+
/* YACC parser for Fortran expressions, for GDB.
- Copyright (C) 1986, 1989-1991, 1993-1996, 2000-2012 Free Software
- Foundation, Inc.
+ Copyright (C) 1986-2020 Free Software Foundation, Inc.
Contributed by Motorola. Adapted from the C parser by Farooq Butt
(fmbutt@engage.sps.mot.com).
%{
#include "defs.h"
-#include "gdb_string.h"
#include "expression.h"
#include "value.h"
#include "parser-defs.h"
#include "objfiles.h" /* For have_full_symbols and have_partial_symbols */
#include "block.h"
#include <ctype.h>
+#include <algorithm>
+#include "type-stack.h"
+
+#define parse_type(ps) builtin_type (ps->gdbarch ())
+#define parse_f_type(ps) builtin_f_type (ps->gdbarch ())
+
+/* Remap normal yacc parser interface names (yyparse, yylex, yyerror,
+ etc). */
+#define GDB_YY_REMAP_PREFIX f_
+#include "yy-remap.h"
+
+/* The state of the parser, used internally when we are parsing the
+ expression. */
+
+static struct parser_state *pstate = NULL;
-#define parse_type builtin_type (parse_gdbarch)
-#define parse_f_type builtin_f_type (parse_gdbarch)
-
-/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
- as well as gratuitiously global symbol names, so we can have multiple
- yacc generated parsers in gdb. Note that these are only the variables
- produced by yacc. If other parser generators (bison, byacc, etc) produce
- additional global names that conflict at link time, then those parser
- generators need to be fixed instead of adding those names to this list. */
-
-#define yymaxdepth f_maxdepth
-#define yyparse f_parse
-#define yylex f_lex
-#define yyerror f_error
-#define yylval f_lval
-#define yychar f_char
-#define yydebug f_debug
-#define yypact f_pact
-#define yyr1 f_r1
-#define yyr2 f_r2
-#define yydef f_def
-#define yychk f_chk
-#define yypgo f_pgo
-#define yyact f_act
-#define yyexca f_exca
-#define yyerrflag f_errflag
-#define yynerrs f_nerrs
-#define yyps f_ps
-#define yypv f_pv
-#define yys f_s
-#define yy_yys f_yys
-#define yystate f_state
-#define yytmp f_tmp
-#define yyv f_v
-#define yy_yyv f_yyv
-#define yyval f_val
-#define yylloc f_lloc
-#define yyreds f_reds /* With YYDEBUG defined */
-#define yytoks f_toks /* With YYDEBUG defined */
-#define yyname f_name /* With YYDEBUG defined */
-#define yyrule f_rule /* With YYDEBUG defined */
-#define yylhs f_yylhs
-#define yylen f_yylen
-#define yydefred f_yydefred
-#define yydgoto f_yydgoto
-#define yysindex f_yysindex
-#define yyrindex f_yyrindex
-#define yygindex f_yygindex
-#define yytable f_yytable
-#define yycheck f_yycheck
-#define yyss f_yyss
-#define yysslim f_yysslim
-#define yyssp f_yyssp
-#define yystacksize f_yystacksize
-#define yyvs f_yyvs
-#define yyvsp f_yyvsp
-
-#ifndef YYDEBUG
-#define YYDEBUG 1 /* Default to yydebug support */
-#endif
-
-#define YYFPRINTF parser_fprintf
+/* Depth of parentheses. */
+static int paren_depth;
+
+/* The current type stack. */
+static struct type_stack *type_stack;
int yyparse (void);
static int yylex (void);
-void yyerror (char *);
+static void yyerror (const char *);
static void growbuf_by_size (int);
static int match_string_literal (void);
+static void push_kind_type (LONGEST val, struct type *type);
+
+static struct type *convert_to_kind_type (struct type *basetype, int kind);
+
%}
/* Although the yacc "value" of an expression is not used,
LONGEST val;
struct type *type;
} typed_val;
- DOUBLEST dval;
+ struct {
+ gdb_byte val[16];
+ struct type *type;
+ } typed_val_float;
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;
%{
/* YYSTYPE gets defined by %union */
-static int parse_number (char *, int, int, YYSTYPE *);
+static int parse_number (struct parser_state *, const char *, int,
+ int, YYSTYPE *);
%}
%type <voidval> exp type_exp start variable
%type <tval> ptype
%token <typed_val> INT
-%token <dval> FLOAT
+%token <typed_val_float> FLOAT
/* Both NAME and TYPENAME tokens represent symbols in the input,
and both convey their data as strings.
%token <ssym> NAME_OR_INT
-%token SIZEOF
+%token SIZEOF KIND
%token ERROR
/* Special type cases, put in to allow the parser to distinguish different
%token INT_KEYWORD INT_S2_KEYWORD LOGICAL_S1_KEYWORD LOGICAL_S2_KEYWORD
%token LOGICAL_S8_KEYWORD
%token LOGICAL_KEYWORD REAL_KEYWORD REAL_S8_KEYWORD REAL_S16_KEYWORD
+%token COMPLEX_KEYWORD
%token COMPLEX_S8_KEYWORD COMPLEX_S16_KEYWORD COMPLEX_S32_KEYWORD
%token BOOL_AND BOOL_OR BOOL_NOT
+%token SINGLE DOUBLE PRECISION
%token <lval> CHARACTER
-%token <voidval> VARIABLE
+%token <voidval> DOLLAR_VARIABLE
%token <opcode> ASSIGN_MODIFY
+%token <opcode> UNOP_INTRINSIC BINOP_INTRINSIC
%left ','
%left ABOVE_COMMA
;
type_exp: type
- { write_exp_elt_opcode(OP_TYPE);
- write_exp_elt_type($1);
- write_exp_elt_opcode(OP_TYPE); }
+ { write_exp_elt_opcode (pstate, OP_TYPE);
+ write_exp_elt_type (pstate, $1);
+ write_exp_elt_opcode (pstate, OP_TYPE); }
;
exp : '(' exp ')'
/* Expressions, not including the comma operator. */
exp : '*' exp %prec UNARY
- { write_exp_elt_opcode (UNOP_IND); }
+ { write_exp_elt_opcode (pstate, UNOP_IND); }
;
exp : '&' exp %prec UNARY
- { write_exp_elt_opcode (UNOP_ADDR); }
+ { write_exp_elt_opcode (pstate, UNOP_ADDR); }
;
exp : '-' exp %prec UNARY
- { write_exp_elt_opcode (UNOP_NEG); }
+ { write_exp_elt_opcode (pstate, UNOP_NEG); }
;
exp : BOOL_NOT exp %prec UNARY
- { write_exp_elt_opcode (UNOP_LOGICAL_NOT); }
+ { write_exp_elt_opcode (pstate, UNOP_LOGICAL_NOT); }
;
exp : '~' exp %prec UNARY
- { write_exp_elt_opcode (UNOP_COMPLEMENT); }
+ { write_exp_elt_opcode (pstate, UNOP_COMPLEMENT); }
;
exp : SIZEOF exp %prec UNARY
- { write_exp_elt_opcode (UNOP_SIZEOF); }
+ { write_exp_elt_opcode (pstate, UNOP_SIZEOF); }
+ ;
+
+exp : KIND '(' exp ')' %prec UNARY
+ { write_exp_elt_opcode (pstate, UNOP_FORTRAN_KIND); }
;
/* No more explicit array operators, we treat everything in F77 as
later in eval.c. */
exp : exp '('
- { start_arglist (); }
+ { pstate->start_arglist (); }
arglist ')'
- { write_exp_elt_opcode (OP_F77_UNDETERMINED_ARGLIST);
- write_exp_elt_longcst ((LONGEST) end_arglist ());
- write_exp_elt_opcode (OP_F77_UNDETERMINED_ARGLIST); }
+ { write_exp_elt_opcode (pstate,
+ OP_F77_UNDETERMINED_ARGLIST);
+ write_exp_elt_longcst (pstate,
+ pstate->end_arglist ());
+ write_exp_elt_opcode (pstate,
+ OP_F77_UNDETERMINED_ARGLIST); }
+ ;
+
+exp : UNOP_INTRINSIC '(' exp ')'
+ { write_exp_elt_opcode (pstate, $1); }
+ ;
+
+exp : BINOP_INTRINSIC '(' exp ',' exp ')'
+ { write_exp_elt_opcode (pstate, $1); }
;
arglist :
;
arglist : exp
- { arglist_len = 1; }
+ { pstate->arglist_len = 1; }
;
arglist : subrange
- { arglist_len = 1; }
+ { pstate->arglist_len = 1; }
;
arglist : arglist ',' exp %prec ABOVE_COMMA
- { arglist_len++; }
+ { pstate->arglist_len++; }
;
/* There are four sorts of subrange types in F90. */
subrange: exp ':' exp %prec ABOVE_COMMA
- { write_exp_elt_opcode (OP_F90_RANGE);
- write_exp_elt_longcst (NONE_BOUND_DEFAULT);
- write_exp_elt_opcode (OP_F90_RANGE); }
+ { write_exp_elt_opcode (pstate, OP_RANGE);
+ write_exp_elt_longcst (pstate, NONE_BOUND_DEFAULT);
+ write_exp_elt_opcode (pstate, OP_RANGE); }
;
subrange: exp ':' %prec ABOVE_COMMA
- { write_exp_elt_opcode (OP_F90_RANGE);
- write_exp_elt_longcst (HIGH_BOUND_DEFAULT);
- write_exp_elt_opcode (OP_F90_RANGE); }
+ { write_exp_elt_opcode (pstate, OP_RANGE);
+ write_exp_elt_longcst (pstate, HIGH_BOUND_DEFAULT);
+ write_exp_elt_opcode (pstate, OP_RANGE); }
;
subrange: ':' exp %prec ABOVE_COMMA
- { write_exp_elt_opcode (OP_F90_RANGE);
- write_exp_elt_longcst (LOW_BOUND_DEFAULT);
- write_exp_elt_opcode (OP_F90_RANGE); }
+ { write_exp_elt_opcode (pstate, OP_RANGE);
+ write_exp_elt_longcst (pstate, LOW_BOUND_DEFAULT);
+ write_exp_elt_opcode (pstate, OP_RANGE); }
;
subrange: ':' %prec ABOVE_COMMA
- { write_exp_elt_opcode (OP_F90_RANGE);
- write_exp_elt_longcst (BOTH_BOUND_DEFAULT);
- write_exp_elt_opcode (OP_F90_RANGE); }
+ { write_exp_elt_opcode (pstate, OP_RANGE);
+ write_exp_elt_longcst (pstate, BOTH_BOUND_DEFAULT);
+ write_exp_elt_opcode (pstate, OP_RANGE); }
;
complexnum: exp ',' exp
;
exp : '(' complexnum ')'
- { write_exp_elt_opcode(OP_COMPLEX);
- write_exp_elt_type (parse_f_type->builtin_complex_s16);
- write_exp_elt_opcode(OP_COMPLEX); }
+ { write_exp_elt_opcode (pstate, OP_COMPLEX);
+ write_exp_elt_type (pstate,
+ parse_f_type (pstate)
+ ->builtin_complex_s16);
+ write_exp_elt_opcode (pstate, OP_COMPLEX); }
;
exp : '(' type ')' exp %prec UNARY
- { write_exp_elt_opcode (UNOP_CAST);
- write_exp_elt_type ($2);
- write_exp_elt_opcode (UNOP_CAST); }
+ { write_exp_elt_opcode (pstate, UNOP_CAST);
+ write_exp_elt_type (pstate, $2);
+ write_exp_elt_opcode (pstate, UNOP_CAST); }
;
exp : exp '%' name
- { write_exp_elt_opcode (STRUCTOP_STRUCT);
- write_exp_string ($3);
- write_exp_elt_opcode (STRUCTOP_STRUCT); }
+ { write_exp_elt_opcode (pstate, STRUCTOP_STRUCT);
+ write_exp_string (pstate, $3);
+ write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); }
;
/* Binary operators in order of decreasing precedence. */
exp : exp '@' exp
- { write_exp_elt_opcode (BINOP_REPEAT); }
+ { write_exp_elt_opcode (pstate, BINOP_REPEAT); }
;
exp : exp STARSTAR exp
- { write_exp_elt_opcode (BINOP_EXP); }
+ { write_exp_elt_opcode (pstate, BINOP_EXP); }
;
exp : exp '*' exp
- { write_exp_elt_opcode (BINOP_MUL); }
+ { write_exp_elt_opcode (pstate, BINOP_MUL); }
;
exp : exp '/' exp
- { write_exp_elt_opcode (BINOP_DIV); }
+ { write_exp_elt_opcode (pstate, BINOP_DIV); }
;
exp : exp '+' exp
- { write_exp_elt_opcode (BINOP_ADD); }
+ { write_exp_elt_opcode (pstate, BINOP_ADD); }
;
exp : exp '-' exp
- { write_exp_elt_opcode (BINOP_SUB); }
+ { write_exp_elt_opcode (pstate, BINOP_SUB); }
;
exp : exp LSH exp
- { write_exp_elt_opcode (BINOP_LSH); }
+ { write_exp_elt_opcode (pstate, BINOP_LSH); }
;
exp : exp RSH exp
- { write_exp_elt_opcode (BINOP_RSH); }
+ { write_exp_elt_opcode (pstate, BINOP_RSH); }
;
exp : exp EQUAL exp
- { write_exp_elt_opcode (BINOP_EQUAL); }
+ { write_exp_elt_opcode (pstate, BINOP_EQUAL); }
;
exp : exp NOTEQUAL exp
- { write_exp_elt_opcode (BINOP_NOTEQUAL); }
+ { write_exp_elt_opcode (pstate, BINOP_NOTEQUAL); }
;
exp : exp LEQ exp
- { write_exp_elt_opcode (BINOP_LEQ); }
+ { write_exp_elt_opcode (pstate, BINOP_LEQ); }
;
exp : exp GEQ exp
- { write_exp_elt_opcode (BINOP_GEQ); }
+ { write_exp_elt_opcode (pstate, BINOP_GEQ); }
;
exp : exp LESSTHAN exp
- { write_exp_elt_opcode (BINOP_LESS); }
+ { write_exp_elt_opcode (pstate, BINOP_LESS); }
;
exp : exp GREATERTHAN exp
- { write_exp_elt_opcode (BINOP_GTR); }
+ { write_exp_elt_opcode (pstate, BINOP_GTR); }
;
exp : exp '&' exp
- { write_exp_elt_opcode (BINOP_BITWISE_AND); }
+ { write_exp_elt_opcode (pstate, BINOP_BITWISE_AND); }
;
exp : exp '^' exp
- { write_exp_elt_opcode (BINOP_BITWISE_XOR); }
+ { write_exp_elt_opcode (pstate, BINOP_BITWISE_XOR); }
;
exp : exp '|' exp
- { write_exp_elt_opcode (BINOP_BITWISE_IOR); }
+ { write_exp_elt_opcode (pstate, BINOP_BITWISE_IOR); }
;
exp : exp BOOL_AND exp
- { write_exp_elt_opcode (BINOP_LOGICAL_AND); }
+ { write_exp_elt_opcode (pstate, BINOP_LOGICAL_AND); }
;
exp : exp BOOL_OR exp
- { write_exp_elt_opcode (BINOP_LOGICAL_OR); }
+ { write_exp_elt_opcode (pstate, BINOP_LOGICAL_OR); }
;
exp : exp '=' exp
- { write_exp_elt_opcode (BINOP_ASSIGN); }
+ { write_exp_elt_opcode (pstate, 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); }
+ { write_exp_elt_opcode (pstate, BINOP_ASSIGN_MODIFY);
+ write_exp_elt_opcode (pstate, $2);
+ write_exp_elt_opcode (pstate, 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); }
+ { write_exp_elt_opcode (pstate, OP_LONG);
+ write_exp_elt_type (pstate, $1.type);
+ write_exp_elt_longcst (pstate, (LONGEST) ($1.val));
+ write_exp_elt_opcode (pstate, 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); }
+ parse_number (pstate, $1.stoken.ptr,
+ $1.stoken.length, 0, &val);
+ write_exp_elt_opcode (pstate, OP_LONG);
+ write_exp_elt_type (pstate, val.typed_val.type);
+ write_exp_elt_longcst (pstate,
+ (LONGEST)val.typed_val.val);
+ write_exp_elt_opcode (pstate, OP_LONG); }
;
exp : FLOAT
- { write_exp_elt_opcode (OP_DOUBLE);
- write_exp_elt_type (parse_f_type->builtin_real_s8);
- write_exp_elt_dblcst ($1);
- write_exp_elt_opcode (OP_DOUBLE); }
+ { write_exp_elt_opcode (pstate, OP_FLOAT);
+ write_exp_elt_type (pstate, $1.type);
+ write_exp_elt_floatcst (pstate, $1.val);
+ write_exp_elt_opcode (pstate, OP_FLOAT); }
;
exp : variable
;
-exp : VARIABLE
+exp : DOLLAR_VARIABLE
;
exp : SIZEOF '(' type ')' %prec UNARY
- { write_exp_elt_opcode (OP_LONG);
- write_exp_elt_type (parse_f_type->builtin_integer);
- CHECK_TYPEDEF ($3);
- write_exp_elt_longcst ((LONGEST) TYPE_LENGTH ($3));
- write_exp_elt_opcode (OP_LONG); }
+ { write_exp_elt_opcode (pstate, OP_LONG);
+ write_exp_elt_type (pstate,
+ parse_f_type (pstate)
+ ->builtin_integer);
+ $3 = check_typedef ($3);
+ write_exp_elt_longcst (pstate,
+ (LONGEST) TYPE_LENGTH ($3));
+ write_exp_elt_opcode (pstate, OP_LONG); }
;
exp : BOOLEAN_LITERAL
- { write_exp_elt_opcode (OP_BOOL);
- write_exp_elt_longcst ((LONGEST) $1);
- write_exp_elt_opcode (OP_BOOL);
+ { write_exp_elt_opcode (pstate, OP_BOOL);
+ write_exp_elt_longcst (pstate, (LONGEST) $1);
+ write_exp_elt_opcode (pstate, OP_BOOL);
}
;
exp : STRING_LITERAL
{
- write_exp_elt_opcode (OP_STRING);
- write_exp_string ($1);
- write_exp_elt_opcode (OP_STRING);
+ write_exp_elt_opcode (pstate, OP_STRING);
+ write_exp_string (pstate, $1);
+ write_exp_elt_opcode (pstate, OP_STRING);
}
;
variable: name_not_typename
- { struct symbol *sym = $1.sym;
+ { struct block_symbol sym = $1.sym;
- if (sym)
+ if (sym.symbol)
{
- if (symbol_read_needs_frame (sym))
- {
- if (innermost_block == 0
- || contained_in (block_found,
- innermost_block))
- innermost_block = block_found;
- }
- write_exp_elt_opcode (OP_VAR_VALUE);
- /* We want to use the selected frame, not
- another more inner frame which happens to
- be in the same block. */
- write_exp_elt_block (NULL);
- write_exp_elt_sym (sym);
- write_exp_elt_opcode (OP_VAR_VALUE);
+ if (symbol_read_needs_frame (sym.symbol))
+ pstate->block_tracker->update (sym);
+ write_exp_elt_opcode (pstate, OP_VAR_VALUE);
+ write_exp_elt_block (pstate, sym.block);
+ write_exp_elt_sym (pstate, sym.symbol);
+ write_exp_elt_opcode (pstate, OP_VAR_VALUE);
break;
}
else
{
- struct minimal_symbol *msymbol;
- char *arg = copy_name ($1.stoken);
+ struct bound_minimal_symbol msymbol;
+ std::string arg = copy_name ($1.stoken);
msymbol =
- lookup_minimal_symbol (arg, NULL, NULL);
- if (msymbol != NULL)
- write_exp_msymbol (msymbol);
+ lookup_bound_minimal_symbol (arg.c_str ());
+ if (msymbol.minsym != NULL)
+ write_exp_msymbol (pstate, msymbol);
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));
+ arg.c_str ());
}
}
;
struct type *range_type;
while (!done)
- switch (pop_type ())
+ switch (type_stack->pop ())
{
case tp_end:
done = 1;
follow_type = lookup_pointer_type (follow_type);
break;
case tp_reference:
- follow_type = lookup_reference_type (follow_type);
+ follow_type = lookup_lvalue_reference_type (follow_type);
break;
case tp_array:
- array_size = pop_type_int ();
+ array_size = type_stack->pop_int ();
if (array_size != -1)
{
range_type =
- create_range_type ((struct type *) NULL,
- parse_f_type->builtin_integer,
- 0, array_size - 1);
+ create_static_range_type ((struct type *) NULL,
+ parse_f_type (pstate)
+ ->builtin_integer,
+ 0, array_size - 1);
follow_type =
create_array_type ((struct type *) NULL,
follow_type, range_type);
case tp_function:
follow_type = lookup_function_type (follow_type);
break;
+ case tp_kind:
+ {
+ int kind_val = type_stack->pop_int ();
+ follow_type
+ = convert_to_kind_type (follow_type, kind_val);
+ }
+ break;
}
$$ = follow_type;
}
;
abs_decl: '*'
- { push_type (tp_pointer); $$ = 0; }
+ { type_stack->push (tp_pointer); $$ = 0; }
| '*' abs_decl
- { push_type (tp_pointer); $$ = $2; }
+ { type_stack->push (tp_pointer); $$ = $2; }
| '&'
- { push_type (tp_reference); $$ = 0; }
+ { type_stack->push (tp_reference); $$ = 0; }
| '&' abs_decl
- { push_type (tp_reference); $$ = $2; }
+ { type_stack->push (tp_reference); $$ = $2; }
| direct_abs_decl
;
direct_abs_decl: '(' abs_decl ')'
{ $$ = $2; }
+ | '(' KIND '=' INT ')'
+ { push_kind_type ($4.val, $4.type); }
+ | '*' INT
+ { push_kind_type ($2.val, $2.type); }
| direct_abs_decl func_mod
- { push_type (tp_function); }
+ { type_stack->push (tp_function); }
| func_mod
- { push_type (tp_function); }
+ { type_stack->push (tp_function); }
;
func_mod: '(' ')'
: TYPENAME
{ $$ = $1.type; }
| INT_KEYWORD
- { $$ = parse_f_type->builtin_integer; }
+ { $$ = parse_f_type (pstate)->builtin_integer; }
| INT_S2_KEYWORD
- { $$ = parse_f_type->builtin_integer_s2; }
+ { $$ = parse_f_type (pstate)->builtin_integer_s2; }
| CHARACTER
- { $$ = parse_f_type->builtin_character; }
+ { $$ = parse_f_type (pstate)->builtin_character; }
| LOGICAL_S8_KEYWORD
- { $$ = parse_f_type->builtin_logical_s8; }
+ { $$ = parse_f_type (pstate)->builtin_logical_s8; }
| LOGICAL_KEYWORD
- { $$ = parse_f_type->builtin_logical; }
+ { $$ = parse_f_type (pstate)->builtin_logical; }
| LOGICAL_S2_KEYWORD
- { $$ = parse_f_type->builtin_logical_s2; }
+ { $$ = parse_f_type (pstate)->builtin_logical_s2; }
| LOGICAL_S1_KEYWORD
- { $$ = parse_f_type->builtin_logical_s1; }
+ { $$ = parse_f_type (pstate)->builtin_logical_s1; }
| REAL_KEYWORD
- { $$ = parse_f_type->builtin_real; }
+ { $$ = parse_f_type (pstate)->builtin_real; }
| REAL_S8_KEYWORD
- { $$ = parse_f_type->builtin_real_s8; }
+ { $$ = parse_f_type (pstate)->builtin_real_s8; }
| REAL_S16_KEYWORD
- { $$ = parse_f_type->builtin_real_s16; }
+ { $$ = parse_f_type (pstate)->builtin_real_s16; }
+ | COMPLEX_KEYWORD
+ { $$ = parse_f_type (pstate)->builtin_complex_s8; }
| COMPLEX_S8_KEYWORD
- { $$ = parse_f_type->builtin_complex_s8; }
+ { $$ = parse_f_type (pstate)->builtin_complex_s8; }
| COMPLEX_S16_KEYWORD
- { $$ = parse_f_type->builtin_complex_s16; }
+ { $$ = parse_f_type (pstate)->builtin_complex_s16; }
| COMPLEX_S32_KEYWORD
- { $$ = parse_f_type->builtin_complex_s32; }
+ { $$ = parse_f_type (pstate)->builtin_complex_s32; }
+ | SINGLE PRECISION
+ { $$ = parse_f_type (pstate)->builtin_real;}
+ | DOUBLE PRECISION
+ { $$ = parse_f_type (pstate)->builtin_real_s8;}
+ | SINGLE COMPLEX_KEYWORD
+ { $$ = parse_f_type (pstate)->builtin_complex_s8;}
+ | DOUBLE COMPLEX_KEYWORD
+ { $$ = parse_f_type (pstate)->builtin_complex_s16;}
;
nonempty_typelist
/*** Needs some error checking for the float case ***/
static int
-parse_number (char *p, int len, int parsed_float, YYSTYPE *putithere)
+parse_number (struct parser_state *par_state,
+ const char *p, int len, int parsed_float, YYSTYPE *putithere)
{
LONGEST n = 0;
LONGEST prevn = 0;
if (parsed_float)
{
/* It's a float since it contains a point or an exponent. */
- /* [dD] is not understood as an exponent by atof, change it to 'e'. */
+ /* [dD] is not understood as an exponent by parse_float,
+ change it to 'e'. */
char *tmp, *tmp2;
tmp = xstrdup (p);
for (tmp2 = tmp; *tmp2; ++tmp2)
if (*tmp2 == 'd' || *tmp2 == 'D')
*tmp2 = 'e';
- putithere->dval = atof (tmp);
+
+ /* FIXME: Should this use different types? */
+ putithere->typed_val_float.type = parse_f_type (pstate)->builtin_real_s8;
+ bool parsed = parse_float (tmp, len,
+ putithere->typed_val_float.type,
+ putithere->typed_val_float.val);
free (tmp);
- return FLOAT;
+ return parsed? FLOAT : ERROR;
}
/* Handle base-switching prefixes 0x, 0t, 0d, 0 */
are the same size. So we shift it twice, with fewer bits
each time, for the same result. */
- if ((gdbarch_int_bit (parse_gdbarch) != gdbarch_long_bit (parse_gdbarch)
+ if ((gdbarch_int_bit (par_state->gdbarch ())
+ != gdbarch_long_bit (par_state->gdbarch ())
&& ((n >> 2)
- >> (gdbarch_int_bit (parse_gdbarch)-2))) /* Avoid shift warning */
+ >> (gdbarch_int_bit (par_state->gdbarch ())-2))) /* Avoid
+ shift warning */
|| long_p)
{
- high_bit = ((ULONGEST)1) << (gdbarch_long_bit (parse_gdbarch)-1);
- unsigned_type = parse_type->builtin_unsigned_long;
- signed_type = parse_type->builtin_long;
+ high_bit = ((ULONGEST)1)
+ << (gdbarch_long_bit (par_state->gdbarch ())-1);
+ unsigned_type = parse_type (par_state)->builtin_unsigned_long;
+ signed_type = parse_type (par_state)->builtin_long;
}
else
{
- high_bit = ((ULONGEST)1) << (gdbarch_int_bit (parse_gdbarch)-1);
- unsigned_type = parse_type->builtin_unsigned_int;
- signed_type = parse_type->builtin_int;
+ high_bit =
+ ((ULONGEST)1) << (gdbarch_int_bit (par_state->gdbarch ()) - 1);
+ unsigned_type = parse_type (par_state)->builtin_unsigned_int;
+ signed_type = parse_type (par_state)->builtin_int;
}
putithere->typed_val.val = n;
return INT;
}
+/* Called to setup the type stack when we encounter a '(kind=N)' type
+ modifier, performs some bounds checking on 'N' and then pushes this to
+ the type stack followed by the 'tp_kind' marker. */
+static void
+push_kind_type (LONGEST val, struct type *type)
+{
+ int ival;
+
+ if (TYPE_UNSIGNED (type))
+ {
+ ULONGEST uval = static_cast <ULONGEST> (val);
+ if (uval > INT_MAX)
+ error (_("kind value out of range"));
+ ival = static_cast <int> (uval);
+ }
+ else
+ {
+ if (val > INT_MAX || val < 0)
+ error (_("kind value out of range"));
+ ival = static_cast <int> (val);
+ }
+
+ type_stack->push (ival);
+ type_stack->push (tp_kind);
+}
+
+/* Called when a type has a '(kind=N)' modifier after it, for example
+ 'character(kind=1)'. The BASETYPE is the type described by 'character'
+ in our example, and KIND is the integer '1'. This function returns a
+ new type that represents the basetype of a specific kind. */
+static struct type *
+convert_to_kind_type (struct type *basetype, int kind)
+{
+ if (basetype == parse_f_type (pstate)->builtin_character)
+ {
+ /* Character of kind 1 is a special case, this is the same as the
+ base character type. */
+ if (kind == 1)
+ return parse_f_type (pstate)->builtin_character;
+ }
+ else if (basetype == parse_f_type (pstate)->builtin_complex_s8)
+ {
+ if (kind == 4)
+ return parse_f_type (pstate)->builtin_complex_s8;
+ else if (kind == 8)
+ return parse_f_type (pstate)->builtin_complex_s16;
+ else if (kind == 16)
+ return parse_f_type (pstate)->builtin_complex_s32;
+ }
+ else if (basetype == parse_f_type (pstate)->builtin_real)
+ {
+ if (kind == 4)
+ return parse_f_type (pstate)->builtin_real;
+ else if (kind == 8)
+ return parse_f_type (pstate)->builtin_real_s8;
+ else if (kind == 16)
+ return parse_f_type (pstate)->builtin_real_s16;
+ }
+ else if (basetype == parse_f_type (pstate)->builtin_logical)
+ {
+ if (kind == 1)
+ return parse_f_type (pstate)->builtin_logical_s1;
+ else if (kind == 2)
+ return parse_f_type (pstate)->builtin_logical_s2;
+ else if (kind == 4)
+ return parse_f_type (pstate)->builtin_logical;
+ else if (kind == 8)
+ return parse_f_type (pstate)->builtin_logical_s8;
+ }
+ else if (basetype == parse_f_type (pstate)->builtin_integer)
+ {
+ if (kind == 2)
+ return parse_f_type (pstate)->builtin_integer_s2;
+ else if (kind == 4)
+ return parse_f_type (pstate)->builtin_integer;
+ else if (kind == 8)
+ return parse_f_type (pstate)->builtin_integer_s8;
+ }
+
+ error (_("unsupported kind %d for type %s"),
+ kind, TYPE_SAFE_NAME (basetype));
+
+ /* Should never get here. */
+ return nullptr;
+}
+
struct token
{
- char *operator;
+ /* The string to match against. */
+ const char *oper;
+
+ /* The lexer token to return. */
int token;
+
+ /* The expression opcode to embed within the token. */
enum exp_opcode opcode;
+
+ /* When this is true the string in OPER is matched exactly including
+ case, when this is false OPER is matched case insensitively. */
+ bool case_sensitive;
};
static const struct token dot_ops[] =
{
- { ".and.", BOOL_AND, BINOP_END },
- { ".AND.", BOOL_AND, BINOP_END },
- { ".or.", BOOL_OR, BINOP_END },
- { ".OR.", BOOL_OR, BINOP_END },
- { ".not.", BOOL_NOT, BINOP_END },
- { ".NOT.", BOOL_NOT, BINOP_END },
- { ".eq.", EQUAL, BINOP_END },
- { ".EQ.", EQUAL, BINOP_END },
- { ".eqv.", EQUAL, BINOP_END },
- { ".NEQV.", NOTEQUAL, BINOP_END },
- { ".neqv.", NOTEQUAL, BINOP_END },
- { ".EQV.", EQUAL, BINOP_END },
- { ".ne.", NOTEQUAL, BINOP_END },
- { ".NE.", NOTEQUAL, BINOP_END },
- { ".le.", LEQ, BINOP_END },
- { ".LE.", LEQ, BINOP_END },
- { ".ge.", GEQ, BINOP_END },
- { ".GE.", GEQ, BINOP_END },
- { ".gt.", GREATERTHAN, BINOP_END },
- { ".GT.", GREATERTHAN, BINOP_END },
- { ".lt.", LESSTHAN, BINOP_END },
- { ".LT.", LESSTHAN, BINOP_END },
- { NULL, 0, 0 }
+ { ".and.", BOOL_AND, BINOP_END, false },
+ { ".or.", BOOL_OR, BINOP_END, false },
+ { ".not.", BOOL_NOT, BINOP_END, false },
+ { ".eq.", EQUAL, BINOP_END, false },
+ { ".eqv.", EQUAL, BINOP_END, false },
+ { ".neqv.", NOTEQUAL, BINOP_END, false },
+ { ".ne.", NOTEQUAL, BINOP_END, false },
+ { ".le.", LEQ, BINOP_END, false },
+ { ".ge.", GEQ, BINOP_END, false },
+ { ".gt.", GREATERTHAN, BINOP_END, false },
+ { ".lt.", LESSTHAN, BINOP_END, false },
};
-struct f77_boolean_val
+/* Holds the Fortran representation of a boolean, and the integer value we
+ substitute in when one of the matching strings is parsed. */
+struct f77_boolean_val
{
- char *name;
+ /* The string representing a Fortran boolean. */
+ const char *name;
+
+ /* The integer value to replace it with. */
int value;
-};
+};
-static const struct f77_boolean_val boolean_values[] =
+/* The set of Fortran booleans. These are matched case insensitively. */
+static const struct f77_boolean_val boolean_values[] =
{
{ ".true.", 1 },
- { ".TRUE.", 1 },
- { ".false.", 0 },
- { ".FALSE.", 0 },
- { NULL, 0 }
+ { ".false.", 0 }
};
-static const struct token f77_keywords[] =
+static const struct token f77_keywords[] =
{
- { "complex_16", COMPLEX_S16_KEYWORD, BINOP_END },
- { "complex_32", COMPLEX_S32_KEYWORD, BINOP_END },
- { "character", CHARACTER, BINOP_END },
- { "integer_2", INT_S2_KEYWORD, BINOP_END },
- { "logical_1", LOGICAL_S1_KEYWORD, BINOP_END },
- { "logical_2", LOGICAL_S2_KEYWORD, BINOP_END },
- { "logical_8", LOGICAL_S8_KEYWORD, BINOP_END },
- { "complex_8", COMPLEX_S8_KEYWORD, BINOP_END },
- { "integer", INT_KEYWORD, BINOP_END },
- { "logical", LOGICAL_KEYWORD, BINOP_END },
- { "real_16", REAL_S16_KEYWORD, BINOP_END },
- { "complex", COMPLEX_S8_KEYWORD, BINOP_END },
- { "sizeof", SIZEOF, BINOP_END },
- { "real_8", REAL_S8_KEYWORD, BINOP_END },
- { "real", REAL_KEYWORD, BINOP_END },
- { NULL, 0, 0 }
-};
+ /* Historically these have always been lowercase only in GDB. */
+ { "complex_16", COMPLEX_S16_KEYWORD, BINOP_END, true },
+ { "complex_32", COMPLEX_S32_KEYWORD, BINOP_END, true },
+ { "character", CHARACTER, BINOP_END, true },
+ { "integer_2", INT_S2_KEYWORD, BINOP_END, true },
+ { "logical_1", LOGICAL_S1_KEYWORD, BINOP_END, true },
+ { "logical_2", LOGICAL_S2_KEYWORD, BINOP_END, true },
+ { "logical_8", LOGICAL_S8_KEYWORD, BINOP_END, true },
+ { "complex_8", COMPLEX_S8_KEYWORD, BINOP_END, true },
+ { "integer", INT_KEYWORD, BINOP_END, true },
+ { "logical", LOGICAL_KEYWORD, BINOP_END, true },
+ { "real_16", REAL_S16_KEYWORD, BINOP_END, true },
+ { "complex", COMPLEX_KEYWORD, BINOP_END, true },
+ { "sizeof", SIZEOF, BINOP_END, true },
+ { "real_8", REAL_S8_KEYWORD, BINOP_END, true },
+ { "real", REAL_KEYWORD, BINOP_END, true },
+ { "single", SINGLE, BINOP_END, true },
+ { "double", DOUBLE, BINOP_END, true },
+ { "precision", PRECISION, BINOP_END, true },
+ /* The following correspond to actual functions in Fortran and are case
+ insensitive. */
+ { "kind", KIND, BINOP_END, false },
+ { "abs", UNOP_INTRINSIC, UNOP_ABS, false },
+ { "mod", BINOP_INTRINSIC, BINOP_MOD, false },
+ { "floor", UNOP_INTRINSIC, UNOP_FORTRAN_FLOOR, false },
+ { "ceiling", UNOP_INTRINSIC, UNOP_FORTRAN_CEILING, false },
+ { "modulo", BINOP_INTRINSIC, BINOP_FORTRAN_MODULO, false },
+ { "cmplx", BINOP_INTRINSIC, BINOP_FORTRAN_CMPLX, false },
+};
/* Implementation of a dynamically expandable buffer for processing input
characters acquired through lexptr and building a value to return in
{
int growby;
- growby = max (count, GROWBY_MIN_SIZE);
+ growby = std::max (count, GROWBY_MIN_SIZE);
tempbufsize += growby;
if (tempbuf == NULL)
tempbuf = (char *) malloc (tempbufsize);
static int
match_string_literal (void)
{
- char *tokptr = lexptr;
+ const char *tokptr = pstate->lexptr;
for (tempbufindex = 0, tokptr++; *tokptr != '\0'; tokptr++)
{
CHECKBUF (1);
- if (*tokptr == *lexptr)
+ if (*tokptr == *pstate->lexptr)
{
- if (*(tokptr + 1) == *lexptr)
+ if (*(tokptr + 1) == *pstate->lexptr)
tokptr++;
else
break;
tempbuf[tempbufindex] = '\0';
yylval.sval.ptr = tempbuf;
yylval.sval.length = tempbufindex;
- lexptr = ++tokptr;
+ pstate->lexptr = ++tokptr;
return STRING_LITERAL;
}
}
{
int c;
int namelen;
- unsigned int i,token;
- char *tokstart;
+ unsigned int token;
+ const char *tokstart;
retry:
- prev_lexptr = lexptr;
+ pstate->prev_lexptr = pstate->lexptr;
- tokstart = lexptr;
-
- /* First of all, let us make sure we are not dealing with the
+ tokstart = pstate->lexptr;
+
+ /* First of all, let us make sure we are not dealing with the
special tokens .true. and .false. which evaluate to 1 and 0. */
-
- if (*lexptr == '.')
- {
- for (i = 0; boolean_values[i].name != NULL; i++)
+
+ if (*pstate->lexptr == '.')
+ {
+ for (int i = 0; i < ARRAY_SIZE (boolean_values); i++)
{
- if (strncmp (tokstart, boolean_values[i].name,
- strlen (boolean_values[i].name)) == 0)
+ if (strncasecmp (tokstart, boolean_values[i].name,
+ strlen (boolean_values[i].name)) == 0)
{
- lexptr += strlen (boolean_values[i].name);
- yylval.lval = boolean_values[i].value;
+ pstate->lexptr += strlen (boolean_values[i].name);
+ yylval.lval = boolean_values[i].value;
return BOOLEAN_LITERAL;
}
}
}
-
+
/* See if it is a special .foo. operator. */
-
- for (i = 0; dot_ops[i].operator != NULL; i++)
- if (strncmp (tokstart, dot_ops[i].operator,
- strlen (dot_ops[i].operator)) == 0)
+ for (int i = 0; i < ARRAY_SIZE (dot_ops); i++)
+ if (strncasecmp (tokstart, dot_ops[i].oper,
+ strlen (dot_ops[i].oper)) == 0)
{
- lexptr += strlen (dot_ops[i].operator);
+ gdb_assert (!dot_ops[i].case_sensitive);
+ pstate->lexptr += strlen (dot_ops[i].oper);
yylval.opcode = dot_ops[i].opcode;
return dot_ops[i].token;
}
-
+
/* See if it is an exponentiation operator. */
if (strncmp (tokstart, "**", 2) == 0)
{
- lexptr += 2;
+ pstate->lexptr += 2;
yylval.opcode = BINOP_EXP;
return STARSTAR;
}
case ' ':
case '\t':
case '\n':
- lexptr++;
+ pstate->lexptr++;
goto retry;
case '\'':
case '(':
paren_depth++;
- lexptr++;
+ pstate->lexptr++;
return c;
case ')':
if (paren_depth == 0)
return 0;
paren_depth--;
- lexptr++;
+ pstate->lexptr++;
return c;
case ',':
- if (comma_terminates && paren_depth == 0)
+ if (pstate->comma_terminates && paren_depth == 0)
return 0;
- lexptr++;
+ pstate->lexptr++;
return c;
case '.':
/* Might be a floating point number. */
- if (lexptr[1] < '0' || lexptr[1] > '9')
+ if (pstate->lexptr[1] < '0' || pstate->lexptr[1] > '9')
goto symbol; /* Nope, must be a symbol. */
- /* FALL THRU into number case. */
+ /* FALL THRU. */
case '0':
case '1':
{
/* It's a number. */
int got_dot = 0, got_e = 0, got_d = 0, toktype;
- char *p = tokstart;
+ const char *p = tokstart;
int hex = input_radix > 10;
if (c == '0' && (p[1] == 'x' || p[1] == 'X'))
&& (*p < 'A' || *p > 'Z')))
break;
}
- toktype = parse_number (tokstart, p - tokstart, got_dot|got_e|got_d,
+ toktype = parse_number (pstate, tokstart, p - tokstart,
+ got_dot|got_e|got_d,
&yylval);
if (toktype == ERROR)
{
err_copy[p - tokstart] = 0;
error (_("Invalid number \"%s\"."), err_copy);
}
- lexptr = p;
+ pstate->lexptr = p;
return toktype;
}
case '{':
case '}':
symbol:
- lexptr++;
+ pstate->lexptr++;
return c;
}
if (namelen == 2 && tokstart[0] == 'i' && tokstart[1] == 'f')
return 0;
- lexptr += namelen;
+ pstate->lexptr += namelen;
/* Catch specific keywords. */
-
- for (i = 0; f77_keywords[i].operator != NULL; i++)
- if (strlen (f77_keywords[i].operator) == namelen
- && strncmp (tokstart, f77_keywords[i].operator, namelen) == 0)
+
+ for (int i = 0; i < ARRAY_SIZE (f77_keywords); i++)
+ if (strlen (f77_keywords[i].oper) == namelen
+ && ((!f77_keywords[i].case_sensitive
+ && strncasecmp (tokstart, f77_keywords[i].oper, namelen) == 0)
+ || (f77_keywords[i].case_sensitive
+ && strncmp (tokstart, f77_keywords[i].oper, namelen) == 0)))
{
- /* lexptr += strlen(f77_keywords[i].operator); */
yylval.opcode = f77_keywords[i].opcode;
return f77_keywords[i].token;
}
-
+
yylval.sval.ptr = tokstart;
yylval.sval.length = namelen;
if (*tokstart == '$')
{
- write_dollar_variable (yylval.sval);
- return VARIABLE;
+ write_dollar_variable (pstate, yylval.sval);
+ return DOLLAR_VARIABLE;
}
/* 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;
+ std::string tmp = copy_name (yylval.sval);
+ struct block_symbol result;
+ enum domain_enum_tag lookup_domains[] =
+ {
+ STRUCT_DOMAIN,
+ VAR_DOMAIN,
+ MODULE_DOMAIN
+ };
int hextype;
-
- sym = lookup_symbol (tmp, expression_context_block,
- VAR_DOMAIN,
- parse_language->la_language == language_cplus
- ? &is_a_field_of_this : NULL);
- if (sym && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
+
+ for (int i = 0; i < ARRAY_SIZE (lookup_domains); ++i)
{
- yylval.tsym.type = SYMBOL_TYPE (sym);
- return TYPENAME;
+ result = lookup_symbol (tmp.c_str (), pstate->expression_context_block,
+ lookup_domains[i], NULL);
+ if (result.symbol && SYMBOL_CLASS (result.symbol) == LOC_TYPEDEF)
+ {
+ yylval.tsym.type = SYMBOL_TYPE (result.symbol);
+ return TYPENAME;
+ }
+
+ if (result.symbol)
+ break;
}
+
yylval.tsym.type
- = language_lookup_primitive_type_by_name (parse_language,
- parse_gdbarch, tmp);
+ = language_lookup_primitive_type (pstate->language (),
+ pstate->gdbarch (), tmp.c_str ());
if (yylval.tsym.type != NULL)
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
+ if (!result.symbol
&& ((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);
+ hextype = parse_number (pstate, tokstart, namelen, 0, &newlval);
if (hextype == INT)
{
- yylval.ssym.sym = sym;
- yylval.ssym.is_a_field_of_this = is_a_field_of_this;
+ yylval.ssym.sym = result;
+ yylval.ssym.is_a_field_of_this = false;
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;
+ yylval.ssym.sym = result;
+ yylval.ssym.is_a_field_of_this = false;
return NAME;
}
}
-void
-yyerror (char *msg)
+int
+f_parse (struct parser_state *par_state)
+{
+ /* Setting up the parser state. */
+ scoped_restore pstate_restore = make_scoped_restore (&pstate);
+ scoped_restore restore_yydebug = make_scoped_restore (&yydebug,
+ parser_debug);
+ gdb_assert (par_state != NULL);
+ pstate = par_state;
+ paren_depth = 0;
+
+ struct type_stack stack;
+ scoped_restore restore_type_stack = make_scoped_restore (&type_stack,
+ &stack);
+
+ return yyparse ();
+}
+
+static void
+yyerror (const char *msg)
{
- if (prev_lexptr)
- lexptr = prev_lexptr;
+ if (pstate->prev_lexptr)
+ pstate->lexptr = pstate->prev_lexptr;
- error (_("A %s in expression, near `%s'."), (msg ? msg : "error"), lexptr);
+ error (_("A %s in expression, near `%s'."), msg, pstate->lexptr);
}