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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-5.12.19)


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

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