darling-gdb/gdb/c-exp.y
Fred Fish bf229b4ea5 * c-exp.y (c_create_fundamental_type): New function to create
language specific fundamental types for C.
	* m2-exp.y (m2_create_fundamental_type):  New function to create
	language specific fundamental types for Modula 2.
	* c-exp.y (c_language_defn, cplus_language_defn):  Add
	c_create_fundamental_type to language struct initializers.
	* m2-exp.y (m2_language_defn):  Add m2_create_fundamental_type
	to language struct initializers.
	* dwarfread.c (expression.h, language.h):  Include.
	* dwarfread.c (ftypes):  New array to hold fundamental types
	for current compilation unit.
	* dwarfread.c (cu_language_defn):  New pointer to language
	struct for language of current compilation unit.
	* dwarfread.c (dwarf_fundamental_type):  New function to
	create/lookup fundamental types.
	* dwarfread.c (set_cu_language):  Initialize cu_language_defn.
	* dwarfread.c (throughout):  Replace lookup_fundamental_type
	with dwarf_fundamental_type.
	* dwarfread.c (read_file_scope):  Zero out ftypes for each new
	compilation unit (may be different language or different objfile).
	* gdbtypes.c (lookup_fundamental_type):  Move actual type
	creations into language specific fundamental type creation
	functions and call via create_fundamental_type.  Add comment
	about this function being obsolescent.
	* gdbtypes.h (FT_BYTE, FT_UNSIGNED_BYTE):  New types, true byte
	sized signed and unsigned integers.
	* gdbtypes.h (FT_NUM_MEMBERS):  Increment, new types added.
	* language.c (language_def):  New function to lookup a language
	struct given it's enumeration.
	* language.h (struct language_defn):  Add la_fund_type, a pointer
	to a function that creates fundamental types for this language.
	* language.h (create_fundamental_type):  New macro to create
	fundamental types based on the current language.
	* language.h (language_def):  Add prototype.
	* language.c (unk_lang_create_fundamental_type):  New function
	for initializing language structs, calls error if called.
	* language.c (unk_language_defn, auto_language_defn,
	local_language_defn):  Use unk_lang_create_fundamental_type.
	**** start-sanitize-chill ****
	ch-exp.y (chill_create_fundamental_type):  New function.
	ch-exp.y (chill_language_defn):  Add chill_create_fundamental_type.
	ch-exp.y (_initialize_chill_exp):  BOOL types are only one byte.
	**** end-sanitize-chill ****
1992-12-03 20:28:16 +00:00

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/* YACC parser for C expressions, for GDB.
Copyright (C) 1986, 1989, 1990, 1991 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Parse a C expression from text in a string,
and return the result as a struct expression pointer.
That structure contains arithmetic operations in reverse polish,
with constants represented by operations that are followed by special data.
See expression.h for the details of the format.
What is important here is that it can be built up sequentially
during the process of parsing; the lower levels of the tree always
come first in the result.
Note that malloc's and realloc's in this file are transformed to
xmalloc and xrealloc respectively by the same sed command in the
makefile that remaps any other malloc/realloc inserted by the parser
generator. Doing this with #defines and trying to control the interaction
with include files (<malloc.h> and <stdlib.h> for example) just became
too messy, particularly when such includes can be inserted at random
times by the parser generator. */
%{
#include <stdio.h>
#include <string.h>
#include "defs.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "frame.h"
#include "expression.h"
#include "parser-defs.h"
#include "value.h"
#include "language.h"
#include "bfd.h"
#include "symfile.h"
#include "objfiles.h"
/* These MUST be included in any grammar file!!!! Please choose unique names!
Note that this are a combined list of variables that can be produced
by any one of bison, byacc, or yacc. */
#define yymaxdepth c_maxdepth
#define yyparse c_parse
#define yylex c_lex
#define yyerror c_error
#define yylval c_lval
#define yychar c_char
#define yydebug c_debug
#define yypact c_pact
#define yyr1 c_r1
#define yyr2 c_r2
#define yydef c_def
#define yychk c_chk
#define yypgo c_pgo
#define yyact c_act
#define yyexca c_exca
#define yyerrflag c_errflag
#define yynerrs c_nerrs
#define yyps c_ps
#define yypv c_pv
#define yys c_s
#define yy_yys c_yys
#define yystate c_state
#define yytmp c_tmp
#define yyv c_v
#define yy_yyv c_yyv
#define yyval c_val
#define yylloc c_lloc
#define yyss c_yyss /* byacc */
#define yyssp c_yysp /* byacc */
#define yyvs c_yyvs /* byacc */
#define yyvsp c_yyvsp /* byacc */
int
yyparse PARAMS ((void));
int
yylex PARAMS ((void));
void
yyerror PARAMS ((char *));
/* #define YYDEBUG 1 */
%}
/* Although the yacc "value" of an expression is not used,
since the result is stored in the structure being created,
other node types do have values. */
%union
{
LONGEST lval;
unsigned LONGEST ulval;
struct {
LONGEST val;
struct type *type;
} typed_val;
double dval;
struct symbol *sym;
struct type *tval;
struct stoken sval;
struct ttype tsym;
struct symtoken ssym;
int voidval;
struct block *bval;
enum exp_opcode opcode;
struct internalvar *ivar;
struct type **tvec;
int *ivec;
}
%{
/* YYSTYPE gets defined by %union */
static int
parse_number PARAMS ((char *, int, int, YYSTYPE *));
%}
%type <voidval> exp exp1 type_exp start variable qualified_name
%type <tval> type typebase
%type <tvec> nonempty_typelist
/* %type <bval> block */
/* Fancy type parsing. */
%type <voidval> func_mod direct_abs_decl abs_decl
%type <tval> ptype
%type <lval> array_mod
%token <typed_val> INT
%token <dval> FLOAT
/* Both NAME and TYPENAME tokens represent symbols in the input,
and both convey their data as strings.
But a TYPENAME is a string that happens to be defined as a typedef
or builtin type name (such as int or char)
and a NAME is any other symbol.
Contexts where this distinction is not important can use the
nonterminal "name", which matches either NAME or TYPENAME. */
%token <sval> STRING
%token <ssym> NAME /* BLOCKNAME defined below to give it higher precedence. */
%token <tsym> TYPENAME
%type <sval> name
%type <ssym> name_not_typename
%type <tsym> typename
/* A NAME_OR_INT is a symbol which is not known in the symbol table,
but which would parse as a valid number in the current input radix.
E.g. "c" when input_radix==16. Depending on the parse, it will be
turned into a name or into a number. */
%token <ssym> NAME_OR_INT
%token STRUCT CLASS UNION ENUM SIZEOF UNSIGNED COLONCOLON
%token TEMPLATE
%token ERROR
/* Special type cases, put in to allow the parser to distinguish different
legal basetypes. */
%token SIGNED_KEYWORD LONG SHORT INT_KEYWORD CONST_KEYWORD VOLATILE_KEYWORD
%token <lval> LAST REGNAME
%token <ivar> VARIABLE
%token <opcode> ASSIGN_MODIFY
/* C++ */
%token THIS
%left ','
%left ABOVE_COMMA
%right '=' ASSIGN_MODIFY
%right '?'
%left OROR
%left ANDAND
%left '|'
%left '^'
%left '&'
%left EQUAL NOTEQUAL
%left '<' '>' LEQ GEQ
%left LSH RSH
%left '@'
%left '+' '-'
%left '*' '/' '%'
%right UNARY INCREMENT DECREMENT
%right ARROW '.' '[' '('
%token <ssym> BLOCKNAME
%type <bval> block
%left COLONCOLON
%%
start : exp1
| type_exp
;
type_exp: type
{ write_exp_elt_opcode(OP_TYPE);
write_exp_elt_type($1);
write_exp_elt_opcode(OP_TYPE);}
;
/* Expressions, including the comma operator. */
exp1 : exp
| exp1 ',' exp
{ write_exp_elt_opcode (BINOP_COMMA); }
;
/* Expressions, not including the comma operator. */
exp : '*' exp %prec UNARY
{ write_exp_elt_opcode (UNOP_IND); }
exp : '&' exp %prec UNARY
{ write_exp_elt_opcode (UNOP_ADDR); }
exp : '-' exp %prec UNARY
{ write_exp_elt_opcode (UNOP_NEG); }
;
exp : '!' exp %prec UNARY
{ write_exp_elt_opcode (UNOP_LOGICAL_NOT); }
;
exp : '~' exp %prec UNARY
{ write_exp_elt_opcode (UNOP_COMPLEMENT); }
;
exp : INCREMENT exp %prec UNARY
{ write_exp_elt_opcode (UNOP_PREINCREMENT); }
;
exp : DECREMENT exp %prec UNARY
{ write_exp_elt_opcode (UNOP_PREDECREMENT); }
;
exp : exp INCREMENT %prec UNARY
{ write_exp_elt_opcode (UNOP_POSTINCREMENT); }
;
exp : exp DECREMENT %prec UNARY
{ write_exp_elt_opcode (UNOP_POSTDECREMENT); }
;
exp : SIZEOF exp %prec UNARY
{ write_exp_elt_opcode (UNOP_SIZEOF); }
;
exp : exp ARROW name
{ write_exp_elt_opcode (STRUCTOP_PTR);
write_exp_string ($3);
write_exp_elt_opcode (STRUCTOP_PTR); }
;
exp : exp ARROW qualified_name
{ /* exp->type::name becomes exp->*(&type::name) */
/* Note: this doesn't work if name is a
static member! FIXME */
write_exp_elt_opcode (UNOP_ADDR);
write_exp_elt_opcode (STRUCTOP_MPTR); }
;
exp : exp ARROW '*' exp
{ write_exp_elt_opcode (STRUCTOP_MPTR); }
;
exp : exp '.' name
{ write_exp_elt_opcode (STRUCTOP_STRUCT);
write_exp_string ($3);
write_exp_elt_opcode (STRUCTOP_STRUCT); }
;
exp : exp '.' qualified_name
{ /* exp.type::name becomes exp.*(&type::name) */
/* Note: this doesn't work if name is a
static member! FIXME */
write_exp_elt_opcode (UNOP_ADDR);
write_exp_elt_opcode (STRUCTOP_MEMBER); }
;
exp : exp '.' '*' exp
{ write_exp_elt_opcode (STRUCTOP_MEMBER); }
;
exp : exp '[' exp1 ']'
{ write_exp_elt_opcode (BINOP_SUBSCRIPT); }
;
exp : exp '('
/* This is to save the value of arglist_len
being accumulated by an outer function call. */
{ start_arglist (); }
arglist ')' %prec ARROW
{ write_exp_elt_opcode (OP_FUNCALL);
write_exp_elt_longcst ((LONGEST) end_arglist ());
write_exp_elt_opcode (OP_FUNCALL); }
;
arglist :
;
arglist : exp
{ arglist_len = 1; }
;
arglist : arglist ',' exp %prec ABOVE_COMMA
{ arglist_len++; }
;
exp : '{' type '}' exp %prec UNARY
{ write_exp_elt_opcode (UNOP_MEMVAL);
write_exp_elt_type ($2);
write_exp_elt_opcode (UNOP_MEMVAL); }
;
exp : '(' type ')' exp %prec UNARY
{ write_exp_elt_opcode (UNOP_CAST);
write_exp_elt_type ($2);
write_exp_elt_opcode (UNOP_CAST); }
;
exp : '(' exp1 ')'
{ }
;
/* Binary operators in order of decreasing precedence. */
exp : exp '@' exp
{ write_exp_elt_opcode (BINOP_REPEAT); }
;
exp : exp '*' exp
{ write_exp_elt_opcode (BINOP_MUL); }
;
exp : exp '/' exp
{ write_exp_elt_opcode (BINOP_DIV); }
;
exp : exp '%' exp
{ write_exp_elt_opcode (BINOP_REM); }
;
exp : exp '+' exp
{ write_exp_elt_opcode (BINOP_ADD); }
;
exp : exp '-' exp
{ write_exp_elt_opcode (BINOP_SUB); }
;
exp : exp LSH exp
{ write_exp_elt_opcode (BINOP_LSH); }
;
exp : exp RSH exp
{ write_exp_elt_opcode (BINOP_RSH); }
;
exp : exp EQUAL exp
{ write_exp_elt_opcode (BINOP_EQUAL); }
;
exp : exp NOTEQUAL exp
{ write_exp_elt_opcode (BINOP_NOTEQUAL); }
;
exp : exp LEQ exp
{ write_exp_elt_opcode (BINOP_LEQ); }
;
exp : exp GEQ exp
{ write_exp_elt_opcode (BINOP_GEQ); }
;
exp : exp '<' exp
{ write_exp_elt_opcode (BINOP_LESS); }
;
exp : exp '>' exp
{ write_exp_elt_opcode (BINOP_GTR); }
;
exp : exp '&' exp
{ write_exp_elt_opcode (BINOP_BITWISE_AND); }
;
exp : exp '^' exp
{ write_exp_elt_opcode (BINOP_BITWISE_XOR); }
;
exp : exp '|' exp
{ write_exp_elt_opcode (BINOP_BITWISE_IOR); }
;
exp : exp ANDAND exp
{ write_exp_elt_opcode (BINOP_LOGICAL_AND); }
;
exp : exp OROR exp
{ write_exp_elt_opcode (BINOP_LOGICAL_OR); }
;
exp : exp '?' exp ':' exp %prec '?'
{ write_exp_elt_opcode (TERNOP_COND); }
;
exp : exp '=' exp
{ write_exp_elt_opcode (BINOP_ASSIGN); }
;
exp : exp ASSIGN_MODIFY exp
{ write_exp_elt_opcode (BINOP_ASSIGN_MODIFY);
write_exp_elt_opcode ($2);
write_exp_elt_opcode (BINOP_ASSIGN_MODIFY); }
;
exp : INT
{ write_exp_elt_opcode (OP_LONG);
write_exp_elt_type ($1.type);
write_exp_elt_longcst ((LONGEST)($1.val));
write_exp_elt_opcode (OP_LONG); }
;
exp : NAME_OR_INT
{ YYSTYPE val;
parse_number ($1.stoken.ptr, $1.stoken.length, 0, &val);
write_exp_elt_opcode (OP_LONG);
write_exp_elt_type (val.typed_val.type);
write_exp_elt_longcst ((LONGEST)val.typed_val.val);
write_exp_elt_opcode (OP_LONG);
}
;
exp : FLOAT
{ write_exp_elt_opcode (OP_DOUBLE);
write_exp_elt_type (builtin_type_double);
write_exp_elt_dblcst ($1);
write_exp_elt_opcode (OP_DOUBLE); }
;
exp : variable
;
exp : LAST
{ write_exp_elt_opcode (OP_LAST);
write_exp_elt_longcst ((LONGEST) $1);
write_exp_elt_opcode (OP_LAST); }
;
exp : REGNAME
{ write_exp_elt_opcode (OP_REGISTER);
write_exp_elt_longcst ((LONGEST) $1);
write_exp_elt_opcode (OP_REGISTER); }
;
exp : VARIABLE
{ write_exp_elt_opcode (OP_INTERNALVAR);
write_exp_elt_intern ($1);
write_exp_elt_opcode (OP_INTERNALVAR); }
;
exp : SIZEOF '(' type ')' %prec UNARY
{ write_exp_elt_opcode (OP_LONG);
write_exp_elt_type (builtin_type_int);
write_exp_elt_longcst ((LONGEST) TYPE_LENGTH ($3));
write_exp_elt_opcode (OP_LONG); }
;
exp : STRING
{ write_exp_elt_opcode (OP_STRING);
write_exp_string ($1);
write_exp_elt_opcode (OP_STRING); }
;
/* C++. */
exp : THIS
{ write_exp_elt_opcode (OP_THIS);
write_exp_elt_opcode (OP_THIS); }
;
/* end of C++. */
block : BLOCKNAME
{
if ($1.sym != 0)
$$ = SYMBOL_BLOCK_VALUE ($1.sym);
else
{
struct symtab *tem =
lookup_symtab (copy_name ($1.stoken));
if (tem)
$$ = BLOCKVECTOR_BLOCK
(BLOCKVECTOR (tem), STATIC_BLOCK);
else
error ("No file or function \"%s\".",
copy_name ($1.stoken));
}
}
;
block : block COLONCOLON name
{ struct symbol *tem
= lookup_symbol (copy_name ($3), $1,
VAR_NAMESPACE, 0, NULL);
if (!tem || SYMBOL_CLASS (tem) != LOC_BLOCK)
error ("No function \"%s\" in specified context.",
copy_name ($3));
$$ = SYMBOL_BLOCK_VALUE (tem); }
;
variable: block COLONCOLON name
{ struct symbol *sym;
sym = lookup_symbol (copy_name ($3), $1,
VAR_NAMESPACE, 0, NULL);
if (sym == 0)
error ("No symbol \"%s\" in specified context.",
copy_name ($3));
write_exp_elt_opcode (OP_VAR_VALUE);
write_exp_elt_sym (sym);
write_exp_elt_opcode (OP_VAR_VALUE); }
;
qualified_name: typebase COLONCOLON name
{
struct type *type = $1;
if (TYPE_CODE (type) != TYPE_CODE_STRUCT
&& TYPE_CODE (type) != TYPE_CODE_UNION)
error ("`%s' is not defined as an aggregate type.",
TYPE_NAME (type));
write_exp_elt_opcode (OP_SCOPE);
write_exp_elt_type (type);
write_exp_string ($3);
write_exp_elt_opcode (OP_SCOPE);
}
| typebase COLONCOLON '~' name
{
struct type *type = $1;
struct stoken tmp_token;
if (TYPE_CODE (type) != TYPE_CODE_STRUCT
&& TYPE_CODE (type) != TYPE_CODE_UNION)
error ("`%s' is not defined as an aggregate type.",
TYPE_NAME (type));
if (strcmp (type_name_no_tag (type), $4.ptr))
error ("invalid destructor `%s::~%s'",
type_name_no_tag (type), $4.ptr);
tmp_token.ptr = (char*) alloca ($4.length + 2);
tmp_token.length = $4.length + 1;
tmp_token.ptr[0] = '~';
memcpy (tmp_token.ptr+1, $4.ptr, $4.length);
tmp_token.ptr[tmp_token.length] = 0;
write_exp_elt_opcode (OP_SCOPE);
write_exp_elt_type (type);
write_exp_string (tmp_token);
write_exp_elt_opcode (OP_SCOPE);
}
;
variable: qualified_name
| COLONCOLON name
{
char *name = copy_name ($2);
struct symbol *sym;
struct minimal_symbol *msymbol;
sym =
lookup_symbol (name, 0, VAR_NAMESPACE, 0, NULL);
if (sym)
{
write_exp_elt_opcode (OP_VAR_VALUE);
write_exp_elt_sym (sym);
write_exp_elt_opcode (OP_VAR_VALUE);
break;
}
msymbol = lookup_minimal_symbol (name,
(struct objfile *) NULL);
if (msymbol != NULL)
{
write_exp_elt_opcode (OP_LONG);
write_exp_elt_type (builtin_type_int);
write_exp_elt_longcst ((LONGEST) msymbol -> address);
write_exp_elt_opcode (OP_LONG);
write_exp_elt_opcode (UNOP_MEMVAL);
if (msymbol -> type == mst_data ||
msymbol -> type == mst_bss)
write_exp_elt_type (builtin_type_int);
else if (msymbol -> type == mst_text)
write_exp_elt_type (lookup_function_type (builtin_type_int));
else
write_exp_elt_type (builtin_type_char);
write_exp_elt_opcode (UNOP_MEMVAL);
}
else
if (!have_full_symbols () && !have_partial_symbols ())
error ("No symbol table is loaded. Use the \"file\" command.");
else
error ("No symbol \"%s\" in current context.", name);
}
;
variable: name_not_typename
{ struct symbol *sym = $1.sym;
if (sym)
{
switch (SYMBOL_CLASS (sym))
{
case LOC_REGISTER:
case LOC_ARG:
case LOC_REF_ARG:
case LOC_REGPARM:
case LOC_LOCAL:
case LOC_LOCAL_ARG:
if (innermost_block == 0 ||
contained_in (block_found,
innermost_block))
innermost_block = block_found;
case LOC_UNDEF:
case LOC_CONST:
case LOC_STATIC:
case LOC_TYPEDEF:
case LOC_LABEL:
case LOC_BLOCK:
case LOC_CONST_BYTES:
/* In this case the expression can
be evaluated regardless of what
frame we are in, so there is no
need to check for the
innermost_block. These cases are
listed so that gcc -Wall will
report types that may not have
been considered. */
break;
}
write_exp_elt_opcode (OP_VAR_VALUE);
write_exp_elt_sym (sym);
write_exp_elt_opcode (OP_VAR_VALUE);
}
else if ($1.is_a_field_of_this)
{
/* C++: it hangs off of `this'. Must
not inadvertently convert from a method call
to data ref. */
if (innermost_block == 0 ||
contained_in (block_found, innermost_block))
innermost_block = block_found;
write_exp_elt_opcode (OP_THIS);
write_exp_elt_opcode (OP_THIS);
write_exp_elt_opcode (STRUCTOP_PTR);
write_exp_string ($1.stoken);
write_exp_elt_opcode (STRUCTOP_PTR);
}
else
{
struct minimal_symbol *msymbol;
register char *arg = copy_name ($1.stoken);
msymbol = lookup_minimal_symbol (arg,
(struct objfile *) NULL);
if (msymbol != NULL)
{
write_exp_elt_opcode (OP_LONG);
write_exp_elt_type (builtin_type_int);
write_exp_elt_longcst ((LONGEST) msymbol -> address);
write_exp_elt_opcode (OP_LONG);
write_exp_elt_opcode (UNOP_MEMVAL);
if (msymbol -> type == mst_data ||
msymbol -> type == mst_bss)
write_exp_elt_type (builtin_type_int);
else if (msymbol -> type == mst_text)
write_exp_elt_type (lookup_function_type (builtin_type_int));
else
write_exp_elt_type (builtin_type_char);
write_exp_elt_opcode (UNOP_MEMVAL);
}
else if (!have_full_symbols () && !have_partial_symbols ())
error ("No symbol table is loaded. Use the \"file\" command.");
else
error ("No symbol \"%s\" in current context.",
copy_name ($1.stoken));
}
}
;
ptype : typebase
| typebase abs_decl
{
/* This is where the interesting stuff happens. */
int done = 0;
int array_size;
struct type *follow_type = $1;
while (!done)
switch (pop_type ())
{
case tp_end:
done = 1;
break;
case tp_pointer:
follow_type = lookup_pointer_type (follow_type);
break;
case tp_reference:
follow_type = lookup_reference_type (follow_type);
break;
case tp_array:
array_size = pop_type_int ();
if (array_size != -1)
follow_type = create_array_type (follow_type,
array_size);
else
follow_type = lookup_pointer_type (follow_type);
break;
case tp_function:
follow_type = lookup_function_type (follow_type);
break;
}
$$ = follow_type;
}
;
abs_decl: '*'
{ push_type (tp_pointer); $$ = 0; }
| '*' abs_decl
{ push_type (tp_pointer); $$ = $2; }
| '&'
{ push_type (tp_reference); $$ = 0; }
| '&' abs_decl
{ push_type (tp_reference); $$ = $2; }
| direct_abs_decl
;
direct_abs_decl: '(' abs_decl ')'
{ $$ = $2; }
| direct_abs_decl array_mod
{
push_type_int ($2);
push_type (tp_array);
}
| array_mod
{
push_type_int ($1);
push_type (tp_array);
$$ = 0;
}
| direct_abs_decl func_mod
{ push_type (tp_function); }
| func_mod
{ push_type (tp_function); }
;
array_mod: '[' ']'
{ $$ = -1; }
| '[' INT ']'
{ $$ = $2.val; }
;
func_mod: '(' ')'
{ $$ = 0; }
| '(' nonempty_typelist ')'
{ free ((PTR)$2); $$ = 0; }
;
type : ptype
| typebase COLONCOLON '*'
{ $$ = lookup_member_type (builtin_type_int, $1); }
| type '(' typebase COLONCOLON '*' ')'
{ $$ = lookup_member_type ($1, $3); }
| type '(' typebase COLONCOLON '*' ')' '(' ')'
{ $$ = lookup_member_type
(lookup_function_type ($1), $3); }
| type '(' typebase COLONCOLON '*' ')' '(' nonempty_typelist ')'
{ $$ = lookup_member_type
(lookup_function_type ($1), $3);
free ((PTR)$8); }
;
typebase /* Implements (approximately): (type-qualifier)* type-specifier */
: TYPENAME
{ $$ = $1.type; }
| INT_KEYWORD
{ $$ = builtin_type_int; }
| LONG
{ $$ = builtin_type_long; }
| SHORT
{ $$ = builtin_type_short; }
| LONG INT_KEYWORD
{ $$ = builtin_type_long; }
| UNSIGNED LONG INT_KEYWORD
{ $$ = builtin_type_unsigned_long; }
| LONG LONG
{ $$ = builtin_type_long_long; }
| LONG LONG INT_KEYWORD
{ $$ = builtin_type_long_long; }
| UNSIGNED LONG LONG
{ $$ = builtin_type_unsigned_long_long; }
| UNSIGNED LONG LONG INT_KEYWORD
{ $$ = builtin_type_unsigned_long_long; }
| SHORT INT_KEYWORD
{ $$ = builtin_type_short; }
| UNSIGNED SHORT INT_KEYWORD
{ $$ = builtin_type_unsigned_short; }
| STRUCT name
{ $$ = lookup_struct (copy_name ($2),
expression_context_block); }
| CLASS name
{ $$ = lookup_struct (copy_name ($2),
expression_context_block); }
| UNION name
{ $$ = lookup_union (copy_name ($2),
expression_context_block); }
| ENUM name
{ $$ = lookup_enum (copy_name ($2),
expression_context_block); }
| UNSIGNED typename
{ $$ = lookup_unsigned_typename (TYPE_NAME($2.type)); }
| UNSIGNED
{ $$ = builtin_type_unsigned_int; }
| SIGNED_KEYWORD typename
{ $$ = lookup_signed_typename (TYPE_NAME($2.type)); }
| SIGNED_KEYWORD
{ $$ = builtin_type_int; }
| TEMPLATE name '<' type '>'
{ $$ = lookup_template_type(copy_name($2), $4,
expression_context_block);
}
/* "const" and "volatile" are curently ignored. */
| CONST_KEYWORD typebase { $$ = $2; }
| VOLATILE_KEYWORD typebase { $$ = $2; }
;
typename: TYPENAME
| INT_KEYWORD
{
$$.stoken.ptr = "int";
$$.stoken.length = 3;
$$.type = builtin_type_int;
}
| LONG
{
$$.stoken.ptr = "long";
$$.stoken.length = 4;
$$.type = builtin_type_long;
}
| SHORT
{
$$.stoken.ptr = "short";
$$.stoken.length = 5;
$$.type = builtin_type_short;
}
;
nonempty_typelist
: type
{ $$ = (struct type **) malloc (sizeof (struct type *) * 2);
$<ivec>$[0] = 1; /* Number of types in vector */
$$[1] = $1;
}
| nonempty_typelist ',' type
{ int len = sizeof (struct type *) * (++($<ivec>1[0]) + 1);
$$ = (struct type **) realloc ((char *) $1, len);
$$[$<ivec>$[0]] = $3;
}
;
name : NAME { $$ = $1.stoken; }
| BLOCKNAME { $$ = $1.stoken; }
| TYPENAME { $$ = $1.stoken; }
| NAME_OR_INT { $$ = $1.stoken; }
;
name_not_typename : NAME
| BLOCKNAME
/* These would be useful if name_not_typename was useful, but it is just
a fake for "variable", so these cause reduce/reduce conflicts because
the parser can't tell whether NAME_OR_INT is a name_not_typename (=variable,
=exp) or just an exp. If name_not_typename was ever used in an lvalue
context where only a name could occur, this might be useful.
| NAME_OR_INT
*/
;
%%
/* Take care of parsing a number (anything that starts with a digit).
Set yylval and return the token type; update lexptr.
LEN is the number of characters in it. */
/*** Needs some error checking for the float case ***/
static int
parse_number (p, len, parsed_float, putithere)
register char *p;
register int len;
int parsed_float;
YYSTYPE *putithere;
{
register LONGEST n = 0;
register LONGEST prevn = 0;
register int i;
register int c;
register int base = input_radix;
int unsigned_p = 0;
int long_p = 0;
LONGEST high_bit;
struct type *signed_type;
struct type *unsigned_type;
if (parsed_float)
{
/* It's a float since it contains a point or an exponent. */
putithere->dval = atof (p);
return FLOAT;
}
/* Handle base-switching prefixes 0x, 0t, 0d, 0 */
if (p[0] == '0')
switch (p[1])
{
case 'x':
case 'X':
if (len >= 3)
{
p += 2;
base = 16;
len -= 2;
}
break;
case 't':
case 'T':
case 'd':
case 'D':
if (len >= 3)
{
p += 2;
base = 10;
len -= 2;
}
break;
default:
base = 8;
break;
}
while (len-- > 0)
{
c = *p++;
if (c >= 'A' && c <= 'Z')
c += 'a' - 'A';
if (c != 'l' && c != 'u')
n *= base;
if (c >= '0' && c <= '9')
n += i = c - '0';
else
{
if (base > 10 && c >= 'a' && c <= 'f')
n += i = c - 'a' + 10;
else if (len == 0 && c == 'l')
long_p = 1;
else if (len == 0 && c == 'u')
unsigned_p = 1;
else
return ERROR; /* Char not a digit */
}
if (i >= base)
return ERROR; /* Invalid digit in this base */
/* Portably test for overflow (only works for nonzero values, so make
a second check for zero). */
if((prevn >= n) && n != 0)
unsigned_p=1; /* Try something unsigned */
/* If range checking enabled, portably test for unsigned overflow. */
if(RANGE_CHECK && n!=0)
{
if((unsigned_p && (unsigned)prevn >= (unsigned)n))
range_error("Overflow on numeric constant.");
}
prevn=n;
}
/* If the number is too big to be an int, or it's got an l suffix
then it's a long. Work out if this has to be a long by
shifting right and and seeing if anything remains, and the
target int size is different to the target long size. */
if ((TARGET_INT_BIT != TARGET_LONG_BIT && (n >> TARGET_INT_BIT)) || long_p)
{
high_bit = ((LONGEST)1) << (TARGET_LONG_BIT-1);
unsigned_type = builtin_type_unsigned_long;
signed_type = builtin_type_long;
}
else
{
high_bit = ((LONGEST)1) << (TARGET_INT_BIT-1);
unsigned_type = builtin_type_unsigned_int;
signed_type = builtin_type_int;
}
putithere->typed_val.val = n;
/* If the high bit of the worked out type is set then this number
has to be unsigned. */
if (unsigned_p || (n & high_bit))
{
putithere->typed_val.type = unsigned_type;
}
else
{
putithere->typed_val.type = signed_type;
}
return INT;
}
struct token
{
char *operator;
int token;
enum exp_opcode opcode;
};
const static struct token tokentab3[] =
{
{">>=", ASSIGN_MODIFY, BINOP_RSH},
{"<<=", ASSIGN_MODIFY, BINOP_LSH}
};
const static struct token tokentab2[] =
{
{"+=", ASSIGN_MODIFY, BINOP_ADD},
{"-=", ASSIGN_MODIFY, BINOP_SUB},
{"*=", ASSIGN_MODIFY, BINOP_MUL},
{"/=", ASSIGN_MODIFY, BINOP_DIV},
{"%=", ASSIGN_MODIFY, BINOP_REM},
{"|=", ASSIGN_MODIFY, BINOP_BITWISE_IOR},
{"&=", ASSIGN_MODIFY, BINOP_BITWISE_AND},
{"^=", ASSIGN_MODIFY, BINOP_BITWISE_XOR},
{"++", INCREMENT, BINOP_END},
{"--", DECREMENT, BINOP_END},
{"->", ARROW, BINOP_END},
{"&&", ANDAND, BINOP_END},
{"||", OROR, BINOP_END},
{"::", COLONCOLON, BINOP_END},
{"<<", LSH, BINOP_END},
{">>", RSH, BINOP_END},
{"==", EQUAL, BINOP_END},
{"!=", NOTEQUAL, BINOP_END},
{"<=", LEQ, BINOP_END},
{">=", GEQ, BINOP_END}
};
/* Read one token, getting characters through lexptr. */
int
yylex ()
{
int c;
int namelen;
unsigned int i;
char *tokstart;
char *tokptr;
int tempbufindex;
static char *tempbuf;
static int tempbufsize;
retry:
tokstart = lexptr;
/* See if it is a special token of length 3. */
for (i = 0; i < sizeof tokentab3 / sizeof tokentab3[0]; i++)
if (!strncmp (tokstart, tokentab3[i].operator, 3))
{
lexptr += 3;
yylval.opcode = tokentab3[i].opcode;
return tokentab3[i].token;
}
/* See if it is a special token of length 2. */
for (i = 0; i < sizeof tokentab2 / sizeof tokentab2[0]; i++)
if (!strncmp (tokstart, tokentab2[i].operator, 2))
{
lexptr += 2;
yylval.opcode = tokentab2[i].opcode;
return tokentab2[i].token;
}
switch (c = *tokstart)
{
case 0:
return 0;
case ' ':
case '\t':
case '\n':
lexptr++;
goto retry;
case '\'':
/* We either have a character constant ('0' or '\177' for example)
or we have a quoted symbol reference ('foo(int,int)' in C++
for example). */
lexptr++;
c = *lexptr++;
if (c == '\\')
c = parse_escape (&lexptr);
yylval.typed_val.val = c;
yylval.typed_val.type = builtin_type_char;
c = *lexptr++;
if (c != '\'')
{
namelen = skip_quoted (tokstart) - tokstart;
if (namelen > 2)
{
lexptr = tokstart + namelen;
namelen -= 2;
tokstart++;
goto tryname;
}
error ("Invalid character constant.");
}
return INT;
case '(':
paren_depth++;
lexptr++;
return c;
case ')':
if (paren_depth == 0)
return 0;
paren_depth--;
lexptr++;
return c;
case ',':
if (comma_terminates && paren_depth == 0)
return 0;
lexptr++;
return c;
case '.':
/* Might be a floating point number. */
if (lexptr[1] < '0' || lexptr[1] > '9')
goto symbol; /* Nope, must be a symbol. */
/* FALL THRU into number case. */
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
{
/* It's a number. */
int got_dot = 0, got_e = 0, toktype;
register char *p = tokstart;
int hex = input_radix > 10;
if (c == '0' && (p[1] == 'x' || p[1] == 'X'))
{
p += 2;
hex = 1;
}
else if (c == '0' && (p[1]=='t' || p[1]=='T' || p[1]=='d' || p[1]=='D'))
{
p += 2;
hex = 0;
}
for (;; ++p)
{
if (!hex && !got_e && (*p == 'e' || *p == 'E'))
got_dot = got_e = 1;
else if (!hex && !got_dot && *p == '.')
got_dot = 1;
else if (got_e && (p[-1] == 'e' || p[-1] == 'E')
&& (*p == '-' || *p == '+'))
/* This is the sign of the exponent, not the end of the
number. */
continue;
/* We will take any letters or digits. parse_number will
complain if past the radix, or if L or U are not final. */
else if ((*p < '0' || *p > '9')
&& ((*p < 'a' || *p > 'z')
&& (*p < 'A' || *p > 'Z')))
break;
}
toktype = parse_number (tokstart, p - tokstart, got_dot|got_e, &yylval);
if (toktype == ERROR)
{
char *err_copy = (char *) alloca (p - tokstart + 1);
memcpy (err_copy, tokstart, p - tokstart);
err_copy[p - tokstart] = 0;
error ("Invalid number \"%s\".", err_copy);
}
lexptr = p;
return toktype;
}
case '+':
case '-':
case '*':
case '/':
case '%':
case '|':
case '&':
case '^':
case '~':
case '!':
case '@':
case '<':
case '>':
case '[':
case ']':
case '?':
case ':':
case '=':
case '{':
case '}':
symbol:
lexptr++;
return c;
case '"':
/* Build the gdb internal form of the input string in tempbuf,
translating any standard C escape forms seen. Note that the
buffer is null byte terminated *only* for the convenience of
debugging gdb itself and printing the buffer contents when
the buffer contains no embedded nulls. Gdb does not depend
upon the buffer being null byte terminated, it uses the length
string instead. This allows gdb to handle C strings (as well
as strings in other languages) with embedded null bytes */
tokptr = ++tokstart;
tempbufindex = 0;
do {
/* Grow the static temp buffer if necessary, including allocating
the first one on demand. */
if (tempbufindex + 1 >= tempbufsize)
{
tempbuf = (char *) realloc (tempbuf, tempbufsize += 64);
}
switch (*tokptr)
{
case '\0':
case '"':
/* Do nothing, loop will terminate. */
break;
case '\\':
tokptr++;
c = parse_escape (&tokptr);
if (c == -1)
{
continue;
}
tempbuf[tempbufindex++] = c;
break;
default:
tempbuf[tempbufindex++] = *tokptr++;
break;
}
} while ((*tokptr != '"') && (*tokptr != '\0'));
if (*tokptr++ != '"')
{
error ("Unterminated string in expression.");
}
tempbuf[tempbufindex] = '\0'; /* See note above */
yylval.sval.ptr = tempbuf;
yylval.sval.length = tempbufindex;
lexptr = tokptr;
return (STRING);
}
if (!(c == '_' || c == '$'
|| (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')))
/* We must have come across a bad character (e.g. ';'). */
error ("Invalid character '%c' in expression.", c);
/* It's a name. See how long it is. */
namelen = 0;
for (c = tokstart[namelen];
(c == '_' || c == '$' || (c >= '0' && c <= '9')
|| (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'));
c = tokstart[++namelen])
;
/* The token "if" terminates the expression and is NOT
removed from the input stream. */
if (namelen == 2 && tokstart[0] == 'i' && tokstart[1] == 'f')
{
return 0;
}
lexptr += namelen;
/* Handle the tokens $digits; also $ (short for $0) and $$ (short for $$1)
and $$digits (equivalent to $<-digits> if you could type that).
Make token type LAST, and put the number (the digits) in yylval. */
tryname:
if (*tokstart == '$')
{
register int negate = 0;
c = 1;
/* Double dollar means negate the number and add -1 as well.
Thus $$ alone means -1. */
if (namelen >= 2 && tokstart[1] == '$')
{
negate = 1;
c = 2;
}
if (c == namelen)
{
/* Just dollars (one or two) */
yylval.lval = - negate;
return LAST;
}
/* Is the rest of the token digits? */
for (; c < namelen; c++)
if (!(tokstart[c] >= '0' && tokstart[c] <= '9'))
break;
if (c == namelen)
{
yylval.lval = atoi (tokstart + 1 + negate);
if (negate)
yylval.lval = - yylval.lval;
return LAST;
}
}
/* Handle tokens that refer to machine registers:
$ followed by a register name. */
if (*tokstart == '$') {
for (c = 0; c < NUM_REGS; c++)
if (namelen - 1 == strlen (reg_names[c])
&& !strncmp (tokstart + 1, reg_names[c], namelen - 1))
{
yylval.lval = c;
return REGNAME;
}
for (c = 0; c < num_std_regs; c++)
if (namelen - 1 == strlen (std_regs[c].name)
&& !strncmp (tokstart + 1, std_regs[c].name, namelen - 1))
{
yylval.lval = std_regs[c].regnum;
return REGNAME;
}
}
/* Catch specific keywords. Should be done with a data structure. */
switch (namelen)
{
case 8:
if (!strncmp (tokstart, "unsigned", 8))
return UNSIGNED;
if (current_language->la_language == language_cplus
&& !strncmp (tokstart, "template", 8))
return TEMPLATE;
if (!strncmp (tokstart, "volatile", 8))
return VOLATILE_KEYWORD;
break;
case 6:
if (!strncmp (tokstart, "struct", 6))
return STRUCT;
if (!strncmp (tokstart, "signed", 6))
return SIGNED_KEYWORD;
if (!strncmp (tokstart, "sizeof", 6))
return SIZEOF;
break;
case 5:
if (current_language->la_language == language_cplus
&& !strncmp (tokstart, "class", 5))
return CLASS;
if (!strncmp (tokstart, "union", 5))
return UNION;
if (!strncmp (tokstart, "short", 5))
return SHORT;
if (!strncmp (tokstart, "const", 5))
return CONST_KEYWORD;
break;
case 4:
if (!strncmp (tokstart, "enum", 4))
return ENUM;
if (!strncmp (tokstart, "long", 4))
return LONG;
if (current_language->la_language == language_cplus
&& !strncmp (tokstart, "this", 4))
{
static const char this_name[] =
{ CPLUS_MARKER, 't', 'h', 'i', 's', '\0' };
if (lookup_symbol (this_name, expression_context_block,
VAR_NAMESPACE, 0, NULL))
return THIS;
}
break;
case 3:
if (!strncmp (tokstart, "int", 3))
return INT_KEYWORD;
break;
default:
break;
}
yylval.sval.ptr = tokstart;
yylval.sval.length = namelen;
/* Any other names starting in $ are debugger internal variables. */
if (*tokstart == '$')
{
yylval.ivar = lookup_internalvar (copy_name (yylval.sval) + 1);
return VARIABLE;
}
/* Use token-type BLOCKNAME for symbols that happen to be defined as
functions or symtabs. If this is not so, then ...
Use token-type TYPENAME for symbols that happen to be defined
currently as names of types; NAME for other symbols.
The caller is not constrained to care about the distinction. */
{
char *tmp = copy_name (yylval.sval);
struct symbol *sym;
int is_a_field_of_this = 0;
int hextype;
sym = lookup_symbol (tmp, expression_context_block,
VAR_NAMESPACE,
current_language->la_language == language_cplus
? &is_a_field_of_this : NULL,
NULL);
if ((sym && SYMBOL_CLASS (sym) == LOC_BLOCK) ||
lookup_partial_symtab (tmp))
{
yylval.ssym.sym = sym;
yylval.ssym.is_a_field_of_this = is_a_field_of_this;
return BLOCKNAME;
}
if (sym && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
{
yylval.tsym.type = SYMBOL_TYPE (sym);
return TYPENAME;
}
if ((yylval.tsym.type = lookup_primitive_typename (tmp)) != 0)
return TYPENAME;
/* Input names that aren't symbols but ARE valid hex numbers,
when the input radix permits them, can be names or numbers
depending on the parse. Note we support radixes > 16 here. */
if (!sym &&
((tokstart[0] >= 'a' && tokstart[0] < 'a' + input_radix - 10) ||
(tokstart[0] >= 'A' && tokstart[0] < 'A' + input_radix - 10)))
{
YYSTYPE newlval; /* Its value is ignored. */
hextype = parse_number (tokstart, namelen, 0, &newlval);
if (hextype == INT)
{
yylval.ssym.sym = sym;
yylval.ssym.is_a_field_of_this = is_a_field_of_this;
return NAME_OR_INT;
}
}
/* Any other kind of symbol */
yylval.ssym.sym = sym;
yylval.ssym.is_a_field_of_this = is_a_field_of_this;
return NAME;
}
}
void
yyerror (msg)
char *msg;
{
error (msg ? msg : "Invalid syntax in expression.");
}
/* Print the character C on STREAM as part of the contents of a literal
string whose delimiter is QUOTER. Note that that format for printing
characters and strings is language specific. */
static void
emit_char (c, stream, quoter)
register int c;
FILE *stream;
int quoter;
{
c &= 0xFF; /* Avoid sign bit follies */
if (PRINT_LITERAL_FORM (c))
{
if (c == '\\' || c == quoter)
{
fputs_filtered ("\\", stream);
}
fprintf_filtered (stream, "%c", c);
}
else
{
switch (c)
{
case '\n':
fputs_filtered ("\\n", stream);
break;
case '\b':
fputs_filtered ("\\b", stream);
break;
case '\t':
fputs_filtered ("\\t", stream);
break;
case '\f':
fputs_filtered ("\\f", stream);
break;
case '\r':
fputs_filtered ("\\r", stream);
break;
case '\033':
fputs_filtered ("\\e", stream);
break;
case '\007':
fputs_filtered ("\\a", stream);
break;
default:
fprintf_filtered (stream, "\\%.3o", (unsigned int) c);
break;
}
}
}
static void
c_printchar (c, stream)
int c;
FILE *stream;
{
fputs_filtered ("'", stream);
emit_char (c, stream, '\'');
fputs_filtered ("'", stream);
}
/* Print the character string STRING, printing at most LENGTH characters.
Printing stops early if the number hits print_max; repeat counts
are printed as appropriate. Print ellipses at the end if we
had to stop before printing LENGTH characters, or if FORCE_ELLIPSES. */
static void
c_printstr (stream, string, length, force_ellipses)
FILE *stream;
char *string;
unsigned int length;
int force_ellipses;
{
register unsigned int i;
unsigned int things_printed = 0;
int in_quotes = 0;
int need_comma = 0;
extern int inspect_it;
extern int repeat_count_threshold;
extern int print_max;
if (length == 0)
{
fputs_filtered ("\"\"", stdout);
return;
}
for (i = 0; i < length && things_printed < print_max; ++i)
{
/* Position of the character we are examining
to see whether it is repeated. */
unsigned int rep1;
/* Number of repetitions we have detected so far. */
unsigned int reps;
QUIT;
if (need_comma)
{
fputs_filtered (", ", stream);
need_comma = 0;
}
rep1 = i + 1;
reps = 1;
while (rep1 < length && string[rep1] == string[i])
{
++rep1;
++reps;
}
if (reps > repeat_count_threshold)
{
if (in_quotes)
{
if (inspect_it)
fputs_filtered ("\\\", ", stream);
else
fputs_filtered ("\", ", stream);
in_quotes = 0;
}
c_printchar (string[i], stream);
fprintf_filtered (stream, " <repeats %u times>", reps);
i = rep1 - 1;
things_printed += repeat_count_threshold;
need_comma = 1;
}
else
{
if (!in_quotes)
{
if (inspect_it)
fputs_filtered ("\\\"", stream);
else
fputs_filtered ("\"", stream);
in_quotes = 1;
}
emit_char (string[i], stream, '"');
++things_printed;
}
}
/* Terminate the quotes if necessary. */
if (in_quotes)
{
if (inspect_it)
fputs_filtered ("\\\"", stream);
else
fputs_filtered ("\"", stream);
}
if (force_ellipses || i < length)
fputs_filtered ("...", stream);
}
/* Create a fundamental C type using default reasonable for the current
target machine.
Some object/debugging file formats (DWARF version 1, COFF, etc) do not
define fundamental types such as "int" or "double". Others (stabs or
DWARF version 2, etc) do define fundamental types. For the formats which
don't provide fundamental types, gdb can create such types using this
function.
FIXME: Some compilers distinguish explicitly signed integral types
(signed short, signed int, signed long) from "regular" integral types
(short, int, long) in the debugging information. There is some dis-
agreement as to how useful this feature is. In particular, gcc does
not support this. Also, only some debugging formats allow the
distinction to be passed on to a debugger. For now, we always just
use "short", "int", or "long" as the type name, for both the implicit
and explicitly signed types. This also makes life easier for the
gdb test suite since we don't have to account for the differences
in output depending upon what the compiler and debugging format
support. We will probably have to re-examine the issue when gdb
starts taking it's fundamental type information directly from the
debugging information supplied by the compiler. fnf@cygnus.com */
static struct type *
c_create_fundamental_type (objfile, typeid)
struct objfile *objfile;
int typeid;
{
register struct type *type = NULL;
register int nbytes;
switch (typeid)
{
default:
/* FIXME: For now, if we are asked to produce a type not in this
language, create the equivalent of a C integer type with the
name "<?type?>". When all the dust settles from the type
reconstruction work, this should probably become an error. */
type = init_type (TYPE_CODE_INT,
TARGET_INT_BIT / TARGET_CHAR_BIT,
0, "<?type?>", objfile);
warning ("internal error: no C/C++ fundamental type %d", typeid);
break;
case FT_VOID:
type = init_type (TYPE_CODE_VOID,
TARGET_CHAR_BIT / TARGET_CHAR_BIT,
0, "void", objfile);
break;
case FT_CHAR:
type = init_type (TYPE_CODE_INT,
TARGET_CHAR_BIT / TARGET_CHAR_BIT,
0, "char", objfile);
break;
case FT_SIGNED_CHAR:
type = init_type (TYPE_CODE_INT,
TARGET_CHAR_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_SIGNED, "signed char", objfile);
break;
case FT_UNSIGNED_CHAR:
type = init_type (TYPE_CODE_INT,
TARGET_CHAR_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED, "unsigned char", objfile);
break;
case FT_SHORT:
type = init_type (TYPE_CODE_INT,
TARGET_SHORT_BIT / TARGET_CHAR_BIT,
0, "short", objfile);
break;
case FT_SIGNED_SHORT:
type = init_type (TYPE_CODE_INT,
TARGET_SHORT_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_SIGNED, "short", objfile); /* FIXME-fnf */
break;
case FT_UNSIGNED_SHORT:
type = init_type (TYPE_CODE_INT,
TARGET_SHORT_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED, "unsigned short", objfile);
break;
case FT_INTEGER:
type = init_type (TYPE_CODE_INT,
TARGET_INT_BIT / TARGET_CHAR_BIT,
0, "int", objfile);
break;
case FT_SIGNED_INTEGER:
type = init_type (TYPE_CODE_INT,
TARGET_INT_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_SIGNED, "int", objfile); /* FIXME -fnf */
break;
case FT_UNSIGNED_INTEGER:
type = init_type (TYPE_CODE_INT,
TARGET_INT_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED, "unsigned int", objfile);
break;
case FT_LONG:
type = init_type (TYPE_CODE_INT,
TARGET_LONG_BIT / TARGET_CHAR_BIT,
0, "long", objfile);
break;
case FT_SIGNED_LONG:
type = init_type (TYPE_CODE_INT,
TARGET_LONG_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_SIGNED, "long", objfile); /* FIXME -fnf */
break;
case FT_UNSIGNED_LONG:
type = init_type (TYPE_CODE_INT,
TARGET_LONG_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED, "unsigned long", objfile);
break;
case FT_LONG_LONG:
type = init_type (TYPE_CODE_INT,
TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
0, "long long", objfile);
break;
case FT_SIGNED_LONG_LONG:
type = init_type (TYPE_CODE_INT,
TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_SIGNED, "signed long long", objfile);
break;
case FT_UNSIGNED_LONG_LONG:
type = init_type (TYPE_CODE_INT,
TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED, "unsigned long long", objfile);
break;
case FT_FLOAT:
type = init_type (TYPE_CODE_FLT,
TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
0, "float", objfile);
break;
case FT_DBL_PREC_FLOAT:
type = init_type (TYPE_CODE_FLT,
TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
0, "double", objfile);
break;
case FT_EXT_PREC_FLOAT:
type = init_type (TYPE_CODE_FLT,
TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
0, "long double", objfile);
break;
}
return (type);
}
/* Table mapping opcodes into strings for printing operators
and precedences of the operators. */
const static struct op_print c_op_print_tab[] =
{
{",", BINOP_COMMA, PREC_COMMA, 0},
{"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
{"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
{"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
{"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0},
{"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0},
{"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0},
{"==", BINOP_EQUAL, PREC_EQUAL, 0},
{"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0},
{"<=", BINOP_LEQ, PREC_ORDER, 0},
{">=", BINOP_GEQ, PREC_ORDER, 0},
{">", BINOP_GTR, PREC_ORDER, 0},
{"<", BINOP_LESS, PREC_ORDER, 0},
{">>", BINOP_RSH, PREC_SHIFT, 0},
{"<<", BINOP_LSH, PREC_SHIFT, 0},
{"+", BINOP_ADD, PREC_ADD, 0},
{"-", BINOP_SUB, PREC_ADD, 0},
{"*", BINOP_MUL, PREC_MUL, 0},
{"/", BINOP_DIV, PREC_MUL, 0},
{"%", BINOP_REM, PREC_MUL, 0},
{"@", BINOP_REPEAT, PREC_REPEAT, 0},
{"-", UNOP_NEG, PREC_PREFIX, 0},
{"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
{"~", UNOP_COMPLEMENT, PREC_PREFIX, 0},
{"*", UNOP_IND, PREC_PREFIX, 0},
{"&", UNOP_ADDR, PREC_PREFIX, 0},
{"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0},
{"++", UNOP_PREINCREMENT, PREC_PREFIX, 0},
{"--", UNOP_PREDECREMENT, PREC_PREFIX, 0},
/* C++ */
{"::", BINOP_SCOPE, PREC_PREFIX, 0},
{NULL, 0, 0, 0}
};
/* These variables point to the objects
representing the predefined C data types. */
struct type *builtin_type_void;
struct type *builtin_type_char;
struct type *builtin_type_short;
struct type *builtin_type_int;
struct type *builtin_type_long;
struct type *builtin_type_long_long;
struct type *builtin_type_signed_char;
struct type *builtin_type_unsigned_char;
struct type *builtin_type_unsigned_short;
struct type *builtin_type_unsigned_int;
struct type *builtin_type_unsigned_long;
struct type *builtin_type_unsigned_long_long;
struct type *builtin_type_float;
struct type *builtin_type_double;
struct type *builtin_type_long_double;
struct type *builtin_type_complex;
struct type *builtin_type_double_complex;
struct type ** const (c_builtin_types[]) =
{
&builtin_type_int,
&builtin_type_long,
&builtin_type_short,
&builtin_type_char,
&builtin_type_float,
&builtin_type_double,
&builtin_type_void,
&builtin_type_long_long,
&builtin_type_signed_char,
&builtin_type_unsigned_char,
&builtin_type_unsigned_short,
&builtin_type_unsigned_int,
&builtin_type_unsigned_long,
&builtin_type_unsigned_long_long,
&builtin_type_long_double,
&builtin_type_complex,
&builtin_type_double_complex,
0
};
const struct language_defn c_language_defn = {
"c", /* Language name */
language_c,
c_builtin_types,
range_check_off,
type_check_off,
c_parse,
c_error,
c_printchar, /* Print a character constant */
c_printstr, /* Function to print string constant */
c_create_fundamental_type, /* Create fundamental type in this language */
&BUILTIN_TYPE_LONGEST, /* longest signed integral type */
&BUILTIN_TYPE_UNSIGNED_LONGEST,/* longest unsigned integral type */
&builtin_type_double, /* longest floating point type */ /*FIXME*/
{"", "", "", ""}, /* Binary format info */
{"0%o", "0", "o", ""}, /* Octal format info */
{"%d", "", "d", ""}, /* Decimal format info */
{"0x%x", "0x", "x", ""}, /* Hex format info */
c_op_print_tab, /* expression operators for printing */
LANG_MAGIC
};
const struct language_defn cplus_language_defn = {
"c++", /* Language name */
language_cplus,
c_builtin_types,
range_check_off,
type_check_off,
c_parse,
c_error,
c_printchar, /* Print a character constant */
c_printstr, /* Function to print string constant */
c_create_fundamental_type, /* Create fundamental type in this language */
&BUILTIN_TYPE_LONGEST, /* longest signed integral type */
&BUILTIN_TYPE_UNSIGNED_LONGEST,/* longest unsigned integral type */
&builtin_type_double, /* longest floating point type */ /*FIXME*/
{"", "", "", ""}, /* Binary format info */
{"0%o", "0", "o", ""}, /* Octal format info */
{"%d", "", "d", ""}, /* Decimal format info */
{"0x%x", "0x", "x", ""}, /* Hex format info */
c_op_print_tab, /* expression operators for printing */
LANG_MAGIC
};
void
_initialize_c_exp ()
{
builtin_type_void =
init_type (TYPE_CODE_VOID, 1,
0,
"void", (struct objfile *) NULL);
builtin_type_char =
init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
0,
"char", (struct objfile *) NULL);
builtin_type_signed_char =
init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_SIGNED,
"signed char", (struct objfile *) NULL);
builtin_type_unsigned_char =
init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED,
"unsigned char", (struct objfile *) NULL);
builtin_type_short =
init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT,
0,
"short", (struct objfile *) NULL);
builtin_type_unsigned_short =
init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED,
"unsigned short", (struct objfile *) NULL);
builtin_type_int =
init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT,
0,
"int", (struct objfile *) NULL);
builtin_type_unsigned_int =
init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED,
"unsigned int", (struct objfile *) NULL);
builtin_type_long =
init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT,
0,
"long", (struct objfile *) NULL);
builtin_type_unsigned_long =
init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED,
"unsigned long", (struct objfile *) NULL);
builtin_type_long_long =
init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
0,
"long long", (struct objfile *) NULL);
builtin_type_unsigned_long_long =
init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED,
"unsigned long long", (struct objfile *) NULL);
builtin_type_float =
init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
0,
"float", (struct objfile *) NULL);
builtin_type_double =
init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
0,
"double", (struct objfile *) NULL);
builtin_type_long_double =
init_type (TYPE_CODE_FLT, TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
0,
"long double", (struct objfile *) NULL);
builtin_type_complex =
init_type (TYPE_CODE_FLT, TARGET_COMPLEX_BIT / TARGET_CHAR_BIT,
0,
"complex", (struct objfile *) NULL);
builtin_type_double_complex =
init_type (TYPE_CODE_FLT, TARGET_DOUBLE_COMPLEX_BIT / TARGET_CHAR_BIT,
0,
"double complex", (struct objfile *) NULL);
add_language (&c_language_defn);
add_language (&cplus_language_defn);
}