/* 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.
+ 2001, 2002, 2003 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 "ld.h"
#include "ldexp.h"
#include "ldver.h"
#include "ldlang.h"
lang_memory_region_type *region;
-boolean ldgram_want_filename = true;
-FILE * saved_script_handle = NULL;
-boolean force_make_executable = false;
+bfd_boolean ldgram_want_filename = TRUE;
+FILE *saved_script_handle = NULL;
+bfd_boolean force_make_executable = FALSE;
-boolean ldgram_in_script = false;
-boolean ldgram_had_equals = false;
-boolean ldgram_had_keep = false;
+bfd_boolean ldgram_in_script = FALSE;
+bfd_boolean ldgram_had_equals = FALSE;
+bfd_boolean ldgram_had_keep = FALSE;
char *ldgram_vers_current_lang = NULL;
#define ERROR_NAME_MAX 20
union etree_union *etree;
struct phdr_info
{
- boolean filehdr;
- boolean phdrs;
+ bfd_boolean filehdr;
+ bfd_boolean phdrs;
union etree_union *at;
union etree_union *flags;
} phdr;
}
%type <etree> exp opt_exp_with_type mustbe_exp opt_at phdr_type phdr_val
-%type <etree> opt_exp_without_type
+%type <etree> opt_exp_without_type opt_subalign
%type <fill> fill_opt fill_exp
%type <name_list> exclude_name_list
%type <wildcard_list> file_NAME_list
%type <name> memspec_at_opt
%type <cname> wildcard_name
%type <wildcard> wildcard_spec
-%token <bigint> INT
+%token <bigint> INT
%token <name> NAME LNAME
%type <integer> length
%type <phdr> phdr_qualifiers
%type <section_phdr> phdr_opt
%type <integer> opt_nocrossrefs
-%right <token> PLUSEQ MINUSEQ MULTEQ DIVEQ '=' LSHIFTEQ RSHIFTEQ ANDEQ OREQ
+%right <token> PLUSEQ MINUSEQ MULTEQ DIVEQ '=' LSHIFTEQ RSHIFTEQ ANDEQ OREQ
%right <token> '?' ':'
%left <token> OROR
%left <token> ANDAND
%left <token> '*' '/' '%'
%right UNARY
-%token END
+%token END
%left <token> '('
%token <token> ALIGN_K BLOCK BIND QUAD SQUAD LONG SHORT BYTE
%token SECTIONS PHDRS SORT DATA_SEGMENT_ALIGN DATA_SEGMENT_END
%token STARTUP HLL SYSLIB FLOAT NOFLOAT NOCROSSREFS
%token ORIGIN FILL
%token LENGTH CREATE_OBJECT_SYMBOLS INPUT GROUP OUTPUT CONSTRUCTORS
-%token ALIGNMOD AT PROVIDE
+%token ALIGNMOD AT SUBALIGN PROVIDE
%type <token> assign_op atype attributes_opt
%type <name> filename
%token CHIP LIST SECT ABSOLUTE LOAD NEWLINE ENDWORD ORDER NAMEWORD ASSERT_K
%%
-file:
+file:
INPUT_SCRIPT script_file
| INPUT_MRI_SCRIPT mri_script_file
| INPUT_VERSION_SCRIPT version_script_file
}
;
-/* SYNTAX WITHIN AN MRI SCRIPT FILE */
+/* SYNTAX WITHIN AN MRI SCRIPT FILE */
mri_script_file:
{
ldlex_mri_script ();
;
mri_script_command:
- CHIP exp
+ CHIP exp
| CHIP exp ',' exp
| NAME {
einfo(_("%P%F: unrecognised keyword in MRI style script '%s'\n"),$1);
config.map_filename = "-";
}
| ORDER ordernamelist
- | ENDWORD
+ | ENDWORD
| PUBLIC NAME '=' exp
{ mri_public($2, $4); }
| PUBLIC NAME ',' exp
{ mri_public($2, $4); }
- | PUBLIC NAME exp
+ | PUBLIC NAME exp
{ mri_public($2, $3); }
| FORMAT NAME
{ mri_format($2); }
{ mri_alignmod($2,$4); }
| ABSOLUTE mri_abs_name_list
| LOAD mri_load_name_list
- | NAMEWORD NAME
- { mri_name($2); }
+ | NAMEWORD NAME
+ { mri_name($2); }
| ALIAS NAME ',' NAME
{ mri_alias($2,$4,0);}
| ALIAS NAME ',' INT
mri_script_lines END
{ ldlex_popstate (); }
| START NAME
- { lang_add_entry ($2, false); }
+ { lang_add_entry ($2, FALSE); }
|
;
| TARGET_K '(' NAME ')'
{ lang_add_target($3); }
| SEARCH_DIR '(' filename ')'
- { ldfile_add_library_path ($3, false); }
+ { ldfile_add_library_path ($3, FALSE); }
| OUTPUT '(' filename ')'
{ lang_add_output($3, 1); }
| OUTPUT_FORMAT '(' NAME ')'
| OUTPUT_FORMAT '(' NAME ',' NAME ',' NAME ')'
{ lang_add_output_format ($3, $5, $7, 1); }
| OUTPUT_ARCH '(' NAME ')'
- { ldfile_set_output_arch($3); }
+ { ldfile_set_output_arch ($3, bfd_arch_unknown); }
| FORCE_COMMON_ALLOCATION
- { command_line.force_common_definition = true ; }
+ { command_line.force_common_definition = TRUE ; }
| INHIBIT_COMMON_ALLOCATION
- { command_line.inhibit_common_definition = true ; }
+ { command_line.inhibit_common_definition = TRUE ; }
| INPUT '(' input_list ')'
| GROUP
{ lang_enter_group (); }
{ lang_leave_group (); }
| MAP '(' filename ')'
{ lang_add_map($3); }
- | INCLUDE filename
+ | INCLUDE filename
{ ldlex_script (); ldfile_open_command_file($2); }
ifile_list END
{ ldlex_popstate (); }
statement_anywhere:
ENTRY '(' NAME ')'
- { lang_add_entry ($3, false); }
+ { lang_add_entry ($3, FALSE); }
| assignment end
+ | ASSERT_K {ldlex_expression ();} '(' exp ',' NAME ')'
+ { ldlex_popstate ();
+ lang_add_assignment (exp_assert ($4, $6)); }
;
/* The '*' and '?' cases are there because the lexer returns them as
wildcard_name
{
$$.name = $1;
- $$.sorted = false;
+ $$.sorted = FALSE;
$$.exclude_name_list = NULL;
}
| EXCLUDE_FILE '(' exclude_name_list ')' wildcard_name
{
$$.name = $5;
- $$.sorted = false;
+ $$.sorted = FALSE;
$$.exclude_name_list = $3;
}
| SORT '(' wildcard_name ')'
{
$$.name = $3;
- $$.sorted = true;
+ $$.sorted = TRUE;
$$.exclude_name_list = NULL;
}
| SORT '(' EXCLUDE_FILE '(' exclude_name_list ')' wildcard_name ')'
{
$$.name = $7;
- $$.sorted = true;
+ $$.sorted = TRUE;
$$.exclude_name_list = $5;
}
;
tmp = (struct name_list *) xmalloc (sizeof *tmp);
tmp->name = $2;
tmp->next = $1;
- $$ = tmp;
+ $$ = tmp;
}
|
wildcard_name
struct wildcard_spec tmp;
tmp.name = $1;
tmp.exclude_name_list = NULL;
- tmp.sorted = false;
+ tmp.sorted = FALSE;
lang_add_wild (&tmp, NULL, ldgram_had_keep);
}
| '[' file_NAME_list ']'
input_section_spec:
input_section_spec_no_keep
| KEEP '('
- { ldgram_had_keep = true; }
+ { ldgram_had_keep = TRUE; }
input_section_spec_no_keep ')'
- { ldgram_had_keep = false; }
+ { ldgram_had_keep = FALSE; }
;
statement:
assignment end
| CREATE_OBJECT_SYMBOLS
{
- lang_add_attribute(lang_object_symbols_statement_enum);
+ lang_add_attribute(lang_object_symbols_statement_enum);
}
| ';'
| CONSTRUCTORS
{
-
- lang_add_attribute(lang_constructors_statement_enum);
+
+ lang_add_attribute(lang_constructors_statement_enum);
}
| SORT '(' CONSTRUCTORS ')'
{
- constructors_sorted = true;
+ constructors_sorted = TRUE;
lang_add_attribute (lang_constructors_statement_enum);
}
| input_section_spec
{
lang_add_data ((int) $1, $3);
}
-
+
| FILL '(' fill_exp ')'
{
lang_add_fill ($3);
statement_list statement
| statement
;
-
+
statement_list_opt:
/* empty */
| statement_list
;
-memory_spec: NAME
- { region = lang_memory_region_lookup($1); }
+memory_spec: NAME
+ { region = lang_memory_region_lookup ($1, TRUE); }
attributes_opt ':'
origin_spec opt_comma length_spec
-
+ {}
;
origin_spec:
floating_point_support:
FLOAT
- { lang_float(true); }
+ { lang_float(TRUE); }
| NOFLOAT
- { lang_float(false); }
+ { lang_float(FALSE); }
;
-
+
nocrossref_list:
/* empty */
{
{ $$ = exp_unop(ABSOLUTE, $3); }
| ALIGN_K '(' exp ')'
{ $$ = exp_unop(ALIGN_K,$3); }
+ | ALIGN_K '(' exp ',' exp ')'
+ { $$ = exp_binop(ALIGN_K,$3,$5); }
| DATA_SEGMENT_ALIGN '(' exp ',' exp ')'
{ $$ = exp_binop (DATA_SEGMENT_ALIGN, $3, $5); }
| DATA_SEGMENT_END '(' exp ')'
memspec_at_opt:
AT '>' NAME { $$ = $3; }
- | { $$ = "*default*"; }
+ | { $$ = 0; }
;
opt_at:
| { $$ = 0; }
;
+opt_subalign:
+ SUBALIGN '(' exp ')' { $$ = $3; }
+ | { $$ = 0; }
+ ;
+
section: NAME { ldlex_expression(); }
- opt_exp_with_type
- opt_at { ldlex_popstate (); ldlex_script (); }
+ opt_exp_with_type
+ opt_at
+ opt_subalign { ldlex_popstate (); ldlex_script (); }
'{'
{
lang_enter_output_section_statement($1, $3,
sectype,
- 0, 0, 0, $4);
+ 0, $5, $4);
}
- statement_list_opt
+ statement_list_opt
'}' { ldlex_popstate (); ldlex_expression (); }
memspec_opt memspec_at_opt phdr_opt fill_opt
{
ldlex_popstate ();
- lang_leave_output_section_statement ($14, $11, $13, $12);
+ lang_leave_output_section_statement ($15, $12, $14, $13);
}
opt_comma
+ {}
| OVERLAY
{ ldlex_expression (); }
- opt_exp_without_type opt_nocrossrefs opt_at
+ opt_exp_without_type opt_nocrossrefs opt_at opt_subalign
{ ldlex_popstate (); ldlex_script (); }
- '{'
+ '{'
{
- lang_enter_overlay ($3, $5, (int) $4);
+ lang_enter_overlay ($3, $6);
}
overlay_section
'}'
memspec_opt memspec_at_opt phdr_opt fill_opt
{
ldlex_popstate ();
- lang_leave_overlay ($15, $12, $14, $13);
+ lang_leave_overlay ($5, (int) $4,
+ $16, $13, $15, $14);
}
opt_comma
| /* The GROUP case is just enough to support the gcc
memspec_opt:
'>' NAME
{ $$ = $2; }
- | { $$ = "*default*"; }
+ | { $$ = DEFAULT_MEMORY_REGION; }
;
phdr_opt:
n = ((struct lang_output_section_phdr_list *)
xmalloc (sizeof *n));
n->name = $3;
- n->used = false;
+ n->used = FALSE;
n->next = $1;
$$ = n;
}
{
"PT_NULL", "PT_LOAD", "PT_DYNAMIC",
"PT_INTERP", "PT_NOTE", "PT_SHLIB",
- "PT_PHDR"
+ "PT_PHDR", "PT_TLS"
};
s = $1->name.name;
$$ = exp_intop (i);
break;
}
+ if (i == sizeof phdr_types / sizeof phdr_types[0])
+ {
+ if (strcmp (s, "PT_GNU_EH_FRAME") == 0)
+ $$ = exp_intop (0x6474e550);
+ else if (strcmp (s, "PT_GNU_STACK") == 0)
+ $$ = exp_intop (0x6474e551);
+ else
+ {
+ einfo (_("\
+%X%P:%S: unknown phdr type `%s' (try integer literal)\n"),
+ s);
+ $$ = exp_intop (0);
+ }
+ }
}
}
;
{
$$ = $3;
if (strcmp ($1, "FILEHDR") == 0 && $2 == NULL)
- $$.filehdr = true;
+ $$.filehdr = TRUE;
else if (strcmp ($1, "PHDRS") == 0 && $2 == NULL)
- $$.phdrs = true;
+ $$.phdrs = TRUE;
else if (strcmp ($1, "FLAGS") == 0 && $2 != NULL)
$$.flags = $2;
else
{
$$ = lang_new_vers_pattern ($1, $3, ldgram_vers_current_lang);
}
+ | vers_defns ';' EXTERN NAME '{'
+ {
+ $<name>$ = ldgram_vers_current_lang;
+ ldgram_vers_current_lang = $4;
+ }
+ vers_defns opt_semicolon '}'
+ {
+ $$ = $7;
+ ldgram_vers_current_lang = $<name>6;
+ }
| EXTERN NAME '{'
{
$<name>$ = ldgram_vers_current_lang;
ldgram_vers_current_lang = $2;
}
- vers_defns '}'
+ vers_defns opt_semicolon '}'
{
$$ = $5;
ldgram_vers_current_lang = $<name>4;
}
;
+opt_semicolon:
+ /* empty */
+ | ';'
+ ;
+
%%
void
-yyerror(arg)
+yyerror(arg)
const char *arg;
-{
+{
if (ldfile_assumed_script)
einfo (_("%P:%s: file format not recognized; treating as linker script\n"),
ldfile_input_filename);
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