/* A YACC grammer to parse a superset of the AT&T linker scripting languaue.
- Copyright (C) 1991, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
+ Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000
+ Free Software Foundation, Inc.
Written by Steve Chamberlain of Cygnus Support (steve@cygnus.com).
This file is part of GNU ld.
#include "ldmisc.h"
#include "ldmain.h"
#include "mri.h"
+#include "ldctor.h"
#include "ldlex.h"
#ifndef YYDEBUG
lang_memory_region_type *region;
-
-char *current_file;
+struct wildcard_spec current_file;
boolean ldgram_want_filename = true;
boolean had_script = false;
boolean force_make_executable = false;
boolean ldgram_in_script = false;
boolean ldgram_had_equals = false;
-
+boolean ldgram_had_keep = false;
+char *ldgram_vers_current_lang = NULL;
#define ERROR_NAME_MAX 20
static char *error_names[ERROR_NAME_MAX];
%union {
bfd_vma integer;
char *name;
+ const char *cname;
+ struct wildcard_spec wildcard;
+ struct name_list *name_list;
int token;
union etree_union *etree;
struct phdr_info
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_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 <name> memspec_opt casesymlist
+%type <name> memspec_at_opt
+%type <cname> wildcard_name
+%type <wildcard> wildcard_spec
%token <integer> INT
%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> '?' ':'
%right UNARY
%token END
%left <token> '('
-%token <token> ALIGN_K BLOCK BIND QUAD LONG SHORT BYTE
-%token SECTIONS PHDRS
+%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 SIZEOF_HEADERS
%token MEMORY DEFSYMEND
%token NOLOAD DSECT COPY INFO OVERLAY
%token NAME LNAME DEFINED TARGET_K SEARCH_DIR MAP ENTRY
-%token <integer> SIZEOF NEXT ADDR LOADADDR
+%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
+%type <token> assign_op atype attributes_opt
%type <name> filename
-%token CHIP LIST SECT ABSOLUTE LOAD NEWLINE ENDWORD ORDER NAMEWORD
+%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
;
mri_script_file:
{
ldlex_mri_script ();
- PUSH_ERROR ("MRI style script");
+ PUSH_ERROR (_("MRI style script"));
}
mri_script_lines
{
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 {
config.map_filename = "-";
extern_name_list:
NAME
{ ldlang_add_undef ($1); }
+ | extern_name_list NAME
+ { ldlang_add_undef ($2); }
| extern_name_list ',' NAME
{ ldlang_add_undef ($3); }
;
| low_level_library
| floating_point_support
| statement_anywhere
+ | version
| ';'
| TARGET_K '(' NAME ')'
{ lang_add_target($3); }
{
lang_add_nocrossref ($3);
}
+ | EXTERN '(' extern_name_list ')'
;
input_list:
/* The '*' and '?' cases are there because the lexer returns them as
separate tokens rather than as NAME. */
-file_NAME_list:
+wildcard_name:
NAME
- { lang_add_wild ($1, current_file); }
+ {
+ $$ = $1;
+ }
| '*'
- { lang_add_wild ("*", current_file); }
+ {
+ $$ = "*";
+ }
| '?'
- { lang_add_wild ("?", current_file); }
- | file_NAME_list opt_comma NAME
- { lang_add_wild ($3, current_file); }
- | file_NAME_list opt_comma '*'
- { lang_add_wild ("*", current_file); }
- | file_NAME_list opt_comma '?'
- { lang_add_wild ("?", current_file); }
+ {
+ $$ = "?";
+ }
;
-input_section_spec:
- NAME
- {
- lang_add_wild((char *)NULL, $1);
- }
- | '['
+wildcard_spec:
+ wildcard_name
{
- current_file = (char *)NULL;
+ $$.name = $1;
+ $$.sorted = false;
+ $$.exclude_name_list = NULL;
}
- file_NAME_list
- ']'
- | NAME
+ | EXCLUDE_FILE '(' exclude_name_list ')' wildcard_name
{
- current_file = $1;
+ $$.name = $5;
+ $$.sorted = false;
+ $$.exclude_name_list = $3;
}
- '(' file_NAME_list ')'
- | '?'
- /* This case is needed because the lexer returns a
- single question mark as '?' rather than NAME. */
+ | SORT '(' wildcard_name ')'
{
- current_file = "?";
+ $$.name = $3;
+ $$.sorted = true;
+ $$.exclude_name_list = NULL;
}
- '(' file_NAME_list ')'
- | '*'
+ | SORT '(' EXCLUDE_FILE '(' exclude_name_list ')' wildcard_name ')'
{
- current_file = (char *)NULL;
+ $$.name = $7;
+ $$.sorted = true;
+ $$.exclude_name_list = $5;
+ }
+ ;
+
+
+
+exclude_name_list:
+ exclude_name_list ',' wildcard_name
+ {
+ struct name_list *tmp;
+ tmp = (struct name_list *) xmalloc (sizeof *tmp);
+ tmp->name = $3;
+ tmp->next = $1;
+ $$ = tmp;
+ }
+ |
+ wildcard_name
+ {
+ struct name_list *tmp;
+ tmp = (struct name_list *) xmalloc (sizeof *tmp);
+ tmp->name = $1;
+ tmp->next = NULL;
+ $$ = tmp;
+ }
+ ;
+
+file_NAME_list:
+ wildcard_spec
+ {
+ lang_add_wild ($1.name, $1.sorted,
+ current_file.name,
+ current_file.sorted,
+ ldgram_had_keep, $1.exclude_name_list);
+ }
+ | file_NAME_list opt_comma wildcard_spec
+ {
+ lang_add_wild ($3.name, $3.sorted,
+ current_file.name,
+ current_file.sorted,
+ ldgram_had_keep, $3.exclude_name_list);
+ }
+ ;
+
+input_section_spec_no_keep:
+ NAME
+ {
+ lang_add_wild (NULL, false, $1, false,
+ ldgram_had_keep, NULL);
+ }
+ | '['
+ {
+ current_file.name = NULL;
+ current_file.sorted = false;
+ }
+ file_NAME_list ']'
+ | wildcard_spec
+ {
+ current_file = $1;
+ /* '*' matches any file name. */
+ if (strcmp (current_file.name, "*") == 0)
+ current_file.name = NULL;
}
'(' file_NAME_list ')'
;
+input_section_spec:
+ input_section_spec_no_keep
+ | KEEP '('
+ { ldgram_had_keep = true; }
+ input_section_spec_no_keep ')'
+ { ldgram_had_keep = false; }
+ ;
+
statement:
assignment end
| CREATE_OBJECT_SYMBOLS
lang_add_attribute(lang_constructors_statement_enum);
}
+ | SORT '(' CONSTRUCTORS ')'
+ {
+ constructors_sorted = true;
+ lang_add_attribute (lang_constructors_statement_enum);
+ }
| input_section_spec
| length '(' mustbe_exp ')'
{
length:
QUAD
{ $$ = $1; }
+ | SQUAD
+ { $$ = $1; }
| LONG
{ $$ = $1; }
| SHORT
region->origin =
exp_get_vma($3, 0L,"origin", lang_first_phase_enum);
}
- ; length_spec:
+ ;
+
+length_spec:
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:
{ $$ = exp_unop(ALIGN_K,$3); }
| NAME
{ $$ = 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; }
| { $$ = 0; }
}
statement_list_opt
'}' { ldlex_popstate (); ldlex_expression (); }
- memspec_opt phdr_opt fill_opt
+ memspec_opt memspec_at_opt phdr_opt fill_opt
{
- ldlex_popstate();
- lang_leave_output_section_statement($13, $11);
+ ldlex_popstate ();
+ lang_leave_output_section_statement ($14, $11, $13, $12);
}
opt_comma
+ | OVERLAY
+ { ldlex_expression (); }
+ opt_exp_without_type opt_nocrossrefs opt_at
+ { ldlex_popstate (); ldlex_script (); }
+ '{'
+ {
+ lang_enter_overlay ($3, $5, (int) $4);
+ }
+ overlay_section
+ '}'
+ { ldlex_popstate (); ldlex_expression (); }
+ memspec_opt memspec_at_opt phdr_opt fill_opt
+ {
+ ldlex_popstate ();
+ lang_leave_overlay ($15, $12, $14, $13);
+ }
+ opt_comma
| /* The GROUP case is just enough to support the gcc
svr3.ifile script. It is not intended to be full
support. I'm not even sure what GROUP is supposed
atype:
'(' type ')'
| /* EMPTY */ { sectype = normal_section; }
+ | '(' ')' { sectype = normal_section; }
;
opt_exp_with_type:
{ $$ = $3; }
;
+opt_exp_without_type:
+ exp ':' { $$ = $1; }
+ | ':' { $$ = (etree_type *) NULL; }
+ ;
+
+opt_nocrossrefs:
+ /* empty */
+ { $$ = 0; }
+ | NOCROSSREFS
+ { $$ = 1; }
+ ;
+
memspec_opt:
'>' NAME
{ $$ = $2; }
phdr_opt:
/* empty */
+ {
+ $$ = NULL;
+ }
| phdr_opt ':' NAME
{
- lang_section_in_phdr ($3);
+ 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;
+ $$ = n;
}
;
+overlay_section:
+ /* empty */
+ | overlay_section
+ NAME
+ {
+ ldlex_script ();
+ lang_enter_overlay_section ($2);
+ }
+ '{' statement_list_opt '}'
+ { ldlex_popstate (); ldlex_expression (); }
+ phdr_opt fill_opt
+ {
+ ldlex_popstate ();
+ lang_leave_overlay_section ($9, $8);
+ }
+ opt_comma
+ ;
+
phdrs:
PHDRS '{' phdr_list '}'
;
else if (strcmp ($1, "FLAGS") == 0 && $2 != NULL)
$$.flags = $2;
else
- einfo ("%X%P:%S: PHDRS syntax error at `%s'\n", $1);
+ einfo (_("%X%P:%S: PHDRS syntax error at `%s'\n"), $1);
}
| AT '(' exp ')' phdr_qualifiers
{
}
;
+/* 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 '}'
+ {
+ 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",
+ 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]);
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