/* 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.
This file is part of GNU ld.
%{
/*
- * $Id$
+
*/
#define DONTDECLARE_MALLOC
#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"
-
-#define YYDEBUG 1
-
-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
+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;
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;
-
-
}
-%type <etree> exp opt_exp
-%type <integer> fill_opt opt_block opt_type
+%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
%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 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_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 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
-
-%{
-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
%%
-
-
-file: command_line { lang_final(); };
-
-
-filename:
- NAME;
-
-command_line:
- command_line command_line_option
- |
+file:
+ INPUT_SCRIPT script_file
+ | INPUT_MRI_SCRIPT mri_script_file
+ | INPUT_DEFSYM defsym_expr
;
-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_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;
- }
+filename: NAME;
- | 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;
+defsym_expr:
+ { ldlex_defsym(); }
+ NAME '=' exp
+ {
+ ldlex_popstate();
+ lang_add_assignment(exp_assop($3,$2,$4));
}
-
- | OPTION_Aarch
- {
- ldfile_add_arch($1);
+
+/* SYNTAX WITHIN AN MRI SCRIPT FILE */
+mri_script_file:
+ { ldlex_mri_script();
+ PUSH_ERROR("MRI style script");
}
- | OPTION_b NAME
- {
- lang_add_target($2);
- }
- | OPTION_L
- {
- ldfile_add_library_path($1);
- }
- | OPTION_F
- {
- /* Ignore */
+ mri_script_lines
+ { ldlex_popstate();
+ 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); }
+ | 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); }
+ |
;
+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); }
+ ;
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
|
;
| 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, 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,
+ | input_list NAME
+ { lang_add_input_file($2,lang_input_file_is_search_file_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, 0); }
| assignment end
;
file_NAME_list:
NAME
{ lang_add_wild($1, current_file); }
- | file_NAME_list opt_comma NAME
+ | file_NAME_list opt_comma NAME
{ lang_add_wild($3, current_file); }
;
{
lang_add_wild((char *)NULL, $1);
}
- | '['
+ | '['
{
current_file = (char *)NULL;
}
- file_NAME_list
- ']'
+ file_NAME_list
+ ']'
| NAME
{
- current_file =$1;
- }
+ current_file =$1;
+ }
'(' file_NAME_list ')'
- | '*'
- {
+ | '*'
+ {
current_file = (char *)NULL;
- }
+ }
'(' file_NAME_list ')'
;
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));
}
- |
+ ;
+
+statement_list:
+ statement_list statement
+ | statement
+ ;
+
+statement_list_opt:
+ /* empty */
+ | statement_list
;
length:
- LONG
+ QUAD
{ $$ = $1; }
- | SHORT
+ | LONG
{ $$ = $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_spec:
+ ORIGIN '=' mustbe_exp
{ region->current =
region->origin =
- exp_get_vma($3, 0L,"origin", lang_first_phase_enum); }
- ;
-length_spec:
- LENGTH '=' exp
- { region->length = exp_get_vma($3,
+ exp_get_vma($3, 0L,"origin", lang_first_phase_enum);
+}
+ ; length_spec:
+ LENGTH '=' mustbe_exp
+ { region->length = exp_get_vma($3,
~((bfd_vma)0),
"length",
lang_first_phase_enum);
;
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); }
;
-
+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 ')'
{ $$ = exp_nameop(ADDR,$3); }
+ | ABSOLUTE '(' exp ')'
+ { $$ = 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; }
+ | { $$ = 0; }
+ ;
-
-section: NAME opt_exp opt_type opt_block ':' opt_things'{'
- {
- lang_enter_output_section_statement($1,$2,$3,$4);
- }
- statement '}' fill_opt memspec_opt
+section: NAME { ldlex_expression(); }
+ opt_exp_with_type
+ opt_at { ldlex_popstate(); }
+ '{'
+ {
+ lang_enter_output_section_statement($1,$3,typebits,0,0,0,$4);
+ }
+ statement_list_opt
+ '}' {ldlex_expression();} memspec_opt fill_opt
{
- lang_leave_output_section_statement($11, $12);
+ ldlex_popstate();
+ lang_leave_output_section_statement($12, $11);
}
+opt_comma
;
-opt_type:
- '(' NOLOAD ')' { $$ = 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; }
| { $$ = "*default*"; }
;
-
+%%
+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