/* 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.
#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;
+static char *dirlist_ptr;
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
char *name;
int token;
union etree_union *etree;
-struct sec *section;
+ struct sec *section;
struct lang_output_section_statement_struct *output_section_statement;
union lang_statement_union **statement_ptr;
int lineno;
}
-%type <etree> exp opt_exp mustbe_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
/*%token <token> '+' '-' '*' '/' '%'*/
%right UNARY
-%token END
+%token END
%left <token> '('
%token <token> ALIGN_K BLOCK 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 OPTION_e OPTION_c OPTION_noinhibit_exec OPTION_s OPTION_S OPTION_sort_common OPTION_warn_common
+%token OPTION_EB OPTION_EL OPTION_G OPTION_Gval OPTION_help
+%token OPTION_format OPTION_oformat 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_v OPTION_V OPTION_m OPTION_memul OPTION_M OPTION_t STARTUP HLL SYSLIB FLOAT NOFLOAT
+%token OPTION_L OPTION_Map
+%token OPTION_n OPTION_r OPTION_o OPTION_b OPTION_R OPTION_relax OPTION_version
+%token <name> OPTION_l OPTION_Lfile OPTION_T OPTION_Aarch OPTION_Tfile
+%token <name> OPTION_Texp OPTION_y
%token OPTION_Ur
%token ORIGIN FILL OPTION_g
-%token LENGTH CREATE_OBJECT_SYMBOLS INPUT OUTPUT CONSTRUCTORS
+%token LENGTH CREATE_OBJECT_SYMBOLS INPUT OUTPUT CONSTRUCTORS
+%token OPTION_RETAIN_SYMBOLS_FILE ALIGNMOD AT
+%token OPTION_Qy OPTION_Y OPTION_dn OPTION_call_shared OPTION_non_shared
+%token OPTION_Oval OPTION_stats OPTION_no_keep_memory
+%token <name> OPTION_YP
+
%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
%%
-file: command_line { lang_final(); };
+file: command_line
filename: NAME;
command_line_option:
OPTION_Bstatic { }
+ | OPTION_help
+ {
+ help ();
+ exit (0);
+ }
| OPTION_v
{
ldversion(0);
- option_v = true;
}
| OPTION_V
{
ldversion(1);
- option_v = true;
+ trace_file_tries = true;
+ }
+ | OPTION_version
+ {
+ ldversion(0);
+ exit(0);
}
| OPTION_t {
trace_files = true;
write_map = true;
config.map_filename = $2;
}
- | OPTION_M {
- config.map_filename = "-";
-
- }
+ | OPTION_m NAME
+ {
+ /* Ignore. */
+ }
+ | OPTION_memul
+ {
+ /* Ignore. */
+ }
+ | OPTION_M
+ {
+ config.map_filename = "-";
+ }
| OPTION_n {
config.magic_demand_paged = false;
}
config.magic_demand_paged = false;
}
| OPTION_s {
- strip_symbols = STRIP_ALL;
+ link_info.strip = strip_all;
}
| OPTION_S {
- strip_symbols = STRIP_DEBUGGER;
+ link_info.strip = strip_debugger;
}
+ | OPTION_stats {
+ config.stats = true;
+ }
+ | OPTION_no_keep_memory {
+ link_info.keep_memory = false;
+ }
| OPTION_u NAME {
ldlang_add_undef($2);
}
-
| OPTION_r {
- config.relocateable_output = true;
+ link_info.relocateable = true;
config.build_constructors = false;
config.magic_demand_paged = false;
config.text_read_only = false;
}
| OPTION_Ur {
- config.relocateable_output = true;
+ link_info.relocateable = true;
config.build_constructors = true;
config.magic_demand_paged = false;
config.text_read_only = false;
}
| OPTION_o filename
{
- lang_add_output($2);
+ lang_add_output($2, 0);
}
| OPTION_e NAME
{ lang_add_entry($2);
}
| OPTION_X {
- discard_locals = DISCARD_L;
+ link_info.discard = discard_l;
}
| OPTION_x {
- discard_locals = DISCARD_ALL;
+ link_info.discard = discard_all;
}
| OPTION_noinhibit_exec
{
force_make_executable = true;
}
- | OPTION_sort_common {
- config.sort_common = true;
- }
+ | OPTION_sort_common
+ {
+ config.sort_common = true;
+ }
+ | OPTION_warn_common
+ {
+ config.warn_common = true;
+ }
| OPTION_d {
command_line.force_common_definition = true;
}
{
lang_add_target($2);
}
+ | OPTION_oformat NAME
+ {
+ lang_add_output_format($2, 0);
+ }
| OPTION_Texp
- {
+ { ldlex_expression();
hex_mode = 16;
}
INT
- {
+ { ldlex_popstate();
lang_section_start($1,exp_intop($3));
hex_mode = 0;
}
-
+ | OPTION_y
+ {
+ add_ysym($1);
+ }
| OPTION_Aarch
{
ldfile_add_arch($1);
{
lang_add_target($2);
}
- | OPTION_L
+ | OPTION_L NAME
+ {
+ ldfile_add_library_path($2);
+ }
+ | OPTION_Lfile
{
ldfile_add_library_path($1);
}
{
/* Ignore */
}
- | 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()};
+ {ldfile_open_command_file($2); }
+ mri_script_file END { ldlex_command();}
| OPTION_Tfile
{ ldfile_open_command_file($1); } script_file
| OPTION_T filename
{ ldfile_open_command_file($2); } script_file
-END { ldlex_command();}
+ END { ldlex_command();}
| OPTION_l
{
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 '}'
+ | OPTION_defsym { ldlex_defsym(); }
+ NAME '=' exp DEFSYMEND { ldlex_popstate();
+ lang_add_assignment(exp_assop($4,$3,$5));
+ }
+ | OPTION_RETAIN_SYMBOLS_FILE filename
+ { add_keepsyms_file ($2); }
+ | OPTION_EB
+ {
+ /* FIXME: This is currently ignored. It means
+ ``produce a big-endian object file''. It could
+ be used to select an output format. */
+ }
+ | OPTION_EL
+ {
+ /* FIXME: This is currently ignored. It means
+ ``produce a little-endian object file''. It could
+ be used to select an output format. */
+ }
+ | OPTION_G NAME
+ {
+ g_switch_value = atoi ($2);
+ }
+ | OPTION_Gval
+ {
+ g_switch_value = yylval.integer;
+ }
+ | OPTION_Qy
+ | OPTION_dn
+ | OPTION_non_shared
+ | OPTION_call_shared
+ | OPTION_Oval
+ | OPTION_YP
+ {
+ dirlist_ptr = $1;
+ goto set_default_dirlist;
+ }
+ | OPTION_Y NAME
+ {
+ if (strncmp ($2, "P,", 2))
+ einfo ("%P%F: unknown -Y option -- %s\n", $2);
+ else
+ {
+ char *p;
+ dirlist_ptr = $2;
+ set_default_dirlist:
+ while (1)
+ {
+ p = strchr (dirlist_ptr, ':');
+ if (p != NULL)
+ *p = 0;
+ if (*dirlist_ptr)
+ ldfile_add_library_path (dirlist_ptr);
+ if (p == NULL)
+ break;
+ *p = ':';
+ dirlist_ptr = p + 1;
+ }
+ }
+ }
+ | '{' script_file '}' { /* This parses compiled-in scripts. */ }
+ | NAME
+ {
+ if (*$1 == '-')
+ einfo("%P%F: illegal option -- %s\n", $1);
+ else
+ lang_add_input_file($1,lang_input_file_is_file_enum,
+ (char *)NULL);
+ }
;
;
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 = "-";
}
- | SECT NAME ',' exp
+ | 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:
| SEARCH_DIR '(' filename ')'
{ ldfile_add_library_path($3); }
| 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 ')'
| 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); }
;
;
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:
| '(' 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); }
| NAME
;
-
+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();} fill_opt memspec_opt
{
- lang_leave_output_section_statement($13, $14);
+ ldlex_popstate();
+ lang_leave_output_section_statement($11, $12);
}
+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; }
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