-/* A YACC grammer to parse a superset of the AT&T linker scripting languaue.
- Copyright (C) 1991 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 Free Software Foundation, Inc.
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 "bfd.h"
#include "sysdep.h"
+#include "bfdlink.h"
#include "ld.h"
#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
-boolean option_v;
-extern unsigned int lineno;
-extern boolean trace_files;
-extern boolean write_map;
-extern boolean option_longmap;
-boolean hex_mode;
-
-strip_symbols_type strip_symbols=STRIP_NONE;
-discard_locals_type discard_locals=DISCARD_NONE;
-
+static enum section_type sectype;
lang_memory_region_type *region;
-
-lang_memory_region_type *lang_memory_region_lookup();
-lang_output_section_statement_type *lang_output_section_statement_lookup();
-
-#ifdef __STDC__
-
-void lang_add_data(int type, union etree_union *exp);
-void lang_enter_output_section_statement(char *output_section_statement_name, etree_type *address_exp, int flags, bfd_vma block_value);
-
-#else
-
-void lang_add_data();
-void lang_enter_output_section_statement();
-
-#endif /* __STDC__ */
-
-extern args_type command_line;
-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;
-/* LOCALS */
-
-
-
-
+boolean ldgram_had_keep = false;
+char *ldgram_vers_current_lang = NULL;
+
+#define ERROR_NAME_MAX 20
+static char *error_names[ERROR_NAME_MAX];
+static int error_index;
+#define PUSH_ERROR(x) if (error_index < ERROR_NAME_MAX) error_names[error_index] = x; error_index++;
+#define POP_ERROR() error_index--;
%}
%union {
bfd_vma integer;
- int voidval;
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;
- asection *section;
- struct lang_output_section_statement_struct *output_section_statement;
- union lang_statement_union **statement_ptr;
- int lineno;
- struct {
- FILE *file;
- char *name;
- unsigned int lineno;
- } state;
-
-
+ 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
-%type <integer> fill_opt opt_block opt_type
-%type <name> memspec_opt
+%type <etree> exp opt_exp_with_type mustbe_exp opt_at phdr_type phdr_val
+%type <etree> opt_exp_without_type
+%type <integer> fill_opt
+%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 <integer> INT
-%token <name> NAME
-%type <integer> length
+%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> '?' ':'
%left <token> '+' '-'
%left <token> '*' '/' '%'
-/*%token <token> '+' '-' '*' '/' '%'*/
%right UNARY
+%token END
%left <token> '('
-%token <token> ALIGN_K BLOCK LONG SHORT BYTE
-%token SECTIONS
+%token <token> ALIGN_K BLOCK BIND QUAD SQUAD LONG SHORT BYTE
+%token SECTIONS PHDRS SORT
%token '{' '}'
%token SIZEOF_HEADERS OUTPUT_FORMAT FORCE_COMMON_ALLOCATION OUTPUT_ARCH
+%token INHIBIT_COMMON_ALLOCATION
%token SIZEOF_HEADERS
-%token MEMORY
+%token INCLUDE
+%token MEMORY DEFSYMEND
%token NOLOAD DSECT COPY INFO OVERLAY
-%token NAME DEFINED TARGET_K SEARCH_DIR MAP ENTRY
-%token OPTION_e OPTION_c OPTION_noinhibit_exec OPTION_s OPTION_S OPTION_sort_common
-%token OPTION_format OPTION_F OPTION_u OPTION_Bstatic OPTION_N
-%token <integer> SIZEOF NEXT ADDR
-%token OPTION_d OPTION_dc OPTION_dp OPTION_x OPTION_X OPTION_defsym
-%token OPTION_v OPTION_V OPTION_M OPTION_t STARTUP HLL SYSLIB FLOAT NOFLOAT
-%token OPTION_Map
-%token OPTION_n OPTION_r OPTION_o OPTION_b OPTION_R OPTION_relax
-%token <name> OPTION_l OPTION_L OPTION_T OPTION_Aarch OPTION_Tfile OPTION_Texp
-%token OPTION_Ur
-%token ORIGIN FILL OPTION_g
-%token LENGTH CREATE_OBJECT_SYMBOLS INPUT OUTPUT CONSTRUCTORS
-%type <token> assign_op
-
+%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 GROUP OUTPUT CONSTRUCTORS
+%token ALIGNMOD AT PROVIDE
+%type <token> assign_op atype attributes_opt
%type <name> filename
-
-%{
-ld_config_type config;
-%}
+%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 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
+ ;
-file: command_line { lang_final(); };
-
-
-filename:
- NAME;
+filename: NAME;
-command_line:
- command_line command_line_option
- |
- ;
-command_line_option:
- '{'
- { ldgram_in_script = true; }
- ifile_list
- { ldgram_in_script = false; }
- '}'
- | OPTION_Bstatic { }
- | OPTION_v
- {
- ldversion();
- option_v = true;
- }
- | OPTION_V
- {
- ldversion();
- option_v = true;
- }
- | OPTION_t {
- trace_files = true;
- }
- | OPTION_Map NAME
+defsym_expr:
+ { ldlex_defsym(); }
+ NAME '=' exp
{
- write_map = true;
- config.map_filename = $2;
+ ldlex_popstate();
+ lang_add_assignment(exp_assop($3,$2,$4));
}
- | OPTION_M {
- if (write_map) {
- option_longmap = true;
- }
- write_map = true;
-
- }
- | OPTION_n {
- config.magic_demand_paged = false;
- }
- | OPTION_N {
- config.text_read_only = false;
- config.magic_demand_paged = false;
- }
- | OPTION_s {
- strip_symbols = STRIP_ALL;
- }
- | OPTION_S {
- strip_symbols = STRIP_DEBUGGER;
- }
- | OPTION_u NAME {
- ldlang_add_undef($2);
- }
-
- | OPTION_r {
- config.relocateable_output = true;
- config.build_constructors = false;
- config.magic_demand_paged = false;
- config.text_read_only = false;
- }
- | OPTION_Ur {
- config.relocateable_output = true;
- config.build_constructors = true;
- config.magic_demand_paged = false;
- config.text_read_only = false;
- }
- | OPTION_o filename
- {
- lang_add_output($2);
- }
- | OPTION_e NAME
- { lang_add_entry($2);
- }
- | OPTION_X {
- discard_locals = DISCARD_L;
- }
- | OPTION_x {
- discard_locals = DISCARD_ALL;
+/* SYNTAX WITHIN AN MRI SCRIPT FILE */
+mri_script_file:
+ {
+ ldlex_mri_script ();
+ PUSH_ERROR (_("MRI style script"));
}
-
- | OPTION_noinhibit_exec
- {
- force_make_executable = true;
- }
- | OPTION_sort_common {
- config.sort_common = true;
- }
- | OPTION_d {
- command_line.force_common_definition = true;
- }
-
- | OPTION_relax {
- command_line.relax = true;
- }
- | OPTION_dc
- {
- command_line.force_common_definition = true;
- }
- | OPTION_g
- {
- /* Ignored */
- }
- | OPTION_dp
- {
- command_line.force_common_definition = true;
- }
- | OPTION_format NAME
- {
- lang_add_target($2);
- }
- | OPTION_Texp
- {
- hex_mode =true;
- }
- INT
- {
- lang_section_start($1,exp_intop($3));
- hex_mode = false;
- }
-
- | OPTION_Aarch
- {
- ldfile_add_arch($1);
- }
- | OPTION_b NAME
- {
- lang_add_target($2);
- }
- | OPTION_L
- {
- ldfile_add_library_path($1);
- }
- | OPTION_F
+ mri_script_lines
{
- /* Ignore */
+ ldlex_popstate ();
+ mri_draw_tree ();
+ POP_ERROR ();
}
- | NAME
- { lang_add_input_file($1,lang_input_file_is_file_enum,
- (char *)NULL); }
- | OPTION_c filename
- { ldfile_open_command_file($2); } script_file
- | OPTION_Tfile
- { ldfile_open_command_file($1); } script_file
+ ;
- | OPTION_T filename
- { ldfile_open_command_file($2); } script_file
+mri_script_lines:
+ mri_script_lines mri_script_command NEWLINE
+ |
+ ;
- | OPTION_l
- {
- lang_add_input_file($1,
- lang_input_file_is_l_enum,
- (char *)NULL);
+mri_script_command:
+ CHIP exp
+ | CHIP exp ',' exp
+ | NAME {
+ einfo(_("%P%F: unrecognised keyword in MRI style script '%s'\n"),$1);
}
- | OPTION_R filename
- {
- lang_add_input_file($2,
- lang_input_file_is_symbols_only_enum,
- (char *)NULL);
- }
- | OPTION_defsym
- {
+ | LIST {
+ config.map_filename = "-";
}
- NAME '='
- exp
- {
- lang_add_assignment(exp_assop($4,$3,$5));
- }
- | '-' NAME
- { info("%P%F Unrecognised option -%s\n", $2); }
-
+ | ORDER ordernamelist
+ | ENDWORD
+ | PUBLIC NAME '=' exp
+ { mri_public($2, $4); }
+ | PUBLIC NAME ',' exp
+ { mri_public($2, $4); }
+ | PUBLIC NAME exp
+ { mri_public($2, $3); }
+ | FORMAT NAME
+ { mri_format($2); }
+ | SECT NAME ',' exp
+ { mri_output_section($2, $4);}
+ | SECT NAME exp
+ { mri_output_section($2, $3);}
+ | SECT NAME '=' exp
+ { 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
+ { mri_name($2); }
+ | ALIAS NAME ',' NAME
+ { mri_alias($2,$4,0);}
+ | ALIAS NAME ',' INT
+ { mri_alias($2,0,(int) $4);}
+ | BASE exp
+ { mri_base($2); }
+ | TRUNCATE INT
+ { mri_truncate((unsigned int) $2); }
+ | CASE casesymlist
+ | EXTERN extern_name_list
+ | INCLUDE filename
+ { ldfile_open_command_file ($2); } mri_script_lines END
+ | START NAME
+ { lang_add_entry ($2, false); }
+ |
;
+ordernamelist:
+ ordernamelist ',' NAME { mri_order($3); }
+ | ordernamelist NAME { mri_order($2); }
+ |
+ ;
-
-
+mri_load_name_list:
+ NAME
+ { mri_load($1); }
+ | mri_load_name_list ',' NAME { mri_load($3); }
+ ;
+mri_abs_name_list:
+ NAME
+ { mri_only_load($1); }
+ | mri_abs_name_list ',' NAME
+ { 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:
- { ldgram_in_script = true; }
- ifile_list '}'
- { ldgram_in_script = false; }
-
+ {
+ ldlex_both();
+ }
+ ifile_list
+ {
+ ldlex_popstate();
+ }
;
ifile_list:
- ifile_list ifile_p1
+ ifile_list ifile_p1
|
;
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); }
- | OUTPUT_FORMAT '(' NAME ')'
- { lang_add_output_format($3); }
- | OUTPUT_ARCH '(' NAME ')'
+ { lang_add_output($3, 1); }
+ | OUTPUT_FORMAT '(' NAME ')'
+ { 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
+ | NOCROSSREFS '(' nocrossref_list ')'
+ {
+ lang_add_nocrossref ($3);
+ }
+ | EXTERN '(' extern_name_list ')'
;
input_list:
NAME
- { lang_add_input_file($1,lang_input_file_is_file_enum,
+ { lang_add_input_file($1,lang_input_file_is_search_file_enum,
(char *)NULL); }
| input_list ',' NAME
- { lang_add_input_file($3,lang_input_file_is_file_enum,
+ { lang_add_input_file($3,lang_input_file_is_search_file_enum,
+ (char *)NULL); }
+ | input_list NAME
+ { lang_add_input_file($2,lang_input_file_is_search_file_enum,
(char *)NULL); }
- | input_list NAME
- { lang_add_input_file($2, lang_input_file_is_file_enum,
+ | 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:
- SECTIONS '{'sec_or_group_p1 '}'
+ SECTIONS '{' sec_or_group_p1 '}'
;
sec_or_group_p1:
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 ']'
+ {
+ lang_add_wild (NULL, $2, ldgram_had_keep);
+ }
+ | wildcard_spec '(' file_NAME_list ')'
{
- current_file =$1;
- }
- '(' file_NAME_list ')'
- | '*'
- {
- current_file = (char *)NULL;
- }
- '(' file_NAME_list ')'
+ lang_add_wild (&$1, $3, ldgram_had_keep);
+ }
+ ;
+
+input_section_spec:
+ input_section_spec_no_keep
+ | KEEP '('
+ { ldgram_had_keep = true; }
+ input_section_spec_no_keep ')'
+ { ldgram_had_keep = false; }
;
statement:
- statement assignment end
- | statement CREATE_OBJECT_SYMBOLS
+ assignment end
+ | CREATE_OBJECT_SYMBOLS
{
- lang_add_attribute(lang_object_symbols_statement_enum); }
- | statement ';'
- | statement CONSTRUCTORS
+ lang_add_attribute(lang_object_symbols_statement_enum);
+ }
+ | ';'
+ | CONSTRUCTORS
{
- lang_add_attribute(lang_constructors_statement_enum); }
-
- | statement input_section_spec
- | statement length '(' exp ')'
+
+ lang_add_attribute(lang_constructors_statement_enum);
+ }
+ | SORT '(' CONSTRUCTORS ')'
+ {
+ constructors_sorted = true;
+ lang_add_attribute (lang_constructors_statement_enum);
+ }
+ | input_section_spec
+ | length '(' mustbe_exp ')'
{
- lang_add_data($2,$4);
+ lang_add_data((int) $1,$3);
}
- | statement FILL '(' exp ')'
+ | FILL '(' mustbe_exp ')'
{
lang_add_fill
- (exp_get_value_int($4,
+ (exp_get_value_int($3,
0,
"fill value",
lang_first_phase_enum));
}
- |
+ ;
+
+statement_list:
+ statement_list statement
+ | statement
+ ;
+
+statement_list_opt:
+ /* empty */
+ | statement_list
;
length:
- LONG
+ QUAD
+ { $$ = $1; }
+ | SQUAD
{ $$ = $1; }
- | SHORT
+ | LONG
{ $$ = $1; }
- | BYTE
+ | SHORT
+ { $$ = $1; }
+ | BYTE
{ $$ = $1; }
;
fill_opt:
- '=' exp
+ '=' mustbe_exp
{
$$ = exp_get_value_int($2,
0,
"fill value",
- lang_first_phase_enum);
+ lang_first_phase_enum);
}
- | { $$ = 0; }
+ | { $$ = 0; }
;
assign_op:
PLUSEQ
{ $$ = '+'; }
- | MINUSEQ
+ | MINUSEQ
{ $$ = '-'; }
| MULTEQ
{ $$ = '*'; }
assignment:
- NAME '=' exp
+ NAME '=' mustbe_exp
{
- lang_add_assignment(exp_assop($2,$1,$3));
+ lang_add_assignment (exp_assop ($2, $1, $3));
}
- | NAME assign_op exp
+ | 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));
}
-
;
;
memory_spec_list:
- memory_spec_list memory_spec
+ memory_spec_list memory_spec
| memory_spec_list ',' memory_spec
|
;
-memory_spec:
- NAME
+memory_spec: NAME
{ region = lang_memory_region_lookup($1); }
- attributes_opt ':' origin_spec opt_comma length_spec
+ attributes_opt ':'
+ origin_spec opt_comma length_spec
- {
-
-
- }
;
+
origin_spec:
- ORIGIN '=' exp
+ ORIGIN '=' mustbe_exp
{ region->current =
region->origin =
- exp_get_vma($3, 0L,"origin", lang_first_phase_enum); }
+ exp_get_vma($3, 0L,"origin", lang_first_phase_enum);
+}
;
+
length_spec:
- LENGTH '=' exp
- { region->length = exp_get_vma($3,
+ 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:
;
high_level_library:
- HLL '(' high_level_library_NAME_list ')'
- | HLL '(' ')'
+ HLL '(' high_level_library_NAME_list ')'
+ | HLL '(' ')'
{ ldemul_hll((char *)NULL); }
;
high_level_library_NAME_list:
- high_level_library_NAME_list opt_comma filename
+ high_level_library_NAME_list opt_comma filename
{ ldemul_hll($3); }
| filename
{ ldemul_hll($1); }
low_level_library:
SYSLIB '(' low_level_library_NAME_list ')'
- ;
-low_level_library_NAME_list:
+ ; low_level_library_NAME_list:
low_level_library_NAME_list opt_comma filename
- { ldemul_syslib($3); }
+ { ldemul_syslib($3); }
|
;
FLOAT
{ lang_float(true); }
| NOFLOAT
- { lang_float(false); }
+ { 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
+ { ldlex_popstate(); $$=$2;}
+ ;
exp :
- '-' exp %prec UNARY
+ '-' exp %prec UNARY
{ $$ = exp_unop('-', $2); }
| '(' exp ')'
{ $$ = $2; }
| NEXT '(' exp ')' %prec UNARY
- { $$ = exp_unop($1,$3); }
- | '!' exp %prec UNARY
+ { $$ = exp_unop((int) $1,$3); }
+ | '!' exp %prec UNARY
{ $$ = exp_unop('!', $2); }
- | '+' exp %prec UNARY
+ | '+' exp %prec UNARY
{ $$ = $2; }
- | '~' exp %prec UNARY
+ | '~' exp %prec UNARY
{ $$ = exp_unop('~', $2);}
| exp '*' exp
| exp '+' exp
{ $$ = exp_binop('+', $1, $3); }
| exp '-' exp
- { $$ = exp_binop('-' , $1, $3); }
+ { $$ = exp_binop('-' , $1, $3); }
| exp LSHIFT exp
{ $$ = exp_binop(LSHIFT , $1, $3); }
| exp RSHIFT exp
{ $$ = exp_binop(NE , $1, $3); }
| exp LE exp
{ $$ = exp_binop(LE , $1, $3); }
- | exp GE exp
+ | exp GE exp
{ $$ = exp_binop(GE , $1, $3); }
| exp '<' exp
{ $$ = exp_binop('<' , $1, $3); }
{ $$ = exp_nameop(DEFINED, $3); }
| INT
{ $$ = exp_intop($1); }
- | SIZEOF_HEADERS
+ | SIZEOF_HEADERS
{ $$ = exp_nameop(SIZEOF_HEADERS,0); }
- | SIZEOF '(' NAME ')'
+ | SIZEOF '(' NAME ')'
{ $$ = 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); }
+ | 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; }
+ | { $$ = "*default*"; }
+ ;
+opt_at:
+ AT '(' exp ')' { $$ = $3; }
+ | { $$ = 0; }
+ ;
-section: NAME opt_exp opt_type opt_block ':' opt_things'{'
+section: NAME { ldlex_expression(); }
+ opt_exp_with_type
+ opt_at { ldlex_popstate (); ldlex_script (); }
+ '{'
+ {
+ lang_enter_output_section_statement($1, $3,
+ sectype,
+ 0, 0, 0, $4);
+ }
+ statement_list_opt
+ '}' { ldlex_popstate (); ldlex_expression (); }
+ memspec_opt memspec_at_opt phdr_opt fill_opt
{
- lang_enter_output_section_statement($1,$2,$3,$4);
+ ldlex_popstate ();
+ lang_leave_output_section_statement ($14, $11, $13, $12);
}
- statement '}' fill_opt memspec_opt
+ opt_comma
+ | OVERLAY
+ { ldlex_expression (); }
+ opt_exp_without_type opt_nocrossrefs opt_at
+ { ldlex_popstate (); ldlex_script (); }
+ '{'
+ {
+ lang_enter_overlay ($3, $5, (int) $4);
+ }
+ overlay_section
+ '}'
+ { ldlex_popstate (); ldlex_expression (); }
+ memspec_opt memspec_at_opt phdr_opt fill_opt
+ {
+ ldlex_popstate ();
+ lang_leave_overlay ($15, $12, $14, $13);
+ }
+ opt_comma
+ | /* The GROUP case is just enough to support the gcc
+ svr3.ifile script. It is not intended to be full
+ support. I'm not even sure what GROUP is supposed
+ to mean. */
+ GROUP { ldlex_expression (); }
+ opt_exp_with_type
{
- lang_leave_output_section_statement($11, $12);
+ ldlex_popstate ();
+ lang_add_assignment (exp_assop ('=', ".", $3));
}
+ '{' sec_or_group_p1 '}'
+ ;
+type:
+ NOLOAD { sectype = noload_section; }
+ | DSECT { sectype = dsect_section; }
+ | COPY { sectype = copy_section; }
+ | INFO { sectype = info_section; }
+ | OVERLAY { sectype = overlay_section; }
;
-opt_type:
- '(' NOLOAD ')' { $$ = SEC_NO_FLAGS; }
- | '(' DSECT ')' { $$ = 0; }
- | '(' COPY ')' { $$ = 0; }
- | '(' INFO ')' { $$ = 0; }
- | '(' OVERLAY ')' { $$ = 0; }
- | { $$ = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS; }
+atype:
+ '(' type ')'
+ | /* EMPTY */ { sectype = normal_section; }
+ | '(' ')' { sectype = normal_section; }
;
-opt_things:
- {
+opt_exp_with_type:
+ exp atype ':' { $$ = $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
+ { $$ = 1; }
+ ;
+memspec_opt:
+ '>' NAME
+ { $$ = $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;
+ $$ = n;
+ }
+ ;
+overlay_section:
+ /* empty */
+ | overlay_section
+ NAME
+ {
+ ldlex_script ();
+ lang_enter_overlay_section ($2);
+ }
+ '{' statement_list_opt '}'
+ { ldlex_popstate (); ldlex_expression (); }
+ phdr_opt fill_opt
+ {
+ ldlex_popstate ();
+ lang_leave_overlay_section ($9, $8);
+ }
+ opt_comma
+ ;
-opt_exp:
+phdrs:
+ PHDRS '{' phdr_list '}'
+ ;
+
+phdr_list:
+ /* empty */
+ | phdr_list phdr
+ ;
+
+phdr:
+ NAME { ldlex_expression (); }
+ phdr_type phdr_qualifiers { ldlex_popstate (); }
+ ';'
+ {
+ lang_new_phdr ($1, $3, $4.filehdr, $4.phdrs, $4.at,
+ $4.flags);
+ }
+ ;
+
+phdr_type:
exp
- { $$ = $1; }
- | { $$= (etree_type *)NULL; }
+ {
+ $$ = $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)
+ {
+ $$ = exp_intop (i);
+ break;
+ }
+ }
+ }
;
-opt_block:
- BLOCK '(' exp ')'
- { $$ = exp_get_value_int($3,
- 1L,
- "block",
- lang_first_phase_enum);
+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;
+ $$.at = $3;
}
- | { $$ = 1; }
;
-
-memspec_opt:
- '>' NAME
- { $$ = $2; }
- | { $$ = "*default*"; }
+
+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 '{' 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_regex (NULL, $1, ldgram_vers_current_lang);
+ }
+ | vers_defns ';' VERS_IDENTIFIER
+ {
+ $$ = lang_new_vers_regex ($1, $3, ldgram_vers_current_lang);
+ }
+ | EXTERN NAME '{'
+ {
+ $<name>$ = ldgram_vers_current_lang;
+ ldgram_vers_current_lang = $2;
+ }
+ vers_defns '}'
+ {
+ $$ = $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]);
+ else
+ einfo ("%P%F:%S: %s\n", arg);
+}
projects / binutils.git / blobdiff