/* A YACC grammer to parse a superset of the AT&T linker scripting languaue.
- Copyright (C) 1991, 1993 Free Software Foundation, Inc.
+ Copyright (C) 1991, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
Written by Steve Chamberlain of Cygnus Support (steve@cygnus.com).
This file is part of GNU ld.
#define YYDEBUG 1
#endif
-static int typebits;
+static enum section_type sectype;
lang_memory_region_type *region;
char *name;
int token;
union etree_union *etree;
+ struct phdr_info
+ {
+ boolean filehdr;
+ boolean phdrs;
+ union etree_union *at;
+ union etree_union *flags;
+ } phdr;
+ struct lang_nocrossref *nocrossref;
}
-%type <etree> exp opt_exp_with_type mustbe_exp opt_at
+%type <etree> exp opt_exp_with_type mustbe_exp opt_at phdr_type phdr_val
%type <integer> fill_opt
-%type <name> memspec_opt
+%type <name> memspec_opt casesymlist
%token <integer> INT
%token <name> NAME LNAME
-%type <integer> length
+%type <integer> length
+%type <phdr> phdr_qualifiers
+%type <nocrossref> nocrossref_list
%right <token> PLUSEQ MINUSEQ MULTEQ DIVEQ '=' LSHIFTEQ RSHIFTEQ ANDEQ OREQ
%right <token> '?' ':'
%right UNARY
%token END
%left <token> '('
-%token <token> ALIGN_K BLOCK QUAD LONG SHORT BYTE
-%token SECTIONS
+%token <token> ALIGN_K BLOCK BIND QUAD LONG SHORT BYTE
+%token SECTIONS PHDRS
%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
-%token STARTUP HLL SYSLIB FLOAT NOFLOAT
+%token <integer> SIZEOF NEXT ADDR LOADADDR
+%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
+%type <token> assign_op atype
%type <name> filename
%token CHIP LIST SECT ABSOLUTE LOAD NEWLINE ENDWORD ORDER NAMEWORD
%token FORMAT PUBLIC DEFSYMEND BASE ALIAS TRUNCATE REL
/* SYNTAX WITHIN AN MRI SCRIPT FILE */
mri_script_file:
- { ldlex_mri_script();
- PUSH_ERROR("MRI style script");
+ {
+ ldlex_mri_script ();
+ PUSH_ERROR ("MRI style script");
}
mri_script_lines
- { ldlex_popstate();
- POP_ERROR();
+ {
+ ldlex_popstate ();
+ mri_draw_tree ();
+ POP_ERROR ();
}
;
{ mri_output_section($2, $4);}
| ALIGN_K NAME '=' exp
{ mri_align($2,$4); }
+ | ALIGN_K NAME ',' exp
+ { mri_align($2,$4); }
| ALIGNMOD NAME '=' exp
{ mri_alignmod($2,$4); }
+ | ALIGNMOD NAME ',' exp
+ { mri_alignmod($2,$4); }
| ABSOLUTE mri_abs_name_list
| LOAD mri_load_name_list
| NAMEWORD NAME
| INCLUDE filename
{ ldfile_open_command_file ($2); } mri_script_lines END
| START NAME
- { lang_add_entry ($2, 0); }
+ { lang_add_entry ($2, false); }
|
;
;
casesymlist:
- /* empty */
+ /* empty */ { $$ = NULL; }
| NAME
| casesymlist ',' NAME
;
ifile_p1:
memory
| sections
+ | phdrs
| startup
| high_level_library
| low_level_library
{ lang_add_map($3); }
| INCLUDE filename
{ ldfile_open_command_file($2); } ifile_list END
+ | NOCROSSREFS '(' nocrossref_list ')'
+ {
+ lang_add_nocrossref ($3);
+ }
;
input_list:
statement_anywhere:
ENTRY '(' NAME ')'
- { lang_add_entry ($3, 0); }
+ { lang_add_entry ($3, false); }
| assignment end
;
+/* The '*' and '?' cases are there because the lexer returns them as
+ separate tokens rather than as NAME. */
file_NAME_list:
NAME
- { lang_add_wild($1, current_file); }
+ { lang_add_wild ($1, current_file); }
+ | '*'
+ { lang_add_wild ("*", current_file); }
+ | '?'
+ { lang_add_wild ("?", current_file); }
| file_NAME_list opt_comma NAME
- { lang_add_wild($3, current_file); }
+ { lang_add_wild ($3, current_file); }
+ | file_NAME_list opt_comma '*'
+ { lang_add_wild ("*", current_file); }
+ | file_NAME_list opt_comma '?'
+ { lang_add_wild ("?", current_file); }
;
input_section_spec:
']'
| NAME
{
- current_file =$1;
+ current_file = $1;
+ }
+ '(' file_NAME_list ')'
+ | '?'
+ /* This case is needed because the lexer returns a
+ single question mark as '?' rather than NAME. */
+ {
+ current_file = "?";
}
'(' file_NAME_list ')'
| '*'
lang_add_attribute(lang_constructors_statement_enum);
}
| input_section_spec
- | length '(' exp ')'
+ | length '(' mustbe_exp ')'
{
lang_add_data((int) $1,$3);
}
- | FILL '(' exp ')'
+ | FILL '(' mustbe_exp ')'
{
lang_add_fill
(exp_get_value_int($3,
{ lang_float(false); }
;
+nocrossref_list:
+ /* empty */
+ {
+ $$ = NULL;
+ }
+ | NAME nocrossref_list
+ {
+ struct lang_nocrossref *n;
+
+ n = (struct lang_nocrossref *) xmalloc (sizeof *n);
+ n->name = $1;
+ n->next = $2;
+ $$ = n;
+ }
+ | NAME ',' nocrossref_list
+ {
+ struct lang_nocrossref *n;
+
+ n = (struct lang_nocrossref *) xmalloc (sizeof *n);
+ n->name = $1;
+ n->next = $3;
+ $$ = n;
+ }
+ ;
mustbe_exp: { ldlex_expression(); }
exp
{ $$ = exp_nameop(SIZEOF,$3); }
| ADDR '(' NAME ')'
{ $$ = exp_nameop(ADDR,$3); }
+ | LOADADDR '(' NAME ')'
+ { $$ = exp_nameop(LOADADDR,$3); }
| ABSOLUTE '(' exp ')'
{ $$ = exp_unop(ABSOLUTE, $3); }
| ALIGN_K '(' exp ')'
section: NAME { ldlex_expression(); }
opt_exp_with_type
- opt_at { ldlex_popstate(); }
+ opt_at { ldlex_popstate (); ldlex_script (); }
'{'
{
- lang_enter_output_section_statement($1,$3,typebits,0,0,0,$4);
+ lang_enter_output_section_statement($1, $3,
+ sectype,
+ 0, 0, 0, $4);
}
statement_list_opt
- '}' {ldlex_expression();} memspec_opt fill_opt
+ '}' { ldlex_popstate (); ldlex_expression (); }
+ memspec_opt phdr_opt fill_opt
{
ldlex_popstate();
- lang_leave_output_section_statement($12, $11);
+ lang_leave_output_section_statement($13, $11);
}
-opt_comma
-
+ 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
+ to mean. */
+ GROUP { ldlex_expression (); }
+ opt_exp_with_type
+ {
+ ldlex_popstate ();
+ lang_add_assignment (exp_assop ('=', ".", $3));
+ }
+ '{' sec_or_group_p1 '}'
;
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; }
+ NOLOAD { sectype = noload_section; }
+ | DSECT { sectype = dsect_section; }
+ | COPY { sectype = copy_section; }
+ | INFO { sectype = info_section; }
+ | OVERLAY { sectype = overlay_section; }
;
+atype:
+ '(' type ')'
+ | /* EMPTY */ { sectype = normal_section; }
+ ;
opt_exp_with_type:
- exp ':' { $$ = $1; typebits =0;}
- | exp '(' type ')' ':' { $$ = $1; }
- | ':' { $$= (etree_type *)NULL; typebits = 0; }
- | '(' type ')' ':' { $$= (etree_type *)NULL; }
+ exp atype ':' { $$ = $1; }
+ | atype ':' { $$ = (etree_type *)NULL; }
+ | /* The BIND cases are to support the gcc svr3.ifile
+ script. They aren't intended to implement full
+ support for the BIND keyword. I'm not even sure
+ what BIND is supposed to mean. */
+ BIND '(' exp ')' atype ':' { $$ = $3; }
+ | BIND '(' exp ')' BLOCK '(' exp ')' atype ':'
+ { $$ = $3; }
;
memspec_opt:
{ $$ = $2; }
| { $$ = "*default*"; }
;
+
+phdr_opt:
+ /* empty */
+ | phdr_opt ':' NAME
+ {
+ lang_section_in_phdr ($3);
+ }
+ ;
+
+phdrs:
+ PHDRS '{' phdr_list '}'
+ ;
+
+phdr_list:
+ /* empty */
+ | phdr_list phdr
+ ;
+
+phdr:
+ NAME { ldlex_expression (); }
+ phdr_type phdr_qualifiers { ldlex_popstate (); }
+ ';'
+ {
+ lang_new_phdr ($1, $3, $4.filehdr, $4.phdrs, $4.at,
+ $4.flags);
+ }
+ ;
+
+phdr_type:
+ exp
+ {
+ $$ = $1;
+
+ if ($1->type.node_class == etree_name
+ && $1->type.node_code == NAME)
+ {
+ const char *s;
+ unsigned int i;
+ static const char * const phdr_types[] =
+ {
+ "PT_NULL", "PT_LOAD", "PT_DYNAMIC",
+ "PT_INTERP", "PT_NOTE", "PT_SHLIB",
+ "PT_PHDR"
+ };
+
+ s = $1->name.name;
+ for (i = 0;
+ i < sizeof phdr_types / sizeof phdr_types[0];
+ i++)
+ if (strcmp (s, phdr_types[i]) == 0)
+ {
+ $$ = exp_intop (i);
+ break;
+ }
+ }
+ }
+ ;
+
+phdr_qualifiers:
+ /* empty */
+ {
+ memset (&$$, 0, sizeof (struct phdr_info));
+ }
+ | NAME phdr_val phdr_qualifiers
+ {
+ $$ = $3;
+ if (strcmp ($1, "FILEHDR") == 0 && $2 == NULL)
+ $$.filehdr = true;
+ else if (strcmp ($1, "PHDRS") == 0 && $2 == NULL)
+ $$.phdrs = true;
+ else if (strcmp ($1, "FLAGS") == 0 && $2 != NULL)
+ $$.flags = $2;
+ else
+ einfo ("%X%P:%S: PHDRS syntax error at `%s'\n", $1);
+ }
+ | AT '(' exp ')' phdr_qualifiers
+ {
+ $$ = $5;
+ $$.at = $3;
+ }
+ ;
+
+phdr_val:
+ /* empty */
+ {
+ $$ = NULL;
+ }
+ | '(' exp ')'
+ {
+ $$ = $2;
+ }
+ ;
+
%%
void
yyerror(arg)
projects / deliverable / binutils-gdb.git / blobdiff