1 /* A YACC grammar to parse a superset of the AT&T linker scripting language.
2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
4 Written by Steve Chamberlain of Cygnus Support (steve@cygnus.com).
6 This file is part of the GNU Binutils.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
28 #define DONTDECLARE_MALLOC
49 static enum section_type sectype;
50 static lang_memory_region_type *region;
52 FILE *saved_script_handle = NULL;
53 bfd_boolean force_make_executable = FALSE;
55 bfd_boolean ldgram_in_script = FALSE;
56 bfd_boolean ldgram_had_equals = FALSE;
57 bfd_boolean ldgram_had_keep = FALSE;
58 char *ldgram_vers_current_lang = NULL;
60 #define ERROR_NAME_MAX 20
61 static char *error_names[ERROR_NAME_MAX];
62 static int error_index;
63 #define PUSH_ERROR(x) if (error_index < ERROR_NAME_MAX) error_names[error_index] = x; error_index++;
64 #define POP_ERROR() error_index--;
76 struct wildcard_spec wildcard;
77 struct wildcard_list *wildcard_list;
78 struct name_list *name_list;
80 union etree_union *etree;
85 union etree_union *at;
86 union etree_union *flags;
88 struct lang_nocrossref *nocrossref;
89 struct lang_output_section_phdr_list *section_phdr;
90 struct bfd_elf_version_deps *deflist;
91 struct bfd_elf_version_expr *versyms;
92 struct bfd_elf_version_tree *versnode;
95 %type <etree> exp opt_exp_with_type mustbe_exp opt_at phdr_type phdr_val
96 %type <etree> opt_exp_without_type opt_subalign opt_align
97 %type <fill> fill_opt fill_exp
98 %type <name_list> exclude_name_list
99 %type <wildcard_list> file_NAME_list
100 %type <name> memspec_opt casesymlist
101 %type <name> memspec_at_opt
102 %type <cname> wildcard_name
103 %type <wildcard> wildcard_spec
105 %token <name> NAME LNAME
106 %type <integer> length
107 %type <phdr> phdr_qualifiers
108 %type <nocrossref> nocrossref_list
109 %type <section_phdr> phdr_opt
110 %type <integer> opt_nocrossrefs
112 %right <token> PLUSEQ MINUSEQ MULTEQ DIVEQ '=' LSHIFTEQ RSHIFTEQ ANDEQ OREQ
113 %right <token> '?' ':'
120 %left <token> '<' '>' LE GE
121 %left <token> LSHIFT RSHIFT
123 %left <token> '+' '-'
124 %left <token> '*' '/' '%'
129 %token <token> ALIGN_K BLOCK BIND QUAD SQUAD LONG SHORT BYTE
130 %token SECTIONS PHDRS DATA_SEGMENT_ALIGN DATA_SEGMENT_RELRO_END DATA_SEGMENT_END
131 %token SORT_BY_NAME SORT_BY_ALIGNMENT
133 %token SIZEOF_HEADERS OUTPUT_FORMAT FORCE_COMMON_ALLOCATION OUTPUT_ARCH
134 %token INHIBIT_COMMON_ALLOCATION
138 %token NOLOAD DSECT COPY INFO OVERLAY
139 %token DEFINED TARGET_K SEARCH_DIR MAP ENTRY
140 %token <integer> NEXT
141 %token SIZEOF ALIGNOF ADDR LOADADDR MAX_K MIN_K
142 %token STARTUP HLL SYSLIB FLOAT NOFLOAT NOCROSSREFS
144 %token LENGTH CREATE_OBJECT_SYMBOLS INPUT GROUP OUTPUT CONSTRUCTORS
145 %token ALIGNMOD AT SUBALIGN PROVIDE PROVIDE_HIDDEN AS_NEEDED
146 %type <token> assign_op atype attributes_opt sect_constraint
147 %type <name> filename
148 %token CHIP LIST SECT ABSOLUTE LOAD NEWLINE ENDWORD ORDER NAMEWORD ASSERT_K
149 %token FORMAT PUBLIC DEFSYMEND BASE ALIAS TRUNCATE REL
150 %token INPUT_SCRIPT INPUT_MRI_SCRIPT INPUT_DEFSYM CASE EXTERN START
151 %token <name> VERS_TAG VERS_IDENTIFIER
152 %token GLOBAL LOCAL VERSIONK INPUT_VERSION_SCRIPT
153 %token KEEP ONLY_IF_RO ONLY_IF_RW SPECIAL
156 %type <versyms> vers_defns
157 %type <versnode> vers_tag
158 %type <deflist> verdep
159 %token INPUT_DYNAMIC_LIST
164 INPUT_SCRIPT script_file
165 | INPUT_MRI_SCRIPT mri_script_file
166 | INPUT_VERSION_SCRIPT version_script_file
167 | INPUT_DYNAMIC_LIST dynamic_list_file
168 | INPUT_DEFSYM defsym_expr
180 lang_add_assignment(exp_assop($3,$2,$4));
184 /* SYNTAX WITHIN AN MRI SCRIPT FILE */
188 PUSH_ERROR (_("MRI style script"));
199 mri_script_lines mri_script_command NEWLINE
207 einfo(_("%P%F: unrecognised keyword in MRI style script '%s'\n"),$1);
210 config.map_filename = "-";
212 | ORDER ordernamelist
214 | PUBLIC NAME '=' exp
215 { mri_public($2, $4); }
216 | PUBLIC NAME ',' exp
217 { mri_public($2, $4); }
219 { mri_public($2, $3); }
223 { mri_output_section($2, $4);}
225 { mri_output_section($2, $3);}
227 { mri_output_section($2, $4);}
228 | ALIGN_K NAME '=' exp
229 { mri_align($2,$4); }
230 | ALIGN_K NAME ',' exp
231 { mri_align($2,$4); }
232 | ALIGNMOD NAME '=' exp
233 { mri_alignmod($2,$4); }
234 | ALIGNMOD NAME ',' exp
235 { mri_alignmod($2,$4); }
236 | ABSOLUTE mri_abs_name_list
237 | LOAD mri_load_name_list
240 | ALIAS NAME ',' NAME
241 { mri_alias($2,$4,0);}
243 { mri_alias ($2, 0, (int) $4.integer); }
247 { mri_truncate ((unsigned int) $2.integer); }
249 | EXTERN extern_name_list
251 { ldlex_script (); ldfile_open_command_file($2); }
253 { ldlex_popstate (); }
255 { lang_add_entry ($2, FALSE); }
260 ordernamelist ',' NAME { mri_order($3); }
261 | ordernamelist NAME { mri_order($2); }
268 | mri_load_name_list ',' NAME { mri_load($3); }
273 { mri_only_load($1); }
274 | mri_abs_name_list ',' NAME
275 { mri_only_load($3); }
279 /* empty */ { $$ = NULL; }
281 | casesymlist ',' NAME
284 /* Parsed as expressions so that commas separate entries */
286 { ldlex_expression (); }
287 extern_name_list_body
288 { ldlex_popstate (); }
290 extern_name_list_body:
292 { ldlang_add_undef ($1); }
293 | extern_name_list_body NAME
294 { ldlang_add_undef ($2); }
295 | extern_name_list_body ',' NAME
296 { ldlang_add_undef ($3); }
302 { ldlex_popstate(); }
318 | floating_point_support
322 | TARGET_K '(' NAME ')'
323 { lang_add_target($3); }
324 | SEARCH_DIR '(' filename ')'
325 { ldfile_add_library_path ($3, FALSE); }
326 | OUTPUT '(' filename ')'
327 { lang_add_output($3, 1); }
328 | OUTPUT_FORMAT '(' NAME ')'
329 { lang_add_output_format ($3, (char *) NULL,
331 | OUTPUT_FORMAT '(' NAME ',' NAME ',' NAME ')'
332 { lang_add_output_format ($3, $5, $7, 1); }
333 | OUTPUT_ARCH '(' NAME ')'
334 { ldfile_set_output_arch ($3, bfd_arch_unknown); }
335 | FORCE_COMMON_ALLOCATION
336 { command_line.force_common_definition = TRUE ; }
337 | INHIBIT_COMMON_ALLOCATION
338 { command_line.inhibit_common_definition = TRUE ; }
339 | INPUT '(' input_list ')'
341 { lang_enter_group (); }
343 { lang_leave_group (); }
344 | MAP '(' filename ')'
345 { lang_add_map($3); }
347 { ldlex_script (); ldfile_open_command_file($2); }
349 { ldlex_popstate (); }
350 | NOCROSSREFS '(' nocrossref_list ')'
352 lang_add_nocrossref ($3);
354 | EXTERN '(' extern_name_list ')'
359 { lang_add_input_file($1,lang_input_file_is_search_file_enum,
361 | input_list ',' NAME
362 { lang_add_input_file($3,lang_input_file_is_search_file_enum,
365 { lang_add_input_file($2,lang_input_file_is_search_file_enum,
368 { lang_add_input_file($1,lang_input_file_is_l_enum,
370 | input_list ',' LNAME
371 { lang_add_input_file($3,lang_input_file_is_l_enum,
374 { lang_add_input_file($2,lang_input_file_is_l_enum,
377 { $<integer>$ = as_needed; as_needed = TRUE; }
379 { as_needed = $<integer>3; }
380 | input_list ',' AS_NEEDED '('
381 { $<integer>$ = as_needed; as_needed = TRUE; }
383 { as_needed = $<integer>5; }
384 | input_list AS_NEEDED '('
385 { $<integer>$ = as_needed; as_needed = TRUE; }
387 { as_needed = $<integer>4; }
391 SECTIONS '{' sec_or_group_p1 '}'
395 sec_or_group_p1 section
396 | sec_or_group_p1 statement_anywhere
402 { lang_add_entry ($3, FALSE); }
404 | ASSERT_K {ldlex_expression ();} '(' exp ',' NAME ')'
406 lang_add_assignment (exp_assert ($4, $6)); }
409 /* The '*' and '?' cases are there because the lexer returns them as
410 separate tokens rather than as NAME. */
431 $$.exclude_name_list = NULL;
433 | EXCLUDE_FILE '(' exclude_name_list ')' wildcard_name
437 $$.exclude_name_list = $3;
439 | SORT_BY_NAME '(' wildcard_name ')'
443 $$.exclude_name_list = NULL;
445 | SORT_BY_ALIGNMENT '(' wildcard_name ')'
448 $$.sorted = by_alignment;
449 $$.exclude_name_list = NULL;
451 | SORT_BY_NAME '(' SORT_BY_ALIGNMENT '(' wildcard_name ')' ')'
454 $$.sorted = by_name_alignment;
455 $$.exclude_name_list = NULL;
457 | SORT_BY_NAME '(' SORT_BY_NAME '(' wildcard_name ')' ')'
461 $$.exclude_name_list = NULL;
463 | SORT_BY_ALIGNMENT '(' SORT_BY_NAME '(' wildcard_name ')' ')'
466 $$.sorted = by_alignment_name;
467 $$.exclude_name_list = NULL;
469 | SORT_BY_ALIGNMENT '(' SORT_BY_ALIGNMENT '(' wildcard_name ')' ')'
472 $$.sorted = by_alignment;
473 $$.exclude_name_list = NULL;
475 | SORT_BY_NAME '(' EXCLUDE_FILE '(' exclude_name_list ')' wildcard_name ')'
479 $$.exclude_name_list = $5;
484 exclude_name_list wildcard_name
486 struct name_list *tmp;
487 tmp = (struct name_list *) xmalloc (sizeof *tmp);
495 struct name_list *tmp;
496 tmp = (struct name_list *) xmalloc (sizeof *tmp);
504 file_NAME_list opt_comma wildcard_spec
506 struct wildcard_list *tmp;
507 tmp = (struct wildcard_list *) xmalloc (sizeof *tmp);
515 struct wildcard_list *tmp;
516 tmp = (struct wildcard_list *) xmalloc (sizeof *tmp);
523 input_section_spec_no_keep:
526 struct wildcard_spec tmp;
528 tmp.exclude_name_list = NULL;
530 lang_add_wild (&tmp, NULL, ldgram_had_keep);
532 | '[' file_NAME_list ']'
534 lang_add_wild (NULL, $2, ldgram_had_keep);
536 | wildcard_spec '(' file_NAME_list ')'
538 lang_add_wild (&$1, $3, ldgram_had_keep);
543 input_section_spec_no_keep
545 { ldgram_had_keep = TRUE; }
546 input_section_spec_no_keep ')'
547 { ldgram_had_keep = FALSE; }
552 | CREATE_OBJECT_SYMBOLS
554 lang_add_attribute(lang_object_symbols_statement_enum);
560 lang_add_attribute(lang_constructors_statement_enum);
562 | SORT_BY_NAME '(' CONSTRUCTORS ')'
564 constructors_sorted = TRUE;
565 lang_add_attribute (lang_constructors_statement_enum);
568 | length '(' mustbe_exp ')'
570 lang_add_data ((int) $1, $3);
573 | FILL '(' fill_exp ')'
577 | ASSERT_K {ldlex_expression ();} '(' exp ',' NAME ')' end
579 lang_add_assignment (exp_assert ($4, $6)); }
583 statement_list statement
608 $$ = exp_get_fill ($1, 0, "fill value");
615 | { $$ = (fill_type *) 0; }
645 lang_add_assignment (exp_assop ($2, $1, $3));
647 | NAME assign_op mustbe_exp
649 lang_add_assignment (exp_assop ('=', $1,
655 | PROVIDE '(' NAME '=' mustbe_exp ')'
657 lang_add_assignment (exp_provide ($3, $5, FALSE));
659 | PROVIDE_HIDDEN '(' NAME '=' mustbe_exp ')'
661 lang_add_assignment (exp_provide ($3, $5, TRUE));
671 MEMORY '{' memory_spec memory_spec_list '}'
675 memory_spec_list memory_spec
676 | memory_spec_list ',' memory_spec
682 { region = lang_memory_region_lookup ($1, TRUE); }
684 origin_spec opt_comma length_spec
689 ORIGIN '=' mustbe_exp
691 region->origin = exp_get_vma ($3, 0, "origin");
692 region->current = region->origin;
697 LENGTH '=' mustbe_exp
699 region->length = exp_get_vma ($3, -1, "length");
705 { /* dummy action to avoid bison 1.25 error message */ }
706 | '(' attributes_list ')'
711 | attributes_list attributes_string
716 { lang_set_flags (region, $1, 0); }
718 { lang_set_flags (region, $2, 1); }
722 STARTUP '(' filename ')'
723 { lang_startup($3); }
727 HLL '(' high_level_library_NAME_list ')'
729 { ldemul_hll((char *)NULL); }
732 high_level_library_NAME_list:
733 high_level_library_NAME_list opt_comma filename
741 SYSLIB '(' low_level_library_NAME_list ')'
742 ; low_level_library_NAME_list:
743 low_level_library_NAME_list opt_comma filename
744 { ldemul_syslib($3); }
748 floating_point_support:
750 { lang_float(TRUE); }
752 { lang_float(FALSE); }
760 | NAME nocrossref_list
762 struct lang_nocrossref *n;
764 n = (struct lang_nocrossref *) xmalloc (sizeof *n);
769 | NAME ',' nocrossref_list
771 struct lang_nocrossref *n;
773 n = (struct lang_nocrossref *) xmalloc (sizeof *n);
780 mustbe_exp: { ldlex_expression (); }
782 { ldlex_popstate (); $$=$2;}
787 { $$ = exp_unop ('-', $2); }
790 | NEXT '(' exp ')' %prec UNARY
791 { $$ = exp_unop ((int) $1,$3); }
792 | '!' exp %prec UNARY
793 { $$ = exp_unop ('!', $2); }
794 | '+' exp %prec UNARY
796 | '~' exp %prec UNARY
797 { $$ = exp_unop ('~', $2);}
800 { $$ = exp_binop ('*', $1, $3); }
802 { $$ = exp_binop ('/', $1, $3); }
804 { $$ = exp_binop ('%', $1, $3); }
806 { $$ = exp_binop ('+', $1, $3); }
808 { $$ = exp_binop ('-' , $1, $3); }
810 { $$ = exp_binop (LSHIFT , $1, $3); }
812 { $$ = exp_binop (RSHIFT , $1, $3); }
814 { $$ = exp_binop (EQ , $1, $3); }
816 { $$ = exp_binop (NE , $1, $3); }
818 { $$ = exp_binop (LE , $1, $3); }
820 { $$ = exp_binop (GE , $1, $3); }
822 { $$ = exp_binop ('<' , $1, $3); }
824 { $$ = exp_binop ('>' , $1, $3); }
826 { $$ = exp_binop ('&' , $1, $3); }
828 { $$ = exp_binop ('^' , $1, $3); }
830 { $$ = exp_binop ('|' , $1, $3); }
831 | exp '?' exp ':' exp
832 { $$ = exp_trinop ('?' , $1, $3, $5); }
834 { $$ = exp_binop (ANDAND , $1, $3); }
836 { $$ = exp_binop (OROR , $1, $3); }
837 | DEFINED '(' NAME ')'
838 { $$ = exp_nameop (DEFINED, $3); }
840 { $$ = exp_bigintop ($1.integer, $1.str); }
842 { $$ = exp_nameop (SIZEOF_HEADERS,0); }
844 | ALIGNOF '(' NAME ')'
845 { $$ = exp_nameop (ALIGNOF,$3); }
846 | SIZEOF '(' NAME ')'
847 { $$ = exp_nameop (SIZEOF,$3); }
849 { $$ = exp_nameop (ADDR,$3); }
850 | LOADADDR '(' NAME ')'
851 { $$ = exp_nameop (LOADADDR,$3); }
852 | CONSTANT '(' NAME ')'
853 { $$ = exp_nameop (CONSTANT,$3); }
854 | ABSOLUTE '(' exp ')'
855 { $$ = exp_unop (ABSOLUTE, $3); }
856 | ALIGN_K '(' exp ')'
857 { $$ = exp_unop (ALIGN_K,$3); }
858 | ALIGN_K '(' exp ',' exp ')'
859 { $$ = exp_binop (ALIGN_K,$3,$5); }
860 | DATA_SEGMENT_ALIGN '(' exp ',' exp ')'
861 { $$ = exp_binop (DATA_SEGMENT_ALIGN, $3, $5); }
862 | DATA_SEGMENT_RELRO_END '(' exp ',' exp ')'
863 { $$ = exp_binop (DATA_SEGMENT_RELRO_END, $5, $3); }
864 | DATA_SEGMENT_END '(' exp ')'
865 { $$ = exp_unop (DATA_SEGMENT_END, $3); }
866 | SEGMENT_START '(' NAME ',' exp ')'
867 { /* The operands to the expression node are
868 placed in the opposite order from the way
869 in which they appear in the script as
870 that allows us to reuse more code in
872 $$ = exp_binop (SEGMENT_START,
874 exp_nameop (NAME, $3)); }
876 { $$ = exp_unop (ALIGN_K,$3); }
878 { $$ = exp_nameop (NAME,$1); }
879 | MAX_K '(' exp ',' exp ')'
880 { $$ = exp_binop (MAX_K, $3, $5 ); }
881 | MIN_K '(' exp ',' exp ')'
882 { $$ = exp_binop (MIN_K, $3, $5 ); }
883 | ASSERT_K '(' exp ',' NAME ')'
884 { $$ = exp_assert ($3, $5); }
885 | ORIGIN '(' NAME ')'
886 { $$ = exp_nameop (ORIGIN, $3); }
887 | LENGTH '(' NAME ')'
888 { $$ = exp_nameop (LENGTH, $3); }
893 AT '>' NAME { $$ = $3; }
898 AT '(' exp ')' { $$ = $3; }
903 ALIGN_K '(' exp ')' { $$ = $3; }
908 SUBALIGN '(' exp ')' { $$ = $3; }
913 ONLY_IF_RO { $$ = ONLY_IF_RO; }
914 | ONLY_IF_RW { $$ = ONLY_IF_RW; }
915 | SPECIAL { $$ = SPECIAL; }
919 section: NAME { ldlex_expression(); }
923 opt_subalign { ldlex_popstate (); ldlex_script (); }
927 lang_enter_output_section_statement($1, $3,
932 '}' { ldlex_popstate (); ldlex_expression (); }
933 memspec_opt memspec_at_opt phdr_opt fill_opt
936 lang_leave_output_section_statement ($17, $14, $16, $15);
941 { ldlex_expression (); }
942 opt_exp_without_type opt_nocrossrefs opt_at opt_subalign
943 { ldlex_popstate (); ldlex_script (); }
946 lang_enter_overlay ($3, $6);
950 { ldlex_popstate (); ldlex_expression (); }
951 memspec_opt memspec_at_opt phdr_opt fill_opt
954 lang_leave_overlay ($5, (int) $4,
958 | /* The GROUP case is just enough to support the gcc
959 svr3.ifile script. It is not intended to be full
960 support. I'm not even sure what GROUP is supposed
962 GROUP { ldlex_expression (); }
966 lang_add_assignment (exp_assop ('=', ".", $3));
968 '{' sec_or_group_p1 '}'
972 NOLOAD { sectype = noload_section; }
973 | DSECT { sectype = noalloc_section; }
974 | COPY { sectype = noalloc_section; }
975 | INFO { sectype = noalloc_section; }
976 | OVERLAY { sectype = noalloc_section; }
981 | /* EMPTY */ { sectype = normal_section; }
982 | '(' ')' { sectype = normal_section; }
986 exp atype ':' { $$ = $1; }
987 | atype ':' { $$ = (etree_type *)NULL; }
988 | /* The BIND cases are to support the gcc svr3.ifile
989 script. They aren't intended to implement full
990 support for the BIND keyword. I'm not even sure
991 what BIND is supposed to mean. */
992 BIND '(' exp ')' atype ':' { $$ = $3; }
993 | BIND '(' exp ')' BLOCK '(' exp ')' atype ':'
997 opt_exp_without_type:
999 | ':' { $$ = (etree_type *) NULL; }
1012 | { $$ = DEFAULT_MEMORY_REGION; }
1022 struct lang_output_section_phdr_list *n;
1024 n = ((struct lang_output_section_phdr_list *)
1025 xmalloc (sizeof *n));
1039 lang_enter_overlay_section ($2);
1041 '{' statement_list_opt '}'
1042 { ldlex_popstate (); ldlex_expression (); }
1046 lang_leave_overlay_section ($9, $8);
1052 PHDRS '{' phdr_list '}'
1061 NAME { ldlex_expression (); }
1062 phdr_type phdr_qualifiers { ldlex_popstate (); }
1065 lang_new_phdr ($1, $3, $4.filehdr, $4.phdrs, $4.at,
1075 if ($1->type.node_class == etree_name
1076 && $1->type.node_code == NAME)
1080 static const char * const phdr_types[] =
1082 "PT_NULL", "PT_LOAD", "PT_DYNAMIC",
1083 "PT_INTERP", "PT_NOTE", "PT_SHLIB",
1089 i < sizeof phdr_types / sizeof phdr_types[0];
1091 if (strcmp (s, phdr_types[i]) == 0)
1096 if (i == sizeof phdr_types / sizeof phdr_types[0])
1098 if (strcmp (s, "PT_GNU_EH_FRAME") == 0)
1099 $$ = exp_intop (0x6474e550);
1100 else if (strcmp (s, "PT_GNU_STACK") == 0)
1101 $$ = exp_intop (0x6474e551);
1105 %X%P:%S: unknown phdr type `%s' (try integer literal)\n"),
1117 memset (&$$, 0, sizeof (struct phdr_info));
1119 | NAME phdr_val phdr_qualifiers
1122 if (strcmp ($1, "FILEHDR") == 0 && $2 == NULL)
1124 else if (strcmp ($1, "PHDRS") == 0 && $2 == NULL)
1126 else if (strcmp ($1, "FLAGS") == 0 && $2 != NULL)
1129 einfo (_("%X%P:%S: PHDRS syntax error at `%s'\n"), $1);
1131 | AT '(' exp ')' phdr_qualifiers
1151 ldlex_version_file ();
1152 PUSH_ERROR (_("dynamic list"));
1163 | dynamic_list_nodes dynamic_list_node
1167 '{' dynamic_list_tag '}' ';'
1173 lang_append_dynamic_list ($1);
1177 /* This syntax is used within an external version script file. */
1179 version_script_file:
1181 ldlex_version_file ();
1182 PUSH_ERROR (_("VERSION script"));
1191 /* This is used within a normal linker script file. */
1195 ldlex_version_script ();
1197 VERSIONK '{' vers_nodes '}'
1205 | vers_nodes vers_node
1209 '{' vers_tag '}' ';'
1211 lang_register_vers_node (NULL, $2, NULL);
1213 | VERS_TAG '{' vers_tag '}' ';'
1215 lang_register_vers_node ($1, $3, NULL);
1217 | VERS_TAG '{' vers_tag '}' verdep ';'
1219 lang_register_vers_node ($1, $3, $5);
1226 $$ = lang_add_vers_depend (NULL, $1);
1230 $$ = lang_add_vers_depend ($1, $2);
1237 $$ = lang_new_vers_node (NULL, NULL);
1241 $$ = lang_new_vers_node ($1, NULL);
1243 | GLOBAL ':' vers_defns ';'
1245 $$ = lang_new_vers_node ($3, NULL);
1247 | LOCAL ':' vers_defns ';'
1249 $$ = lang_new_vers_node (NULL, $3);
1251 | GLOBAL ':' vers_defns ';' LOCAL ':' vers_defns ';'
1253 $$ = lang_new_vers_node ($3, $7);
1260 $$ = lang_new_vers_pattern (NULL, $1, ldgram_vers_current_lang, FALSE);
1264 $$ = lang_new_vers_pattern (NULL, $1, ldgram_vers_current_lang, TRUE);
1266 | vers_defns ';' VERS_IDENTIFIER
1268 $$ = lang_new_vers_pattern ($1, $3, ldgram_vers_current_lang, FALSE);
1270 | vers_defns ';' NAME
1272 $$ = lang_new_vers_pattern ($1, $3, ldgram_vers_current_lang, TRUE);
1274 | vers_defns ';' EXTERN NAME '{'
1276 $<name>$ = ldgram_vers_current_lang;
1277 ldgram_vers_current_lang = $4;
1279 vers_defns opt_semicolon '}'
1281 struct bfd_elf_version_expr *pat;
1282 for (pat = $7; pat->next != NULL; pat = pat->next);
1285 ldgram_vers_current_lang = $<name>6;
1289 $<name>$ = ldgram_vers_current_lang;
1290 ldgram_vers_current_lang = $2;
1292 vers_defns opt_semicolon '}'
1295 ldgram_vers_current_lang = $<name>4;
1299 $$ = lang_new_vers_pattern (NULL, "global", ldgram_vers_current_lang, FALSE);
1301 | vers_defns ';' GLOBAL
1303 $$ = lang_new_vers_pattern ($1, "global", ldgram_vers_current_lang, FALSE);
1307 $$ = lang_new_vers_pattern (NULL, "local", ldgram_vers_current_lang, FALSE);
1309 | vers_defns ';' LOCAL
1311 $$ = lang_new_vers_pattern ($1, "local", ldgram_vers_current_lang, FALSE);
1315 $$ = lang_new_vers_pattern (NULL, "extern", ldgram_vers_current_lang, FALSE);
1317 | vers_defns ';' EXTERN
1319 $$ = lang_new_vers_pattern ($1, "extern", ldgram_vers_current_lang, FALSE);
1333 if (ldfile_assumed_script)
1334 einfo (_("%P:%s: file format not recognized; treating as linker script\n"),
1335 ldfile_input_filename);
1336 if (error_index > 0 && error_index < ERROR_NAME_MAX)
1337 einfo ("%P%F:%S: %s in %s\n", arg, error_names[error_index-1]);
1339 einfo ("%P%F:%S: %s\n", arg);