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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-5.0.21)


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

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