1
/* A YACC grammar to parse a superset of the AT&T linker scripting language.
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Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
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2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
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Free Software Foundation, Inc.
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Written by Steve Chamberlain of Cygnus Support (steve@cygnus.com).
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This file is part of the GNU Binutils.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#define DONTDECLARE_MALLOC
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static enum section_type sectype;
51
static lang_memory_region_type *region;
53
bfd_boolean ldgram_had_keep = FALSE;
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char *ldgram_vers_current_lang = NULL;
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#define ERROR_NAME_MAX 20
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static char *error_names[ERROR_NAME_MAX];
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static int error_index;
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#define PUSH_ERROR(x) if (error_index < ERROR_NAME_MAX) error_names[error_index] = x; error_index++;
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#define POP_ERROR() error_index--;
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struct wildcard_spec wildcard;
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struct wildcard_list *wildcard_list;
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struct name_list *name_list;
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struct flag_info_list *flag_info_list;
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struct flag_info *flag_info;
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union etree_union *etree;
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union etree_union *at;
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union etree_union *flags;
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struct lang_nocrossref *nocrossref;
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struct lang_output_section_phdr_list *section_phdr;
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struct bfd_elf_version_deps *deflist;
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struct bfd_elf_version_expr *versyms;
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struct bfd_elf_version_tree *versnode;
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%type <etree> exp opt_exp_with_type mustbe_exp opt_at phdr_type phdr_val
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%type <etree> opt_exp_without_type opt_subalign opt_align
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%type <fill> fill_opt fill_exp
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%type <name_list> exclude_name_list
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%type <wildcard_list> file_NAME_list
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%type <flag_info_list> sect_flag_list
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%type <flag_info> sect_flags
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%type <name> memspec_opt casesymlist
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%type <name> memspec_at_opt
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%type <cname> wildcard_name
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%type <wildcard> wildcard_spec
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%token <name> NAME LNAME
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%type <integer> length
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%type <phdr> phdr_qualifiers
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%type <nocrossref> nocrossref_list
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%type <section_phdr> phdr_opt
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%type <integer> opt_nocrossrefs
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%right <token> PLUSEQ MINUSEQ MULTEQ DIVEQ '=' LSHIFTEQ RSHIFTEQ ANDEQ OREQ
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%right <token> '?' ':'
120
%left <token> '<' '>' LE GE
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%left <token> LSHIFT RSHIFT
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%left <token> '+' '-'
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%left <token> '*' '/' '%'
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%token <token> ALIGN_K BLOCK BIND QUAD SQUAD LONG SHORT BYTE
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%token SECTIONS PHDRS INSERT_K AFTER BEFORE
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%token DATA_SEGMENT_ALIGN DATA_SEGMENT_RELRO_END DATA_SEGMENT_END
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%token SORT_BY_NAME SORT_BY_ALIGNMENT SORT_NONE
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%token SORT_BY_INIT_PRIORITY
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%token SIZEOF_HEADERS OUTPUT_FORMAT FORCE_COMMON_ALLOCATION OUTPUT_ARCH
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%token INHIBIT_COMMON_ALLOCATION
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%token NOLOAD DSECT COPY INFO OVERLAY
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%token DEFINED TARGET_K SEARCH_DIR MAP ENTRY
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%token <integer> NEXT
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%token SIZEOF ALIGNOF ADDR LOADADDR MAX_K MIN_K
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%token STARTUP HLL SYSLIB FLOAT NOFLOAT NOCROSSREFS
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%token LENGTH CREATE_OBJECT_SYMBOLS INPUT GROUP OUTPUT CONSTRUCTORS
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%token ALIGNMOD AT SUBALIGN HIDDEN PROVIDE PROVIDE_HIDDEN AS_NEEDED
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%type <token> assign_op atype attributes_opt sect_constraint
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%type <name> filename
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%token CHIP LIST SECT ABSOLUTE LOAD NEWLINE ENDWORD ORDER NAMEWORD ASSERT_K
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%token FORMAT PUBLIC DEFSYMEND BASE ALIAS TRUNCATE REL
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%token INPUT_SCRIPT INPUT_MRI_SCRIPT INPUT_DEFSYM CASE EXTERN START
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%token <name> VERS_TAG VERS_IDENTIFIER
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%token GLOBAL LOCAL VERSIONK INPUT_VERSION_SCRIPT
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%token KEEP ONLY_IF_RO ONLY_IF_RW SPECIAL INPUT_SECTION_FLAGS
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%type <versyms> vers_defns
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%type <versnode> vers_tag
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%type <deflist> verdep
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%token INPUT_DYNAMIC_LIST
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INPUT_SCRIPT script_file
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| INPUT_MRI_SCRIPT mri_script_file
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| INPUT_VERSION_SCRIPT version_script_file
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| INPUT_DYNAMIC_LIST dynamic_list_file
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| INPUT_DEFSYM defsym_expr
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lang_add_assignment (exp_defsym ($2, $4));
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/* SYNTAX WITHIN AN MRI SCRIPT FILE */
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PUSH_ERROR (_("MRI style script"));
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mri_script_lines mri_script_command NEWLINE
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einfo(_("%P%F: unrecognised keyword in MRI style script '%s'\n"),$1);
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config.map_filename = "-";
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| ORDER ordernamelist
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| PUBLIC NAME '=' exp
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{ mri_public($2, $4); }
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| PUBLIC NAME ',' exp
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{ mri_public($2, $4); }
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{ mri_public($2, $3); }
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{ mri_output_section($2, $4);}
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{ mri_output_section($2, $3);}
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{ mri_output_section($2, $4);}
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| ALIGN_K NAME '=' exp
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{ mri_align($2,$4); }
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| ALIGN_K NAME ',' exp
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{ mri_align($2,$4); }
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| ALIGNMOD NAME '=' exp
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{ mri_alignmod($2,$4); }
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| ALIGNMOD NAME ',' exp
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{ mri_alignmod($2,$4); }
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| ABSOLUTE mri_abs_name_list
241
| LOAD mri_load_name_list
244
| ALIAS NAME ',' NAME
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{ mri_alias($2,$4,0);}
247
{ mri_alias ($2, 0, (int) $4.integer); }
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{ mri_truncate ((unsigned int) $2.integer); }
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| EXTERN extern_name_list
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{ ldlex_script (); ldfile_open_command_file($2); }
257
{ ldlex_popstate (); }
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{ lang_add_entry ($2, FALSE); }
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ordernamelist ',' NAME { mri_order($3); }
265
| ordernamelist NAME { mri_order($2); }
272
| mri_load_name_list ',' NAME { mri_load($3); }
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{ mri_only_load($1); }
278
| mri_abs_name_list ',' NAME
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{ mri_only_load($3); }
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/* empty */ { $$ = NULL; }
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| casesymlist ',' NAME
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/* Parsed as expressions so that commas separate entries */
290
{ ldlex_expression (); }
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extern_name_list_body
292
{ ldlex_popstate (); }
294
extern_name_list_body:
296
{ ldlang_add_undef ($1, FALSE); }
297
| extern_name_list_body NAME
298
{ ldlang_add_undef ($2, FALSE); }
299
| extern_name_list_body ',' NAME
300
{ ldlang_add_undef ($3, FALSE); }
306
{ ldlex_popstate(); }
322
| floating_point_support
326
| TARGET_K '(' NAME ')'
327
{ lang_add_target($3); }
328
| SEARCH_DIR '(' filename ')'
329
{ ldfile_add_library_path ($3, FALSE); }
330
| OUTPUT '(' filename ')'
331
{ lang_add_output($3, 1); }
332
| OUTPUT_FORMAT '(' NAME ')'
333
{ lang_add_output_format ($3, (char *) NULL,
335
| OUTPUT_FORMAT '(' NAME ',' NAME ',' NAME ')'
336
{ lang_add_output_format ($3, $5, $7, 1); }
337
| OUTPUT_ARCH '(' NAME ')'
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{ ldfile_set_output_arch ($3, bfd_arch_unknown); }
339
| FORCE_COMMON_ALLOCATION
340
{ command_line.force_common_definition = TRUE ; }
341
| INHIBIT_COMMON_ALLOCATION
342
{ command_line.inhibit_common_definition = TRUE ; }
343
| INPUT '(' input_list ')'
345
{ lang_enter_group (); }
347
{ lang_leave_group (); }
348
| MAP '(' filename ')'
349
{ lang_add_map($3); }
351
{ ldlex_script (); ldfile_open_command_file($2); }
353
{ ldlex_popstate (); }
354
| NOCROSSREFS '(' nocrossref_list ')'
356
lang_add_nocrossref ($3);
358
| EXTERN '(' extern_name_list ')'
359
| INSERT_K AFTER NAME
360
{ lang_add_insert ($3, 0); }
361
| INSERT_K BEFORE NAME
362
{ lang_add_insert ($3, 1); }
363
| REGION_ALIAS '(' NAME ',' NAME ')'
364
{ lang_memory_region_alias ($3, $5); }
365
| LD_FEATURE '(' NAME ')'
366
{ lang_ld_feature ($3); }
371
{ lang_add_input_file($1,lang_input_file_is_search_file_enum,
373
| input_list ',' NAME
374
{ lang_add_input_file($3,lang_input_file_is_search_file_enum,
377
{ lang_add_input_file($2,lang_input_file_is_search_file_enum,
380
{ lang_add_input_file($1,lang_input_file_is_l_enum,
382
| input_list ',' LNAME
383
{ lang_add_input_file($3,lang_input_file_is_l_enum,
386
{ lang_add_input_file($2,lang_input_file_is_l_enum,
389
{ $<integer>$ = input_flags.add_DT_NEEDED_for_regular;
390
input_flags.add_DT_NEEDED_for_regular = TRUE; }
392
{ input_flags.add_DT_NEEDED_for_regular = $<integer>3; }
393
| input_list ',' AS_NEEDED '('
394
{ $<integer>$ = input_flags.add_DT_NEEDED_for_regular;
395
input_flags.add_DT_NEEDED_for_regular = TRUE; }
397
{ input_flags.add_DT_NEEDED_for_regular = $<integer>5; }
398
| input_list AS_NEEDED '('
399
{ $<integer>$ = input_flags.add_DT_NEEDED_for_regular;
400
input_flags.add_DT_NEEDED_for_regular = TRUE; }
402
{ input_flags.add_DT_NEEDED_for_regular = $<integer>4; }
406
SECTIONS '{' sec_or_group_p1 '}'
410
sec_or_group_p1 section
411
| sec_or_group_p1 statement_anywhere
417
{ lang_add_entry ($3, FALSE); }
419
| ASSERT_K {ldlex_expression ();} '(' exp ',' NAME ')'
421
lang_add_assignment (exp_assert ($4, $6)); }
424
/* The '*' and '?' cases are there because the lexer returns them as
425
separate tokens rather than as NAME. */
446
$$.exclude_name_list = NULL;
447
$$.section_flag_list = NULL;
449
| EXCLUDE_FILE '(' exclude_name_list ')' wildcard_name
453
$$.exclude_name_list = $3;
454
$$.section_flag_list = NULL;
456
| SORT_BY_NAME '(' wildcard_name ')'
460
$$.exclude_name_list = NULL;
461
$$.section_flag_list = NULL;
463
| SORT_BY_ALIGNMENT '(' wildcard_name ')'
466
$$.sorted = by_alignment;
467
$$.exclude_name_list = NULL;
468
$$.section_flag_list = NULL;
470
| SORT_NONE '(' wildcard_name ')'
474
$$.exclude_name_list = NULL;
475
$$.section_flag_list = NULL;
477
| SORT_BY_NAME '(' SORT_BY_ALIGNMENT '(' wildcard_name ')' ')'
480
$$.sorted = by_name_alignment;
481
$$.exclude_name_list = NULL;
482
$$.section_flag_list = NULL;
484
| SORT_BY_NAME '(' SORT_BY_NAME '(' wildcard_name ')' ')'
488
$$.exclude_name_list = NULL;
489
$$.section_flag_list = NULL;
491
| SORT_BY_ALIGNMENT '(' SORT_BY_NAME '(' wildcard_name ')' ')'
494
$$.sorted = by_alignment_name;
495
$$.exclude_name_list = NULL;
496
$$.section_flag_list = NULL;
498
| SORT_BY_ALIGNMENT '(' SORT_BY_ALIGNMENT '(' wildcard_name ')' ')'
501
$$.sorted = by_alignment;
502
$$.exclude_name_list = NULL;
503
$$.section_flag_list = NULL;
505
| SORT_BY_NAME '(' EXCLUDE_FILE '(' exclude_name_list ')' wildcard_name ')'
509
$$.exclude_name_list = $5;
510
$$.section_flag_list = NULL;
512
| SORT_BY_INIT_PRIORITY '(' wildcard_name ')'
515
$$.sorted = by_init_priority;
516
$$.exclude_name_list = NULL;
517
$$.section_flag_list = NULL;
523
struct flag_info_list *n;
524
n = ((struct flag_info_list *) xmalloc (sizeof *n));
527
n->with = without_flags;
532
n->with = with_flags;
539
| sect_flag_list '&' NAME
541
struct flag_info_list *n;
542
n = ((struct flag_info_list *) xmalloc (sizeof *n));
545
n->with = without_flags;
550
n->with = with_flags;
560
INPUT_SECTION_FLAGS '(' sect_flag_list ')'
563
n = ((struct flag_info *) xmalloc (sizeof *n));
565
n->flags_initialized = FALSE;
566
n->not_with_flags = 0;
567
n->only_with_flags = 0;
573
exclude_name_list wildcard_name
575
struct name_list *tmp;
576
tmp = (struct name_list *) xmalloc (sizeof *tmp);
584
struct name_list *tmp;
585
tmp = (struct name_list *) xmalloc (sizeof *tmp);
593
file_NAME_list opt_comma wildcard_spec
595
struct wildcard_list *tmp;
596
tmp = (struct wildcard_list *) xmalloc (sizeof *tmp);
604
struct wildcard_list *tmp;
605
tmp = (struct wildcard_list *) xmalloc (sizeof *tmp);
612
input_section_spec_no_keep:
615
struct wildcard_spec tmp;
617
tmp.exclude_name_list = NULL;
619
tmp.section_flag_list = NULL;
620
lang_add_wild (&tmp, NULL, ldgram_had_keep);
624
struct wildcard_spec tmp;
626
tmp.exclude_name_list = NULL;
628
tmp.section_flag_list = $1;
629
lang_add_wild (&tmp, NULL, ldgram_had_keep);
631
| '[' file_NAME_list ']'
633
lang_add_wild (NULL, $2, ldgram_had_keep);
635
| sect_flags '[' file_NAME_list ']'
637
struct wildcard_spec tmp;
639
tmp.exclude_name_list = NULL;
641
tmp.section_flag_list = $1;
642
lang_add_wild (&tmp, $3, ldgram_had_keep);
644
| wildcard_spec '(' file_NAME_list ')'
646
lang_add_wild (&$1, $3, ldgram_had_keep);
648
| sect_flags wildcard_spec '(' file_NAME_list ')'
650
$2.section_flag_list = $1;
651
lang_add_wild (&$2, $4, ldgram_had_keep);
656
input_section_spec_no_keep
658
{ ldgram_had_keep = TRUE; }
659
input_section_spec_no_keep ')'
660
{ ldgram_had_keep = FALSE; }
665
| CREATE_OBJECT_SYMBOLS
667
lang_add_attribute(lang_object_symbols_statement_enum);
673
lang_add_attribute(lang_constructors_statement_enum);
675
| SORT_BY_NAME '(' CONSTRUCTORS ')'
677
constructors_sorted = TRUE;
678
lang_add_attribute (lang_constructors_statement_enum);
681
| length '(' mustbe_exp ')'
683
lang_add_data ((int) $1, $3);
686
| FILL '(' fill_exp ')'
690
| ASSERT_K {ldlex_expression ();} '(' exp ',' NAME ')' end
692
lang_add_assignment (exp_assert ($4, $6)); }
694
{ ldlex_script (); ldfile_open_command_file($2); }
695
statement_list_opt END
696
{ ldlex_popstate (); }
700
statement_list statement
725
$$ = exp_get_fill ($1, 0, "fill value");
732
| { $$ = (fill_type *) 0; }
762
lang_add_assignment (exp_assign ($1, $3, FALSE));
764
| NAME assign_op mustbe_exp
766
lang_add_assignment (exp_assign ($1,
772
| HIDDEN '(' NAME '=' mustbe_exp ')'
774
lang_add_assignment (exp_assign ($3, $5, TRUE));
776
| PROVIDE '(' NAME '=' mustbe_exp ')'
778
lang_add_assignment (exp_provide ($3, $5, FALSE));
780
| PROVIDE_HIDDEN '(' NAME '=' mustbe_exp ')'
782
lang_add_assignment (exp_provide ($3, $5, TRUE));
792
MEMORY '{' memory_spec_list_opt '}'
795
memory_spec_list_opt: memory_spec_list | ;
798
memory_spec_list opt_comma memory_spec
804
{ region = lang_memory_region_lookup ($1, TRUE); }
806
origin_spec opt_comma length_spec
809
{ ldlex_script (); ldfile_open_command_file($2); }
810
memory_spec_list_opt END
811
{ ldlex_popstate (); }
815
ORIGIN '=' mustbe_exp
817
region->origin = exp_get_vma ($3, 0, "origin");
818
region->current = region->origin;
823
LENGTH '=' mustbe_exp
825
region->length = exp_get_vma ($3, -1, "length");
831
{ /* dummy action to avoid bison 1.25 error message */ }
832
| '(' attributes_list ')'
837
| attributes_list attributes_string
842
{ lang_set_flags (region, $1, 0); }
844
{ lang_set_flags (region, $2, 1); }
848
STARTUP '(' filename ')'
849
{ lang_startup($3); }
853
HLL '(' high_level_library_NAME_list ')'
855
{ ldemul_hll((char *)NULL); }
858
high_level_library_NAME_list:
859
high_level_library_NAME_list opt_comma filename
867
SYSLIB '(' low_level_library_NAME_list ')'
868
; low_level_library_NAME_list:
869
low_level_library_NAME_list opt_comma filename
870
{ ldemul_syslib($3); }
874
floating_point_support:
876
{ lang_float(TRUE); }
878
{ lang_float(FALSE); }
886
| NAME nocrossref_list
888
struct lang_nocrossref *n;
890
n = (struct lang_nocrossref *) xmalloc (sizeof *n);
895
| NAME ',' nocrossref_list
897
struct lang_nocrossref *n;
899
n = (struct lang_nocrossref *) xmalloc (sizeof *n);
906
mustbe_exp: { ldlex_expression (); }
908
{ ldlex_popstate (); $$=$2;}
913
{ $$ = exp_unop ('-', $2); }
916
| NEXT '(' exp ')' %prec UNARY
917
{ $$ = exp_unop ((int) $1,$3); }
918
| '!' exp %prec UNARY
919
{ $$ = exp_unop ('!', $2); }
920
| '+' exp %prec UNARY
922
| '~' exp %prec UNARY
923
{ $$ = exp_unop ('~', $2);}
926
{ $$ = exp_binop ('*', $1, $3); }
928
{ $$ = exp_binop ('/', $1, $3); }
930
{ $$ = exp_binop ('%', $1, $3); }
932
{ $$ = exp_binop ('+', $1, $3); }
934
{ $$ = exp_binop ('-' , $1, $3); }
936
{ $$ = exp_binop (LSHIFT , $1, $3); }
938
{ $$ = exp_binop (RSHIFT , $1, $3); }
940
{ $$ = exp_binop (EQ , $1, $3); }
942
{ $$ = exp_binop (NE , $1, $3); }
944
{ $$ = exp_binop (LE , $1, $3); }
946
{ $$ = exp_binop (GE , $1, $3); }
948
{ $$ = exp_binop ('<' , $1, $3); }
950
{ $$ = exp_binop ('>' , $1, $3); }
952
{ $$ = exp_binop ('&' , $1, $3); }
954
{ $$ = exp_binop ('^' , $1, $3); }
956
{ $$ = exp_binop ('|' , $1, $3); }
957
| exp '?' exp ':' exp
958
{ $$ = exp_trinop ('?' , $1, $3, $5); }
960
{ $$ = exp_binop (ANDAND , $1, $3); }
962
{ $$ = exp_binop (OROR , $1, $3); }
963
| DEFINED '(' NAME ')'
964
{ $$ = exp_nameop (DEFINED, $3); }
966
{ $$ = exp_bigintop ($1.integer, $1.str); }
968
{ $$ = exp_nameop (SIZEOF_HEADERS,0); }
970
| ALIGNOF '(' NAME ')'
971
{ $$ = exp_nameop (ALIGNOF,$3); }
972
| SIZEOF '(' NAME ')'
973
{ $$ = exp_nameop (SIZEOF,$3); }
975
{ $$ = exp_nameop (ADDR,$3); }
976
| LOADADDR '(' NAME ')'
977
{ $$ = exp_nameop (LOADADDR,$3); }
978
| CONSTANT '(' NAME ')'
979
{ $$ = exp_nameop (CONSTANT,$3); }
980
| ABSOLUTE '(' exp ')'
981
{ $$ = exp_unop (ABSOLUTE, $3); }
982
| ALIGN_K '(' exp ')'
983
{ $$ = exp_unop (ALIGN_K,$3); }
984
| ALIGN_K '(' exp ',' exp ')'
985
{ $$ = exp_binop (ALIGN_K,$3,$5); }
986
| DATA_SEGMENT_ALIGN '(' exp ',' exp ')'
987
{ $$ = exp_binop (DATA_SEGMENT_ALIGN, $3, $5); }
988
| DATA_SEGMENT_RELRO_END '(' exp ',' exp ')'
989
{ $$ = exp_binop (DATA_SEGMENT_RELRO_END, $5, $3); }
990
| DATA_SEGMENT_END '(' exp ')'
991
{ $$ = exp_unop (DATA_SEGMENT_END, $3); }
992
| SEGMENT_START '(' NAME ',' exp ')'
993
{ /* The operands to the expression node are
994
placed in the opposite order from the way
995
in which they appear in the script as
996
that allows us to reuse more code in
998
$$ = exp_binop (SEGMENT_START,
1000
exp_nameop (NAME, $3)); }
1002
{ $$ = exp_unop (ALIGN_K,$3); }
1004
{ $$ = exp_nameop (NAME,$1); }
1005
| MAX_K '(' exp ',' exp ')'
1006
{ $$ = exp_binop (MAX_K, $3, $5 ); }
1007
| MIN_K '(' exp ',' exp ')'
1008
{ $$ = exp_binop (MIN_K, $3, $5 ); }
1009
| ASSERT_K '(' exp ',' NAME ')'
1010
{ $$ = exp_assert ($3, $5); }
1011
| ORIGIN '(' NAME ')'
1012
{ $$ = exp_nameop (ORIGIN, $3); }
1013
| LENGTH '(' NAME ')'
1014
{ $$ = exp_nameop (LENGTH, $3); }
1019
AT '>' NAME { $$ = $3; }
1024
AT '(' exp ')' { $$ = $3; }
1029
ALIGN_K '(' exp ')' { $$ = $3; }
1034
SUBALIGN '(' exp ')' { $$ = $3; }
1039
ONLY_IF_RO { $$ = ONLY_IF_RO; }
1040
| ONLY_IF_RW { $$ = ONLY_IF_RW; }
1041
| SPECIAL { $$ = SPECIAL; }
1045
section: NAME { ldlex_expression(); }
1049
opt_subalign { ldlex_popstate (); ldlex_script (); }
1053
lang_enter_output_section_statement($1, $3,
1058
'}' { ldlex_popstate (); ldlex_expression (); }
1059
memspec_opt memspec_at_opt phdr_opt fill_opt
1062
lang_leave_output_section_statement ($17, $14, $16, $15);
1067
{ ldlex_expression (); }
1068
opt_exp_without_type opt_nocrossrefs opt_at opt_subalign
1069
{ ldlex_popstate (); ldlex_script (); }
1072
lang_enter_overlay ($3, $6);
1076
{ ldlex_popstate (); ldlex_expression (); }
1077
memspec_opt memspec_at_opt phdr_opt fill_opt
1080
lang_leave_overlay ($5, (int) $4,
1081
$16, $13, $15, $14);
1084
| /* The GROUP case is just enough to support the gcc
1085
svr3.ifile script. It is not intended to be full
1086
support. I'm not even sure what GROUP is supposed
1088
GROUP { ldlex_expression (); }
1092
lang_add_assignment (exp_assign (".", $3, FALSE));
1094
'{' sec_or_group_p1 '}'
1096
{ ldlex_script (); ldfile_open_command_file($2); }
1098
{ ldlex_popstate (); }
1102
NOLOAD { sectype = noload_section; }
1103
| DSECT { sectype = noalloc_section; }
1104
| COPY { sectype = noalloc_section; }
1105
| INFO { sectype = noalloc_section; }
1106
| OVERLAY { sectype = noalloc_section; }
1111
| /* EMPTY */ { sectype = normal_section; }
1112
| '(' ')' { sectype = normal_section; }
1116
exp atype ':' { $$ = $1; }
1117
| atype ':' { $$ = (etree_type *)NULL; }
1118
| /* The BIND cases are to support the gcc svr3.ifile
1119
script. They aren't intended to implement full
1120
support for the BIND keyword. I'm not even sure
1121
what BIND is supposed to mean. */
1122
BIND '(' exp ')' atype ':' { $$ = $3; }
1123
| BIND '(' exp ')' BLOCK '(' exp ')' atype ':'
1127
opt_exp_without_type:
1128
exp ':' { $$ = $1; }
1129
| ':' { $$ = (etree_type *) NULL; }
1142
| { $$ = DEFAULT_MEMORY_REGION; }
1152
struct lang_output_section_phdr_list *n;
1154
n = ((struct lang_output_section_phdr_list *)
1155
xmalloc (sizeof *n));
1169
lang_enter_overlay_section ($2);
1171
'{' statement_list_opt '}'
1172
{ ldlex_popstate (); ldlex_expression (); }
1176
lang_leave_overlay_section ($9, $8);
1182
PHDRS '{' phdr_list '}'
1191
NAME { ldlex_expression (); }
1192
phdr_type phdr_qualifiers { ldlex_popstate (); }
1195
lang_new_phdr ($1, $3, $4.filehdr, $4.phdrs, $4.at,
1205
if ($1->type.node_class == etree_name
1206
&& $1->type.node_code == NAME)
1210
static const char * const phdr_types[] =
1212
"PT_NULL", "PT_LOAD", "PT_DYNAMIC",
1213
"PT_INTERP", "PT_NOTE", "PT_SHLIB",
1219
i < sizeof phdr_types / sizeof phdr_types[0];
1221
if (strcmp (s, phdr_types[i]) == 0)
1226
if (i == sizeof phdr_types / sizeof phdr_types[0])
1228
if (strcmp (s, "PT_GNU_EH_FRAME") == 0)
1229
$$ = exp_intop (0x6474e550);
1230
else if (strcmp (s, "PT_GNU_STACK") == 0)
1231
$$ = exp_intop (0x6474e551);
1235
%X%P:%S: unknown phdr type `%s' (try integer literal)\n"),
1247
memset (&$$, 0, sizeof (struct phdr_info));
1249
| NAME phdr_val phdr_qualifiers
1252
if (strcmp ($1, "FILEHDR") == 0 && $2 == NULL)
1254
else if (strcmp ($1, "PHDRS") == 0 && $2 == NULL)
1256
else if (strcmp ($1, "FLAGS") == 0 && $2 != NULL)
1259
einfo (_("%X%P:%S: PHDRS syntax error at `%s'\n"),
1262
| AT '(' exp ')' phdr_qualifiers
1282
ldlex_version_file ();
1283
PUSH_ERROR (_("dynamic list"));
1294
| dynamic_list_nodes dynamic_list_node
1298
'{' dynamic_list_tag '}' ';'
1304
lang_append_dynamic_list ($1);
1308
/* This syntax is used within an external version script file. */
1310
version_script_file:
1312
ldlex_version_file ();
1313
PUSH_ERROR (_("VERSION script"));
1322
/* This is used within a normal linker script file. */
1326
ldlex_version_script ();
1328
VERSIONK '{' vers_nodes '}'
1336
| vers_nodes vers_node
1340
'{' vers_tag '}' ';'
1342
lang_register_vers_node (NULL, $2, NULL);
1344
| VERS_TAG '{' vers_tag '}' ';'
1346
lang_register_vers_node ($1, $3, NULL);
1348
| VERS_TAG '{' vers_tag '}' verdep ';'
1350
lang_register_vers_node ($1, $3, $5);
1357
$$ = lang_add_vers_depend (NULL, $1);
1361
$$ = lang_add_vers_depend ($1, $2);
1368
$$ = lang_new_vers_node (NULL, NULL);
1372
$$ = lang_new_vers_node ($1, NULL);
1374
| GLOBAL ':' vers_defns ';'
1376
$$ = lang_new_vers_node ($3, NULL);
1378
| LOCAL ':' vers_defns ';'
1380
$$ = lang_new_vers_node (NULL, $3);
1382
| GLOBAL ':' vers_defns ';' LOCAL ':' vers_defns ';'
1384
$$ = lang_new_vers_node ($3, $7);
1391
$$ = lang_new_vers_pattern (NULL, $1, ldgram_vers_current_lang, FALSE);
1395
$$ = lang_new_vers_pattern (NULL, $1, ldgram_vers_current_lang, TRUE);
1397
| vers_defns ';' VERS_IDENTIFIER
1399
$$ = lang_new_vers_pattern ($1, $3, ldgram_vers_current_lang, FALSE);
1401
| vers_defns ';' NAME
1403
$$ = lang_new_vers_pattern ($1, $3, ldgram_vers_current_lang, TRUE);
1405
| vers_defns ';' EXTERN NAME '{'
1407
$<name>$ = ldgram_vers_current_lang;
1408
ldgram_vers_current_lang = $4;
1410
vers_defns opt_semicolon '}'
1412
struct bfd_elf_version_expr *pat;
1413
for (pat = $7; pat->next != NULL; pat = pat->next);
1416
ldgram_vers_current_lang = $<name>6;
1420
$<name>$ = ldgram_vers_current_lang;
1421
ldgram_vers_current_lang = $2;
1423
vers_defns opt_semicolon '}'
1426
ldgram_vers_current_lang = $<name>4;
1430
$$ = lang_new_vers_pattern (NULL, "global", ldgram_vers_current_lang, FALSE);
1432
| vers_defns ';' GLOBAL
1434
$$ = lang_new_vers_pattern ($1, "global", ldgram_vers_current_lang, FALSE);
1438
$$ = lang_new_vers_pattern (NULL, "local", ldgram_vers_current_lang, FALSE);
1440
| vers_defns ';' LOCAL
1442
$$ = lang_new_vers_pattern ($1, "local", ldgram_vers_current_lang, FALSE);
1446
$$ = lang_new_vers_pattern (NULL, "extern", ldgram_vers_current_lang, FALSE);
1448
| vers_defns ';' EXTERN
1450
$$ = lang_new_vers_pattern ($1, "extern", ldgram_vers_current_lang, FALSE);
1464
if (ldfile_assumed_script)
1465
einfo (_("%P:%s: file format not recognized; treating as linker script\n"),
1467
if (error_index > 0 && error_index < ERROR_NAME_MAX)
1468
einfo ("%P%F:%S: %s in %s\n", NULL, arg, error_names[error_index - 1]);
1470
einfo ("%P%F:%S: %s\n", NULL, arg);