         IDENT                                     301         IDENT
293                 { if (current_name != NULL) {     302                 { if (current_name != NULL) {
294                     error_with_pos("unexpected    303                     error_with_pos("unexpected second declaration name");
295                     YYERROR;                      304                     YYERROR;
296                   } else {                        305                   } else {
297                     current_name = (*$1)->stri    306                     current_name = (*$1)->string;
298                     $$ = $1;                      307                     $$ = $1;
299                   }                               308                   }
300                 }                                 309                 }
301         | TYPE                                    310         | TYPE
302                 { if (current_name != NULL) {     311                 { if (current_name != NULL) {
303                     error_with_pos("unexpected    312                     error_with_pos("unexpected second declaration name");
304                     YYERROR;                      313                     YYERROR;
305                   } else {                        314                   } else {
306                     current_name = (*$1)->stri    315                     current_name = (*$1)->string;
307                     $$ = $1;                      316                     $$ = $1;
308                   }                               317                   }
309                 }                                 318                 }
310         | direct_declarator '(' parameter_decl    319         | direct_declarator '(' parameter_declaration_clause ')'
311                 { $$ = $4; }                      320                 { $$ = $4; }
312         | direct_declarator '(' error ')'         321         | direct_declarator '(' error ')'
313                 { $$ = $4; }                      322                 { $$ = $4; }
314         | direct_declarator BRACKET_PHRASE        323         | direct_declarator BRACKET_PHRASE
315                 { $$ = $2; }                      324                 { $$ = $2; }
316         | '(' declarator ')'                      325         | '(' declarator ')'
317                 { $$ = $3; }                      326                 { $$ = $3; }
318         ;                                         327         ;
319                                                   328 
320 /* Nested declarators differ from regular decl    329 /* Nested declarators differ from regular declarators in that they do
321    not record the symbols they find in the glo    330    not record the symbols they find in the global symbol table.  */
322 nested_declarator:                                331 nested_declarator:
323         ptr_operator nested_declarator            332         ptr_operator nested_declarator          { $$ = $2; }
324         | direct_nested_declarator                333         | direct_nested_declarator
325         ;                                         334         ;
326                                                   335 
327 direct_nested_declarator:                         336 direct_nested_declarator:
328         IDENT                                     337         IDENT
329         | TYPE                                    338         | TYPE
330         | direct_nested_declarator '(' paramet    339         | direct_nested_declarator '(' parameter_declaration_clause ')'
331                 { $$ = $4; }                      340                 { $$ = $4; }
332         | direct_nested_declarator '(' error '    341         | direct_nested_declarator '(' error ')'
333                 { $$ = $4; }                      342                 { $$ = $4; }
334         | direct_nested_declarator BRACKET_PHR    343         | direct_nested_declarator BRACKET_PHRASE
335                 { $$ = $2; }                      344                 { $$ = $2; }
336         | '(' nested_declarator ')'               345         | '(' nested_declarator ')'
337                 { $$ = $3; }                      346                 { $$ = $3; }
338         | '(' error ')'                           347         | '(' error ')'
339                 { $$ = $3; }                      348                 { $$ = $3; }
340         ;                                         349         ;
341                                                   350 
342 parameter_declaration_clause:                     351 parameter_declaration_clause:
343         parameter_declaration_list_opt DOTS       352         parameter_declaration_list_opt DOTS             { $$ = $2; }
344         | parameter_declaration_list_opt          353         | parameter_declaration_list_opt
345         | parameter_declaration_list ',' DOTS     354         | parameter_declaration_list ',' DOTS           { $$ = $3; }
346         ;                                         355         ;
347                                                   356 
348 parameter_declaration_list_opt:                   357 parameter_declaration_list_opt:
349         /* empty */                               358         /* empty */                                     { $$ = NULL; }
350         | parameter_declaration_list              359         | parameter_declaration_list
351         ;                                         360         ;
352                                                   361 
353 parameter_declaration_list:                       362 parameter_declaration_list:
354         parameter_declaration                     363         parameter_declaration
355         | parameter_declaration_list ',' param    364         | parameter_declaration_list ',' parameter_declaration
356                 { $$ = $3; }                      365                 { $$ = $3; }
357         ;                                         366         ;
358                                                   367 
359 parameter_declaration:                            368 parameter_declaration:
360         decl_specifier_seq m_abstract_declarat    369         decl_specifier_seq m_abstract_declarator
361                 { $$ = $2 ? $2 : $1; }            370                 { $$ = $2 ? $2 : $1; }
362         ;                                         371         ;
363                                                   372 
364 m_abstract_declarator:                            373 m_abstract_declarator:
365         ptr_operator m_abstract_declarator        374         ptr_operator m_abstract_declarator
366                 { $$ = $2 ? $2 : $1; }            375                 { $$ = $2 ? $2 : $1; }
367         | direct_m_abstract_declarator            376         | direct_m_abstract_declarator
368         ;                                         377         ;
369                                                   378 
370 direct_m_abstract_declarator:                     379 direct_m_abstract_declarator:
371         /* empty */                               380         /* empty */                                     { $$ = NULL; }
372         | IDENT                                   381         | IDENT
373                 { /* For version 2 checksums,     382                 { /* For version 2 checksums, we don't want to remember
374                      private parameter names.     383                      private parameter names.  */
375                   remove_node($1);                384                   remove_node($1);
376                   $$ = $1;                        385                   $$ = $1;
377                 }                                 386                 }
378         /* This wasn't really a typedef name b    387         /* This wasn't really a typedef name but an identifier that
379            shadows one.  */                       388            shadows one.  */
380         | TYPE                                    389         | TYPE
381                 { remove_node($1);                390                 { remove_node($1);
382                   $$ = $1;                        391                   $$ = $1;
383                 }                                 392                 }
384         | direct_m_abstract_declarator '(' par    393         | direct_m_abstract_declarator '(' parameter_declaration_clause ')'
385                 { $$ = $4; }                      394                 { $$ = $4; }
386         | direct_m_abstract_declarator '(' err    395         | direct_m_abstract_declarator '(' error ')'
387                 { $$ = $4; }                      396                 { $$ = $4; }
388         | direct_m_abstract_declarator BRACKET    397         | direct_m_abstract_declarator BRACKET_PHRASE
389                 { $$ = $2; }                      398                 { $$ = $2; }
390         | '(' m_abstract_declarator ')'           399         | '(' m_abstract_declarator ')'
391                 { $$ = $3; }                      400                 { $$ = $3; }
392         | '(' error ')'                           401         | '(' error ')'
393                 { $$ = $3; }                      402                 { $$ = $3; }
394         ;                                         403         ;
395                                                   404 
396 function_definition:                              405 function_definition:
397         decl_specifier_seq_opt declarator BRAC    406         decl_specifier_seq_opt declarator BRACE_PHRASE
398                 { struct string_list *decl = *    407                 { struct string_list *decl = *$2;
399                   *$2 = NULL;                     408                   *$2 = NULL;
400                   add_symbol(current_name, SYM    409                   add_symbol(current_name, SYM_NORMAL, decl, is_extern);
401                   $$ = $3;                        410                   $$ = $3;
402                 }                                 411                 }
403         ;                                         412         ;
404                                                   413 
405 initializer_opt:                                  414 initializer_opt:
406         /* empty */                               415         /* empty */                                     { $$ = NULL; }
407         | initializer                             416         | initializer
408         ;                                         417         ;
409                                                   418 
410 /* We never care about the contents of an init    419 /* We never care about the contents of an initializer.  */
411 initializer:                                      420 initializer:
412         '=' EXPRESSION_PHRASE                     421         '=' EXPRESSION_PHRASE
413                 { remove_list($2, &(*$1)->next    422                 { remove_list($2, &(*$1)->next); $$ = $2; }
414         ;                                         423         ;
415                                                   424 
416 class_body:                                       425 class_body:
417         '{' member_specification_opt '}'          426         '{' member_specification_opt '}'                { $$ = $3; }
418         | '{' error '}'                           427         | '{' error '}'                                 { $$ = $3; }
419         ;                                         428         ;
420                                                   429 
421 member_specification_opt:                         430 member_specification_opt:
422         /* empty */                               431         /* empty */                                     { $$ = NULL; }
423         | member_specification                    432         | member_specification
424         ;                                         433         ;
425                                                   434 
426 member_specification:                             435 member_specification:
427         member_declaration                        436         member_declaration
428         | member_specification member_declarat    437         | member_specification member_declaration       { $$ = $2; }
429         ;                                         438         ;
430                                                   439 
431 member_declaration:                               440 member_declaration:
432         decl_specifier_seq_opt member_declarat    441         decl_specifier_seq_opt member_declarator_list_opt ';'
433                 { $$ = $3; }                      442                 { $$ = $3; }
434         | error ';'                               443         | error ';'
435                 { $$ = $2; }                      444                 { $$ = $2; }
436         ;                                         445         ;
437                                                   446 
438 member_declarator_list_opt:                       447 member_declarator_list_opt:
439         /* empty */                               448         /* empty */                                     { $$ = NULL; }
440         | member_declarator_list                  449         | member_declarator_list
441         ;                                         450         ;
442                                                   451 
443 member_declarator_list:                           452 member_declarator_list:
444         member_declarator                         453         member_declarator
445         | member_declarator_list ',' member_de    454         | member_declarator_list ',' member_declarator  { $$ = $3; }
446         ;                                         455         ;
447                                                   456 
448 member_declarator:                                457 member_declarator:
449         nested_declarator attribute_opt           458         nested_declarator attribute_opt                 { $$ = $2 ? $2 : $1; }
450         | IDENT member_bitfield_declarator        459         | IDENT member_bitfield_declarator              { $$ = $2; }
451         | member_bitfield_declarator              460         | member_bitfield_declarator
452         ;                                         461         ;
453                                                   462 
454 member_bitfield_declarator:                       463 member_bitfield_declarator:
455         ':' EXPRESSION_PHRASE                     464         ':' EXPRESSION_PHRASE                           { $$ = $2; }
456         ;                                         465         ;
457                                                   466 
458 attribute_opt:                                    467 attribute_opt:
459         /* empty */                               468         /* empty */                                     { $$ = NULL; }
460         | attribute_opt ATTRIBUTE_PHRASE          469         | attribute_opt ATTRIBUTE_PHRASE
461         ;                                         470         ;
462                                                   471 
463 enum_body:                                        472 enum_body:
464         '{' enumerator_list '}'                   473         '{' enumerator_list '}'                         { $$ = $3; }
465         | '{' enumerator_list ',' '}'             474         | '{' enumerator_list ',' '}'                   { $$ = $4; }
466          ;                                        475          ;
467                                                   476 
468 enumerator_list:                                  477 enumerator_list:
469         enumerator                                478         enumerator
470         | enumerator_list ',' enumerator          479         | enumerator_list ',' enumerator
471                                                   480 
472 enumerator:                                       481 enumerator:
473         IDENT                                     482         IDENT
474                 {                                 483                 {
475                         const char *name = str    484                         const char *name = strdup((*$1)->string);
476                         add_symbol(name, SYM_E    485                         add_symbol(name, SYM_ENUM_CONST, NULL, 0);
477                 }                                 486                 }
478         | IDENT '=' EXPRESSION_PHRASE             487         | IDENT '=' EXPRESSION_PHRASE
479                 {                                 488                 {
480                         const char *name = str    489                         const char *name = strdup((*$1)->string);
481                         struct string_list *ex    490                         struct string_list *expr = copy_list_range(*$3, *$2);
482                         add_symbol(name, SYM_E    491                         add_symbol(name, SYM_ENUM_CONST, expr, 0);
483                 }                                 492                 }
484                                                   493 
485 asm_definition:                                   494 asm_definition:
486         ASM_PHRASE ';'                            495         ASM_PHRASE ';'                                  { $$ = $2; }
487         ;                                         496         ;
488                                                   497 
489 asm_phrase_opt:                                   498 asm_phrase_opt:
490         /* empty */                               499         /* empty */                                     { $$ = NULL; }
491         | ASM_PHRASE                              500         | ASM_PHRASE
492         ;                                         501         ;
493                                                   502 
494 export_definition:                                503 export_definition:
495         EXPORT_SYMBOL_KEYW '(' IDENT ')' ';'      504         EXPORT_SYMBOL_KEYW '(' IDENT ')' ';'
496                 { export_symbol((*$3)->string)    505                 { export_symbol((*$3)->string); $$ = $5; }
497         ;                                         506         ;
498                                                   507 
499 /* Ignore any module scoped _Static_assert(... << 
500 static_assert:                                 << 
501         STATIC_ASSERT_PHRASE ';'               << 
502         ;                                      << 
503                                                   508 
504 %%                                                509 %%
505                                                   510 
506 static void                                       511 static void
507 yyerror(const char *e)                            512 yyerror(const char *e)
508 {                                                 513 {
509   error_with_pos("%s", e);                        514   error_with_pos("%s", e);
510 }                                                 515 }
                                                      

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