-/* A YACC grammer to parse a superset of the AT&T linker scripting languaue.
- Copyright (C) 1991, 1993 Free Software Foundation, Inc.
+/* A YACC grammar to parse a superset of the AT&T linker scripting language.
+ Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+ 2001, 2002 Free Software Foundation, Inc.
Written by Steve Chamberlain of Cygnus Support (steve@cygnus.com).
This file is part of GNU ld.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
%{
/*
#include "ldexp.h"
#include "ldver.h"
#include "ldlang.h"
-#include "ldemul.h"
#include "ldfile.h"
+#include "ldemul.h"
#include "ldmisc.h"
#include "ldmain.h"
#include "mri.h"
+#include "ldctor.h"
#include "ldlex.h"
+#ifndef YYDEBUG
#define YYDEBUG 1
+#endif
-static int typebits;
+static enum section_type sectype;
lang_memory_region_type *region;
-
-char *current_file;
boolean ldgram_want_filename = true;
-boolean had_script = false;
+FILE * saved_script_handle = NULL;
boolean force_make_executable = false;
boolean ldgram_in_script = false;
boolean ldgram_had_equals = false;
-
+boolean ldgram_had_keep = false;
+char *ldgram_vers_current_lang = NULL;
#define ERROR_NAME_MAX 20
static char *error_names[ERROR_NAME_MAX];
%}
%union {
bfd_vma integer;
+ struct big_int
+ {
+ bfd_vma integer;
+ char *str;
+ } bigint;
+ fill_type *fill;
char *name;
+ const char *cname;
+ struct wildcard_spec wildcard;
+ struct wildcard_list *wildcard_list;
+ struct name_list *name_list;
int token;
union etree_union *etree;
+ struct phdr_info
+ {
+ boolean filehdr;
+ boolean phdrs;
+ union etree_union *at;
+ union etree_union *flags;
+ } phdr;
+ struct lang_nocrossref *nocrossref;
+ struct lang_output_section_phdr_list *section_phdr;
+ struct bfd_elf_version_deps *deflist;
+ struct bfd_elf_version_expr *versyms;
+ struct bfd_elf_version_tree *versnode;
}
-%type <etree> exp opt_exp_with_type mustbe_exp opt_at
-%type <integer> fill_opt
-%type <name> memspec_opt
-%token <integer> INT
-%token <name> NAME
-%type <integer> length
+%type <etree> exp opt_exp_with_type mustbe_exp opt_at phdr_type phdr_val
+%type <etree> opt_exp_without_type
+%type <fill> fill_opt fill_exp
+%type <name_list> exclude_name_list
+%type <wildcard_list> file_NAME_list
+%type <name> memspec_opt casesymlist
+%type <name> memspec_at_opt
+%type <cname> wildcard_name
+%type <wildcard> wildcard_spec
+%token <bigint> INT
+%token <name> NAME LNAME
+%type <integer> length
+%type <phdr> phdr_qualifiers
+%type <nocrossref> nocrossref_list
+%type <section_phdr> phdr_opt
+%type <integer> opt_nocrossrefs
%right <token> PLUSEQ MINUSEQ MULTEQ DIVEQ '=' LSHIFTEQ RSHIFTEQ ANDEQ OREQ
%right <token> '?' ':'
%right UNARY
%token END
%left <token> '('
-%token <token> ALIGN_K BLOCK QUAD LONG SHORT BYTE
-%token SECTIONS
+%token <token> ALIGN_K BLOCK BIND QUAD SQUAD LONG SHORT BYTE
+%token SECTIONS PHDRS SORT DATA_SEGMENT_ALIGN DATA_SEGMENT_END
%token '{' '}'
%token SIZEOF_HEADERS OUTPUT_FORMAT FORCE_COMMON_ALLOCATION OUTPUT_ARCH
+%token INHIBIT_COMMON_ALLOCATION
%token SIZEOF_HEADERS
%token INCLUDE
%token MEMORY DEFSYMEND
%token NOLOAD DSECT COPY INFO OVERLAY
-%token NAME DEFINED TARGET_K SEARCH_DIR MAP ENTRY
-%token <integer> SIZEOF NEXT ADDR
-%token STARTUP HLL SYSLIB FLOAT NOFLOAT
+%token NAME LNAME DEFINED TARGET_K SEARCH_DIR MAP ENTRY
+%token <integer> NEXT
+%token SIZEOF ADDR LOADADDR MAX_K MIN_K
+%token STARTUP HLL SYSLIB FLOAT NOFLOAT NOCROSSREFS
%token ORIGIN FILL
-%token LENGTH CREATE_OBJECT_SYMBOLS INPUT OUTPUT CONSTRUCTORS
-%token ALIGNMOD AT
-%type <token> assign_op
+%token LENGTH CREATE_OBJECT_SYMBOLS INPUT GROUP OUTPUT CONSTRUCTORS
+%token ALIGNMOD AT PROVIDE
+%type <token> assign_op atype attributes_opt
%type <name> filename
-%token CHIP LIST SECT ABSOLUTE LOAD NEWLINE ENDWORD ORDER NAMEWORD
+%token CHIP LIST SECT ABSOLUTE LOAD NEWLINE ENDWORD ORDER NAMEWORD ASSERT_K
%token FORMAT PUBLIC DEFSYMEND BASE ALIAS TRUNCATE REL
-%token INPUT_SCRIPT INPUT_MRI_SCRIPT INPUT_DEFSYM
+%token INPUT_SCRIPT INPUT_MRI_SCRIPT INPUT_DEFSYM CASE EXTERN START
+%token <name> VERS_TAG VERS_IDENTIFIER
+%token GLOBAL LOCAL VERSIONK INPUT_VERSION_SCRIPT
+%token KEEP
+%token EXCLUDE_FILE
+%type <versyms> vers_defns
+%type <versnode> vers_tag
+%type <deflist> verdep
%%
file:
INPUT_SCRIPT script_file
| INPUT_MRI_SCRIPT mri_script_file
+ | INPUT_VERSION_SCRIPT version_script_file
| INPUT_DEFSYM defsym_expr
;
ldlex_popstate();
lang_add_assignment(exp_assop($3,$2,$4));
}
+ ;
/* SYNTAX WITHIN AN MRI SCRIPT FILE */
mri_script_file:
- { ldlex_mri_script();
- PUSH_ERROR("MRI style script");
+ {
+ ldlex_mri_script ();
+ PUSH_ERROR (_("MRI style script"));
}
mri_script_lines
- { ldlex_popstate();
- POP_ERROR();
+ {
+ ldlex_popstate ();
+ mri_draw_tree ();
+ POP_ERROR ();
}
;
CHIP exp
| CHIP exp ',' exp
| NAME {
- einfo("%P%F: unrecognised keyword in MRI style script '%s'\n",$1);
+ einfo(_("%P%F: unrecognised keyword in MRI style script '%s'\n"),$1);
}
| LIST {
- write_map = true;
config.map_filename = "-";
}
| ORDER ordernamelist
| ENDWORD
- | PUBLIC NAME '=' exp
+ | PUBLIC NAME '=' exp
{ mri_public($2, $4); }
- | PUBLIC NAME ',' exp
+ | PUBLIC NAME ',' exp
{ mri_public($2, $4); }
| PUBLIC NAME exp
{ mri_public($2, $3); }
| FORMAT NAME
{ mri_format($2); }
- | SECT NAME ',' exp
+ | SECT NAME ',' exp
{ mri_output_section($2, $4);}
| SECT NAME exp
{ mri_output_section($2, $3);}
{ mri_output_section($2, $4);}
| ALIGN_K NAME '=' exp
{ mri_align($2,$4); }
+ | ALIGN_K NAME ',' exp
+ { mri_align($2,$4); }
| ALIGNMOD NAME '=' exp
{ mri_alignmod($2,$4); }
+ | ALIGNMOD NAME ',' exp
+ { mri_alignmod($2,$4); }
| ABSOLUTE mri_abs_name_list
| LOAD mri_load_name_list
| NAMEWORD NAME
| ALIAS NAME ',' NAME
{ mri_alias($2,$4,0);}
| ALIAS NAME ',' INT
- { mri_alias($2,0,(int) $4);}
+ { mri_alias ($2, 0, (int) $4.integer); }
| BASE exp
{ mri_base($2); }
- | TRUNCATE INT
- { mri_truncate((unsigned int) $2); }
+ | TRUNCATE INT
+ { mri_truncate ((unsigned int) $2.integer); }
+ | CASE casesymlist
+ | EXTERN extern_name_list
+ | INCLUDE filename
+ { ldlex_script (); ldfile_open_command_file($2); }
+ mri_script_lines END
+ { ldlex_popstate (); }
+ | START NAME
+ { lang_add_entry ($2, false); }
|
;
{ mri_only_load($3); }
;
+casesymlist:
+ /* empty */ { $$ = NULL; }
+ | NAME
+ | casesymlist ',' NAME
+ ;
+
+extern_name_list:
+ NAME
+ { ldlang_add_undef ($1); }
+ | extern_name_list NAME
+ { ldlang_add_undef ($2); }
+ | extern_name_list ',' NAME
+ { ldlang_add_undef ($3); }
+ ;
+
script_file:
{
ldlex_both();
ifile_p1:
memory
| sections
+ | phdrs
| startup
| high_level_library
| low_level_library
| floating_point_support
| statement_anywhere
+ | version
| ';'
| TARGET_K '(' NAME ')'
{ lang_add_target($3); }
| SEARCH_DIR '(' filename ')'
- { ldfile_add_library_path($3); }
+ { ldfile_add_library_path ($3, false); }
| OUTPUT '(' filename ')'
{ lang_add_output($3, 1); }
| OUTPUT_FORMAT '(' NAME ')'
- { lang_add_output_format($3, 1); }
+ { lang_add_output_format ($3, (char *) NULL,
+ (char *) NULL, 1); }
+ | OUTPUT_FORMAT '(' NAME ',' NAME ',' NAME ')'
+ { lang_add_output_format ($3, $5, $7, 1); }
| OUTPUT_ARCH '(' NAME ')'
{ ldfile_set_output_arch($3); }
| FORCE_COMMON_ALLOCATION
{ command_line.force_common_definition = true ; }
+ | INHIBIT_COMMON_ALLOCATION
+ { command_line.inhibit_common_definition = true ; }
| INPUT '(' input_list ')'
+ | GROUP
+ { lang_enter_group (); }
+ '(' input_list ')'
+ { lang_leave_group (); }
| MAP '(' filename ')'
{ lang_add_map($3); }
| INCLUDE filename
- { ldfile_open_command_file($2); } ifile_list END
+ { ldlex_script (); ldfile_open_command_file($2); }
+ ifile_list END
+ { ldlex_popstate (); }
+ | NOCROSSREFS '(' nocrossref_list ')'
+ {
+ lang_add_nocrossref ($3);
+ }
+ | EXTERN '(' extern_name_list ')'
;
input_list:
| input_list NAME
{ lang_add_input_file($2,lang_input_file_is_search_file_enum,
(char *)NULL); }
+ | LNAME
+ { lang_add_input_file($1,lang_input_file_is_l_enum,
+ (char *)NULL); }
+ | input_list ',' LNAME
+ { lang_add_input_file($3,lang_input_file_is_l_enum,
+ (char *)NULL); }
+ | input_list LNAME
+ { lang_add_input_file($2,lang_input_file_is_l_enum,
+ (char *)NULL); }
;
sections:
statement_anywhere:
ENTRY '(' NAME ')'
- { lang_add_entry($3); }
+ { lang_add_entry ($3, false); }
| assignment end
;
-file_NAME_list:
+/* The '*' and '?' cases are there because the lexer returns them as
+ separate tokens rather than as NAME. */
+wildcard_name:
NAME
- { lang_add_wild($1, current_file); }
- | file_NAME_list opt_comma NAME
- { lang_add_wild($3, current_file); }
+ {
+ $$ = $1;
+ }
+ | '*'
+ {
+ $$ = "*";
+ }
+ | '?'
+ {
+ $$ = "?";
+ }
;
-input_section_spec:
+wildcard_spec:
+ wildcard_name
+ {
+ $$.name = $1;
+ $$.sorted = false;
+ $$.exclude_name_list = NULL;
+ }
+ | EXCLUDE_FILE '(' exclude_name_list ')' wildcard_name
+ {
+ $$.name = $5;
+ $$.sorted = false;
+ $$.exclude_name_list = $3;
+ }
+ | SORT '(' wildcard_name ')'
+ {
+ $$.name = $3;
+ $$.sorted = true;
+ $$.exclude_name_list = NULL;
+ }
+ | SORT '(' EXCLUDE_FILE '(' exclude_name_list ')' wildcard_name ')'
+ {
+ $$.name = $7;
+ $$.sorted = true;
+ $$.exclude_name_list = $5;
+ }
+ ;
+
+exclude_name_list:
+ exclude_name_list wildcard_name
+ {
+ struct name_list *tmp;
+ tmp = (struct name_list *) xmalloc (sizeof *tmp);
+ tmp->name = $2;
+ tmp->next = $1;
+ $$ = tmp;
+ }
+ |
+ wildcard_name
+ {
+ struct name_list *tmp;
+ tmp = (struct name_list *) xmalloc (sizeof *tmp);
+ tmp->name = $1;
+ tmp->next = NULL;
+ $$ = tmp;
+ }
+ ;
+
+file_NAME_list:
+ file_NAME_list opt_comma wildcard_spec
+ {
+ struct wildcard_list *tmp;
+ tmp = (struct wildcard_list *) xmalloc (sizeof *tmp);
+ tmp->next = $1;
+ tmp->spec = $3;
+ $$ = tmp;
+ }
+ |
+ wildcard_spec
+ {
+ struct wildcard_list *tmp;
+ tmp = (struct wildcard_list *) xmalloc (sizeof *tmp);
+ tmp->next = NULL;
+ tmp->spec = $1;
+ $$ = tmp;
+ }
+ ;
+
+input_section_spec_no_keep:
NAME
- {
- lang_add_wild((char *)NULL, $1);
- }
- | '['
{
- current_file = (char *)NULL;
+ struct wildcard_spec tmp;
+ tmp.name = $1;
+ tmp.exclude_name_list = NULL;
+ tmp.sorted = false;
+ lang_add_wild (&tmp, NULL, ldgram_had_keep);
}
- file_NAME_list
- ']'
- | NAME
+ | '[' file_NAME_list ']'
{
- current_file =$1;
+ lang_add_wild (NULL, $2, ldgram_had_keep);
}
- '(' file_NAME_list ')'
- | '*'
+ | wildcard_spec '(' file_NAME_list ')'
{
- current_file = (char *)NULL;
+ lang_add_wild (&$1, $3, ldgram_had_keep);
}
- '(' file_NAME_list ')'
+ ;
+
+input_section_spec:
+ input_section_spec_no_keep
+ | KEEP '('
+ { ldgram_had_keep = true; }
+ input_section_spec_no_keep ')'
+ { ldgram_had_keep = false; }
;
statement:
lang_add_attribute(lang_constructors_statement_enum);
}
+ | SORT '(' CONSTRUCTORS ')'
+ {
+ constructors_sorted = true;
+ lang_add_attribute (lang_constructors_statement_enum);
+ }
| input_section_spec
- | length '(' exp ')'
+ | length '(' mustbe_exp ')'
{
- lang_add_data((int) $1,$3);
+ lang_add_data ((int) $1, $3);
}
- | FILL '(' exp ')'
+ | FILL '(' fill_exp ')'
{
- lang_add_fill
- (exp_get_value_int($3,
- 0,
- "fill value",
- lang_first_phase_enum));
+ lang_add_fill ($3);
}
;
length:
QUAD
{ $$ = $1; }
+ | SQUAD
+ { $$ = $1; }
| LONG
{ $$ = $1; }
| SHORT
{ $$ = $1; }
;
-fill_opt:
- '=' mustbe_exp
+fill_exp:
+ mustbe_exp
{
- $$ = exp_get_value_int($2,
- 0,
- "fill value",
- lang_first_phase_enum);
+ $$ = exp_get_fill ($1,
+ 0,
+ "fill value",
+ lang_first_phase_enum);
}
- | { $$ = 0; }
;
-
+fill_opt:
+ '=' fill_exp
+ { $$ = $2; }
+ | { $$ = (fill_type *) 0; }
+ ;
assign_op:
PLUSEQ
assignment:
NAME '=' mustbe_exp
{
- lang_add_assignment(exp_assop($2,$1,$3));
+ lang_add_assignment (exp_assop ($2, $1, $3));
}
| NAME assign_op mustbe_exp
{
-
-lang_add_assignment(exp_assop('=',$1,exp_binop($2,exp_nameop(NAME,$1),$3)));
+ lang_add_assignment (exp_assop ('=', $1,
+ exp_binop ($2,
+ exp_nameop (NAME,
+ $1),
+ $3)));
+ }
+ | PROVIDE '(' NAME '=' mustbe_exp ')'
+ {
+ lang_add_assignment (exp_provide ($3, $5));
}
-
;
attributes_opt ':'
origin_spec opt_comma length_spec
- ; origin_spec:
+ ;
+
+origin_spec:
ORIGIN '=' mustbe_exp
{ region->current =
region->origin =
exp_get_vma($3, 0L,"origin", lang_first_phase_enum);
}
- ; length_spec:
+ ;
+
+length_spec:
LENGTH '=' mustbe_exp
{ region->length = exp_get_vma($3,
~((bfd_vma)0),
"length",
lang_first_phase_enum);
}
-
+ ;
attributes_opt:
- '(' NAME ')'
- {
- lang_set_flags(®ion->flags, $2);
- }
- |
-
+ /* empty */
+ { /* dummy action to avoid bison 1.25 error message */ }
+ | '(' attributes_list ')'
+ ;
+
+attributes_list:
+ attributes_string
+ | attributes_list attributes_string
+ ;
+
+attributes_string:
+ NAME
+ { lang_set_flags (region, $1, 0); }
+ | '!' NAME
+ { lang_set_flags (region, $2, 1); }
;
startup:
{ lang_float(false); }
;
+nocrossref_list:
+ /* empty */
+ {
+ $$ = NULL;
+ }
+ | NAME nocrossref_list
+ {
+ struct lang_nocrossref *n;
+
+ n = (struct lang_nocrossref *) xmalloc (sizeof *n);
+ n->name = $1;
+ n->next = $2;
+ $$ = n;
+ }
+ | NAME ',' nocrossref_list
+ {
+ struct lang_nocrossref *n;
+
+ n = (struct lang_nocrossref *) xmalloc (sizeof *n);
+ n->name = $1;
+ n->next = $3;
+ $$ = n;
+ }
+ ;
mustbe_exp: { ldlex_expression(); }
exp
| DEFINED '(' NAME ')'
{ $$ = exp_nameop(DEFINED, $3); }
| INT
- { $$ = exp_intop($1); }
+ { $$ = exp_bigintop ($1.integer, $1.str); }
| SIZEOF_HEADERS
{ $$ = exp_nameop(SIZEOF_HEADERS,0); }
{ $$ = exp_nameop(SIZEOF,$3); }
| ADDR '(' NAME ')'
{ $$ = exp_nameop(ADDR,$3); }
+ | LOADADDR '(' NAME ')'
+ { $$ = exp_nameop(LOADADDR,$3); }
| ABSOLUTE '(' exp ')'
{ $$ = exp_unop(ABSOLUTE, $3); }
| ALIGN_K '(' exp ')'
{ $$ = exp_unop(ALIGN_K,$3); }
+ | DATA_SEGMENT_ALIGN '(' exp ',' exp ')'
+ { $$ = exp_binop (DATA_SEGMENT_ALIGN, $3, $5); }
+ | DATA_SEGMENT_END '(' exp ')'
+ { $$ = exp_unop(DATA_SEGMENT_END, $3); }
+ | BLOCK '(' exp ')'
+ { $$ = exp_unop(ALIGN_K,$3); }
| NAME
{ $$ = exp_nameop(NAME,$1); }
+ | MAX_K '(' exp ',' exp ')'
+ { $$ = exp_binop (MAX_K, $3, $5 ); }
+ | MIN_K '(' exp ',' exp ')'
+ { $$ = exp_binop (MIN_K, $3, $5 ); }
+ | ASSERT_K '(' exp ',' NAME ')'
+ { $$ = exp_assert ($3, $5); }
;
+memspec_at_opt:
+ AT '>' NAME { $$ = $3; }
+ | { $$ = 0; }
+ ;
+
opt_at:
AT '(' exp ')' { $$ = $3; }
| { $$ = 0; }
section: NAME { ldlex_expression(); }
opt_exp_with_type
- opt_at { ldlex_popstate(); }
+ opt_at { ldlex_popstate (); ldlex_script (); }
'{'
{
- lang_enter_output_section_statement($1,$3,typebits,0,0,0,$4);
+ lang_enter_output_section_statement($1, $3,
+ sectype,
+ 0, 0, 0, $4);
}
statement_list_opt
- '}' {ldlex_expression();} fill_opt memspec_opt
+ '}' { ldlex_popstate (); ldlex_expression (); }
+ memspec_opt memspec_at_opt phdr_opt fill_opt
{
- ldlex_popstate();
- lang_leave_output_section_statement($11, $12);
+ ldlex_popstate ();
+ lang_leave_output_section_statement ($14, $11, $13, $12);
}
-opt_comma
-
+ opt_comma
+ | OVERLAY
+ { ldlex_expression (); }
+ opt_exp_without_type opt_nocrossrefs opt_at
+ { ldlex_popstate (); ldlex_script (); }
+ '{'
+ {
+ lang_enter_overlay ($3);
+ }
+ overlay_section
+ '}'
+ { ldlex_popstate (); ldlex_expression (); }
+ memspec_opt memspec_at_opt phdr_opt fill_opt
+ {
+ ldlex_popstate ();
+ lang_leave_overlay ($5, (int) $4,
+ $15, $12, $14, $13);
+ }
+ opt_comma
+ | /* The GROUP case is just enough to support the gcc
+ svr3.ifile script. It is not intended to be full
+ support. I'm not even sure what GROUP is supposed
+ to mean. */
+ GROUP { ldlex_expression (); }
+ opt_exp_with_type
+ {
+ ldlex_popstate ();
+ lang_add_assignment (exp_assop ('=', ".", $3));
+ }
+ '{' sec_or_group_p1 '}'
;
type:
- NOLOAD { typebits = SEC_NEVER_LOAD; }
- | DSECT { typebits = 0; }
- | COPY { typebits = 0; }
- | INFO { typebits = 0; }
- | OVERLAY { typebits = 0; }
- | { typebits = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS; }
+ NOLOAD { sectype = noload_section; }
+ | DSECT { sectype = dsect_section; }
+ | COPY { sectype = copy_section; }
+ | INFO { sectype = info_section; }
+ | OVERLAY { sectype = overlay_section; }
;
+atype:
+ '(' type ')'
+ | /* EMPTY */ { sectype = normal_section; }
+ | '(' ')' { sectype = normal_section; }
+ ;
opt_exp_with_type:
- exp ':' { $$ = $1; typebits =0;}
- | exp '(' type ')' ':' { $$ = $1; }
- | ':' { $$= (etree_type *)NULL; typebits = 0; }
- | '(' type ')' ':' { $$= (etree_type *)NULL; }
+ exp atype ':' { $$ = $1; }
+ | atype ':' { $$ = (etree_type *)NULL; }
+ | /* The BIND cases are to support the gcc svr3.ifile
+ script. They aren't intended to implement full
+ support for the BIND keyword. I'm not even sure
+ what BIND is supposed to mean. */
+ BIND '(' exp ')' atype ':' { $$ = $3; }
+ | BIND '(' exp ')' BLOCK '(' exp ')' atype ':'
+ { $$ = $3; }
+ ;
+
+opt_exp_without_type:
+ exp ':' { $$ = $1; }
+ | ':' { $$ = (etree_type *) NULL; }
+ ;
+
+opt_nocrossrefs:
+ /* empty */
+ { $$ = 0; }
+ | NOCROSSREFS
+ { $$ = 1; }
;
memspec_opt:
{ $$ = $2; }
| { $$ = "*default*"; }
;
+
+phdr_opt:
+ /* empty */
+ {
+ $$ = NULL;
+ }
+ | phdr_opt ':' NAME
+ {
+ struct lang_output_section_phdr_list *n;
+
+ n = ((struct lang_output_section_phdr_list *)
+ xmalloc (sizeof *n));
+ n->name = $3;
+ n->used = false;
+ n->next = $1;
+ $$ = n;
+ }
+ ;
+
+overlay_section:
+ /* empty */
+ | overlay_section
+ NAME
+ {
+ ldlex_script ();
+ lang_enter_overlay_section ($2);
+ }
+ '{' statement_list_opt '}'
+ { ldlex_popstate (); ldlex_expression (); }
+ phdr_opt fill_opt
+ {
+ ldlex_popstate ();
+ lang_leave_overlay_section ($9, $8);
+ }
+ opt_comma
+ ;
+
+phdrs:
+ PHDRS '{' phdr_list '}'
+ ;
+
+phdr_list:
+ /* empty */
+ | phdr_list phdr
+ ;
+
+phdr:
+ NAME { ldlex_expression (); }
+ phdr_type phdr_qualifiers { ldlex_popstate (); }
+ ';'
+ {
+ lang_new_phdr ($1, $3, $4.filehdr, $4.phdrs, $4.at,
+ $4.flags);
+ }
+ ;
+
+phdr_type:
+ exp
+ {
+ $$ = $1;
+
+ if ($1->type.node_class == etree_name
+ && $1->type.node_code == NAME)
+ {
+ const char *s;
+ unsigned int i;
+ static const char * const phdr_types[] =
+ {
+ "PT_NULL", "PT_LOAD", "PT_DYNAMIC",
+ "PT_INTERP", "PT_NOTE", "PT_SHLIB",
+ "PT_PHDR"
+ };
+
+ s = $1->name.name;
+ for (i = 0;
+ i < sizeof phdr_types / sizeof phdr_types[0];
+ i++)
+ if (strcmp (s, phdr_types[i]) == 0)
+ {
+ $$ = exp_intop (i);
+ break;
+ }
+ }
+ }
+ ;
+
+phdr_qualifiers:
+ /* empty */
+ {
+ memset (&$$, 0, sizeof (struct phdr_info));
+ }
+ | NAME phdr_val phdr_qualifiers
+ {
+ $$ = $3;
+ if (strcmp ($1, "FILEHDR") == 0 && $2 == NULL)
+ $$.filehdr = true;
+ else if (strcmp ($1, "PHDRS") == 0 && $2 == NULL)
+ $$.phdrs = true;
+ else if (strcmp ($1, "FLAGS") == 0 && $2 != NULL)
+ $$.flags = $2;
+ else
+ einfo (_("%X%P:%S: PHDRS syntax error at `%s'\n"), $1);
+ }
+ | AT '(' exp ')' phdr_qualifiers
+ {
+ $$ = $5;
+ $$.at = $3;
+ }
+ ;
+
+phdr_val:
+ /* empty */
+ {
+ $$ = NULL;
+ }
+ | '(' exp ')'
+ {
+ $$ = $2;
+ }
+ ;
+
+/* This syntax is used within an external version script file. */
+
+version_script_file:
+ {
+ ldlex_version_file ();
+ PUSH_ERROR (_("VERSION script"));
+ }
+ vers_nodes
+ {
+ ldlex_popstate ();
+ POP_ERROR ();
+ }
+ ;
+
+/* This is used within a normal linker script file. */
+
+version:
+ {
+ ldlex_version_script ();
+ }
+ VERSIONK '{' vers_nodes '}'
+ {
+ ldlex_popstate ();
+ }
+ ;
+
+vers_nodes:
+ vers_node
+ | vers_nodes vers_node
+ ;
+
+vers_node:
+ '{' vers_tag '}' ';'
+ {
+ lang_register_vers_node (NULL, $2, NULL);
+ }
+ | VERS_TAG '{' vers_tag '}' ';'
+ {
+ lang_register_vers_node ($1, $3, NULL);
+ }
+ | VERS_TAG '{' vers_tag '}' verdep ';'
+ {
+ lang_register_vers_node ($1, $3, $5);
+ }
+ ;
+
+verdep:
+ VERS_TAG
+ {
+ $$ = lang_add_vers_depend (NULL, $1);
+ }
+ | verdep VERS_TAG
+ {
+ $$ = lang_add_vers_depend ($1, $2);
+ }
+ ;
+
+vers_tag:
+ /* empty */
+ {
+ $$ = lang_new_vers_node (NULL, NULL);
+ }
+ | vers_defns ';'
+ {
+ $$ = lang_new_vers_node ($1, NULL);
+ }
+ | GLOBAL ':' vers_defns ';'
+ {
+ $$ = lang_new_vers_node ($3, NULL);
+ }
+ | LOCAL ':' vers_defns ';'
+ {
+ $$ = lang_new_vers_node (NULL, $3);
+ }
+ | GLOBAL ':' vers_defns ';' LOCAL ':' vers_defns ';'
+ {
+ $$ = lang_new_vers_node ($3, $7);
+ }
+ ;
+
+vers_defns:
+ VERS_IDENTIFIER
+ {
+ $$ = lang_new_vers_pattern (NULL, $1, ldgram_vers_current_lang);
+ }
+ | vers_defns ';' VERS_IDENTIFIER
+ {
+ $$ = lang_new_vers_pattern ($1, $3, ldgram_vers_current_lang);
+ }
+ | EXTERN NAME '{'
+ {
+ $<name>$ = ldgram_vers_current_lang;
+ ldgram_vers_current_lang = $2;
+ }
+ vers_defns '}'
+ {
+ $$ = $5;
+ ldgram_vers_current_lang = $<name>4;
+ }
+ ;
+
%%
void
yyerror(arg)
const char *arg;
{
+ if (ldfile_assumed_script)
+ einfo (_("%P:%s: file format not recognized; treating as linker script\n"),
+ ldfile_input_filename);
if (error_index > 0 && error_index < ERROR_NAME_MAX)
- einfo("%P%F: %S %s in %s\n", arg, error_names[error_index-1]);
+ einfo ("%P%F:%S: %s in %s\n", arg, error_names[error_index-1]);
else
- einfo("%P%F: %S %s\n", arg);
+ einfo ("%P%F:%S: %s\n", arg);
}
projects / deliverable / binutils-gdb.git / blobdiff