/* A YACC grammer to parse a superset of the AT&T linker scripting languaue.
- Copyright (C) 1991 Free Software Foundation, Inc.
+ Copyright (C) 1991, 1993 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 "bfd.h"
#include "sysdep.h"
+#include "bfdlink.h"
#include "ld.h"
#include "ldexp.h"
#include "ldver.h"
#include "ldemul.h"
#include "ldfile.h"
#include "ldmisc.h"
+#include "ldmain.h"
#include "mri.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 int typebits;
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;
boolean ldgram_in_script = false;
boolean ldgram_had_equals = false;
-/* LOCALS */
#define ERROR_NAME_MAX 20
%}
%union {
bfd_vma integer;
- int voidval;
char *name;
int token;
union etree_union *etree;
-struct sec *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;
-
-
}
-%type <etree> exp opt_exp mustbe_exp
-%type <integer> fill_opt opt_block opt_type
-%type <name> memspec_opt
+%type <etree> exp opt_exp_with_type mustbe_exp opt_at
+%type <integer> fill_opt
+%type <name> memspec_opt casesymlist
%token <integer> INT
-%token <name> NAME
+%token <name> NAME LNAME
%type <integer> length
%right <token> PLUSEQ MINUSEQ MULTEQ DIVEQ '=' LSHIFTEQ RSHIFTEQ ANDEQ OREQ
%left <token> '+' '-'
%left <token> '*' '/' '%'
-/*%token <token> '+' '-' '*' '/' '%'*/
%right UNARY
-%token END
+%token END
%left <token> '('
-%token <token> ALIGN_K BLOCK LONG SHORT BYTE
-%token SECTIONS
+%token <token> ALIGN_K BLOCK QUAD LONG SHORT BYTE
+%token SECTIONS
%token '{' '}'
%token SIZEOF_HEADERS OUTPUT_FORMAT FORCE_COMMON_ALLOCATION OUTPUT_ARCH
%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
+%token NAME LNAME DEFINED TARGET_K SEARCH_DIR MAP ENTRY
+%token <integer> SIZEOF NEXT ADDR
+%token STARTUP HLL SYSLIB FLOAT NOFLOAT
+%token ORIGIN FILL
+%token LENGTH CREATE_OBJECT_SYMBOLS INPUT GROUP OUTPUT CONSTRUCTORS
+%token ALIGNMOD AT PROVIDE
%type <token> assign_op
-
%type <name> filename
-
-
-%token CHIP LIST SECT ABSOLUTE LOAD
-
-%{
-ld_config_type config;
-%}
+%token CHIP LIST SECT ABSOLUTE LOAD NEWLINE ENDWORD ORDER NAMEWORD
+%token FORMAT PUBLIC DEFSYMEND BASE ALIAS TRUNCATE REL
+%token INPUT_SCRIPT INPUT_MRI_SCRIPT INPUT_DEFSYM CASE EXTERN START
%%
-file: command_line { lang_final(); };
+file:
+ INPUT_SCRIPT script_file
+ | INPUT_MRI_SCRIPT mri_script_file
+ | INPUT_DEFSYM defsym_expr
+ ;
filename: NAME;
-command_line:
- command_line command_line_option
- |
- ;
-
-command_line_option:
- OPTION_Bstatic { }
- | OPTION_v
- {
- ldversion(0);
- option_v = true;
- }
- | OPTION_V
- {
- ldversion(1);
- option_v = true;
- }
- | OPTION_t {
- trace_files = true;
- }
- | OPTION_Map NAME
- {
- write_map = true;
- config.map_filename = $2;
- }
- | OPTION_M {
- config.map_filename = "-";
-
- }
- | 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;
- }
-
- | 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 = 16;
- }
- INT
- {
- lang_section_start($1,exp_intop($3));
- hex_mode = 0;
- }
-
- | OPTION_Aarch
- {
- ldfile_add_arch($1);
- }
- | OPTION_b NAME
- {
- lang_add_target($2);
- }
- | OPTION_L
- {
- ldfile_add_library_path($1);
- }
- | OPTION_F
+defsym_expr:
+ { ldlex_defsym(); }
+ NAME '=' exp
{
- /* Ignore */
+ ldlex_popstate();
+ lang_add_assignment(exp_assop($3,$2,$4));
}
- | NAME
- { lang_add_input_file($1,lang_input_file_is_file_enum,
- (char *)NULL); }
- | OPTION_c filename
- { ldfile_open_command_file($2); } mri_script_file END { ldlex_command()};
-
- | OPTION_Tfile
- { ldfile_open_command_file($1); } script_file
- END { ldlex_command();}
-
- | OPTION_T filename
- { ldfile_open_command_file($2); } script_file
-END { ldlex_command();}
-
- | OPTION_l
- {
- lang_add_input_file($1,
- lang_input_file_is_l_enum,
- (char *)NULL);
- }
- | OPTION_R filename
- {
- lang_add_input_file($2,
- lang_input_file_is_symbols_only_enum,
- (char *)NULL);
- }
- | OPTION_defsym { ldlex_expression();
-
- }
- NAME '=' mustbe_exp { ldlex_popstate();
- lang_add_assignment(exp_assop($4,$3,$5));
- }
- | '-' NAME
- { info("%P%F Unrecognised option -%s\n", $2); }
-
- | '{' script_file '}'
- ;
-
/* SYNTAX WITHIN AN MRI SCRIPT FILE */
mri_script_file:
;
mri_script_lines:
- mri_script_lines mri_script_line
- |
+ mri_script_lines mri_script_command NEWLINE
+ |
;
-mri_script_line:
+mri_script_command:
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
+ { 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); }
+ | 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, 0); }
+ |
+ ;
+
+ordernamelist:
+ ordernamelist ',' NAME { mri_order($3); }
+ | ordernamelist NAME { mri_order($2); }
+ |
;
mri_load_name_list:
{ 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 ($3); }
+ ;
+
script_file:
{
ldlex_both();
| 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 ; }
| 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
;
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_file_enum,
+ { 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); }
;
statement_anywhere:
ENTRY '(' NAME ')'
- { lang_add_entry($3); }
+ { lang_add_entry ($3, 0); }
| assignment end
;
;
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);
+ }
+ | input_section_spec
+ | length '(' exp ')'
{
- lang_add_data($2,$4);
+ lang_add_data((int) $1,$3);
}
- | statement FILL '(' exp ')'
+ | FILL '(' exp ')'
{
lang_add_fill
- (exp_get_value_int($4,
+ (exp_get_value_int($3,
0,
"fill value",
-
-lang_first_phase_enum));
+ lang_first_phase_enum));
}
- |
+ ;
+
+statement_list:
+ statement_list statement
+ | statement
+ ;
+
+statement_list_opt:
+ /* empty */
+ | statement_list
;
length:
- LONG
+ QUAD
+ { $$ = $1; }
+ | LONG
{ $$ = $1; }
| SHORT
{ $$ = $1; }
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));
}
-
;
| '(' exp ')'
{ $$ = $2; }
| NEXT '(' exp ')' %prec UNARY
- { $$ = exp_unop($1,$3); }
+ { $$ = exp_unop((int) $1,$3); }
| '!' exp %prec UNARY
{ $$ = exp_unop('!', $2); }
| '+' exp %prec UNARY
{ $$ = exp_nameop(SIZEOF,$3); }
| ADDR '(' NAME ')'
{ $$ = exp_nameop(ADDR,$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); }
;
-
+opt_at:
+ AT '(' exp ')' { $$ = $3; }
+ | { $$ = 0; }
+ ;
section: NAME { ldlex_expression(); }
- opt_exp { ldlex_popstate(); }
- opt_type opt_block ':' opt_things'{'
- {
- lang_enter_output_section_statement($1,$3,$5,$6);
- }
- statement '}' fill_opt memspec_opt
+ opt_exp_with_type
+ opt_at { ldlex_popstate(); }
+ '{'
+ {
+ lang_enter_output_section_statement($1,$3,typebits,0,0,0,$4);
+ }
+ statement_list_opt
+ '}' {ldlex_expression();} memspec_opt fill_opt
{
- lang_leave_output_section_statement($13, $14);
+ ldlex_popstate();
+ lang_leave_output_section_statement($12, $11);
}
+opt_comma
;
-opt_type:
- '(' NOLOAD ')' { $$ = SEC_NO_FLAGS; }
- | '(' DSECT ')' { $$ = 0; }
- | '(' COPY ')' { $$ = 0; }
- | '(' INFO ')' { $$ = 0; }
- | '(' OVERLAY ')' { $$ = 0; }
- | { $$ = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS; }
+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; }
;
-opt_things:
- {
- };
-
-opt_exp:
- exp
- { $$ = $1; }
- | { $$= (etree_type *)NULL; }
+opt_exp_with_type:
+ exp ':' { $$ = $1; typebits =0;}
+ | exp '(' type ')' ':' { $$ = $1; }
+ | ':' { $$= (etree_type *)NULL; typebits = 0; }
+ | '(' type ')' ':' { $$= (etree_type *)NULL; }
;
-opt_block:
- BLOCK '(' exp ')'
- { $$ = exp_get_value_int($3,
- 1L,
- "block",
- lang_first_phase_enum);
- }
- | { $$ = 1; }
- ;
-
memspec_opt:
'>' NAME
{ $$ = $2; }
%%
void
yyerror(arg)
-char *arg;
+ const char *arg;
{
- if (error_index> 0 && error_index < ERROR_NAME_MAX)
- einfo("%P%F: %S syntax error in %s\n",error_names[error_index-1]);
+ 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 syntax error\n");
+ einfo ("%P%F:%S: %s\n", arg);
}
projects / deliverable / binutils-gdb.git / blobdiff