/* YACC parser for C expressions, for GDB.
- Copyright (C) 1986, 1989, 1990, 1991, 1993, 1994, 1996, 1997
+ Copyright 1986, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ 1998, 1999, 2000
Free Software Foundation, Inc.
This file is part of GDB.
#include "symfile.h" /* Required by objfiles.h. */
#include "objfiles.h" /* For have_full_symbols and have_partial_symbols */
+/* Flag indicating we're dealing with HP-compiled objects */
+extern int hp_som_som_object_present;
+
/* 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
#define YYDEBUG 0 /* Default to no yydebug support */
#endif
-int
-yyparse PARAMS ((void));
+int yyparse (void);
-static int
-yylex PARAMS ((void));
+static int yylex (void);
-void
-yyerror PARAMS ((char *));
+void yyerror (char *);
%}
%{
/* YYSTYPE gets defined by %union */
-static int
-parse_number PARAMS ((char *, int, int, YYSTYPE *));
+static int parse_number (char *, int, int, YYSTYPE *);
%}
%type <voidval> exp exp1 type_exp start variable qualified_name lcurly
/* C++ */
%token THIS
+%token TRUEKEYWORD
+%token FALSEKEYWORD
+
%left ','
%left ABOVE_COMMA
%right UNARY INCREMENT DECREMENT
%right ARROW '.' '[' '('
%token <ssym> BLOCKNAME
+%token <bval> FILENAME
%type <bval> block
%left COLONCOLON
write_exp_elt_opcode (UNOP_ADDR);
write_exp_elt_opcode (STRUCTOP_MPTR); }
;
+
exp : exp ARROW '*' exp
{ write_exp_elt_opcode (STRUCTOP_MPTR); }
;
write_exp_elt_opcode (STRUCTOP_STRUCT); }
;
-/* start-sanitize-gm
-Need to find a better way to do this...
-exp : exp '@' name
- { write_exp_elt_opcode (STRUCTOP_FIELD);
- write_exp_string ($3);
- write_exp_elt_opcode (STRUCTOP_FIELD);
- }
- end-sanitize-gm */
-
exp : exp '.' qualified_name
{ /* exp.type::name becomes exp.*(&type::name) */
/* Note: this doesn't work if name is a
write_exp_elt_opcode (OP_THIS); }
;
+exp : TRUEKEYWORD
+ { write_exp_elt_opcode (OP_LONG);
+ write_exp_elt_type (builtin_type_bool);
+ write_exp_elt_longcst ((LONGEST) 1);
+ write_exp_elt_opcode (OP_LONG); }
+ ;
+
+exp : FALSEKEYWORD
+ { write_exp_elt_opcode (OP_LONG);
+ write_exp_elt_type (builtin_type_bool);
+ write_exp_elt_longcst ((LONGEST) 0);
+ write_exp_elt_opcode (OP_LONG); }
+ ;
+
/* end of C++. */
block : BLOCKNAME
{
- if ($1.sym != 0)
- $$ = SYMBOL_BLOCK_VALUE ($1.sym);
+ if ($1.sym)
+ $$ = SYMBOL_BLOCK_VALUE ($1.sym);
else
- {
- struct symtab *tem =
- lookup_symtab (copy_name ($1.stoken));
- if (tem)
- $$ = BLOCKVECTOR_BLOCK (BLOCKVECTOR (tem), STATIC_BLOCK);
- else
- error ("No file or function \"%s\".",
- copy_name ($1.stoken));
- }
+ error ("No file or function \"%s\".",
+ copy_name ($1.stoken));
+ }
+ | FILENAME
+ {
+ $$ = $1;
}
;
}
;
+space_identifier : '@' NAME
+ { push_type_address_space (copy_name ($2.stoken));
+ push_type (tp_space_identifier);
+ }
+ ;
-ptype : typebase
- /* "const" and "volatile" are curently ignored. A type qualifier
- before the type is currently handled in the typebase rule.
- The reason for recognizing these here (shift/reduce conflicts)
- might be obsolete now that some pointer to member rules have
- been deleted. */
- | typebase CONST_KEYWORD
- | typebase VOLATILE_KEYWORD
- | typebase abs_decl
- { $$ = follow_types ($1); }
- | typebase CONST_KEYWORD abs_decl
- { $$ = follow_types ($1); }
- | typebase VOLATILE_KEYWORD abs_decl
- { $$ = follow_types ($1); }
+const_or_volatile: const_or_volatile_noopt
+ |
+ ;
+
+cv_with_space_id : const_or_volatile space_identifier const_or_volatile
+ ;
+
+const_or_volatile_or_space_identifier_noopt: cv_with_space_id
+ | const_or_volatile_noopt
+ ;
+
+const_or_volatile_or_space_identifier:
+ const_or_volatile_or_space_identifier_noopt
+ |
;
abs_decl: '*'
{ $$ = builtin_type_short; }
| LONG INT_KEYWORD
{ $$ = builtin_type_long; }
+ | LONG SIGNED_KEYWORD INT_KEYWORD
+ { $$ = builtin_type_long; }
+ | LONG SIGNED_KEYWORD
+ { $$ = builtin_type_long; }
+ | SIGNED_KEYWORD LONG INT_KEYWORD
+ { $$ = builtin_type_long; }
| UNSIGNED LONG INT_KEYWORD
{ $$ = builtin_type_unsigned_long; }
+ | LONG UNSIGNED INT_KEYWORD
+ { $$ = builtin_type_unsigned_long; }
+ | LONG UNSIGNED
+ { $$ = builtin_type_unsigned_long; }
| LONG LONG
{ $$ = builtin_type_long_long; }
| LONG LONG INT_KEYWORD
{ $$ = builtin_type_long_long; }
+ | LONG LONG SIGNED_KEYWORD INT_KEYWORD
+ { $$ = builtin_type_long_long; }
+ | LONG LONG SIGNED_KEYWORD
+ { $$ = builtin_type_long_long; }
+ | SIGNED_KEYWORD LONG LONG
+ { $$ = builtin_type_long_long; }
| UNSIGNED LONG LONG
{ $$ = builtin_type_unsigned_long_long; }
| UNSIGNED LONG LONG INT_KEYWORD
{ $$ = builtin_type_unsigned_long_long; }
+ | LONG LONG UNSIGNED
+ { $$ = builtin_type_unsigned_long_long; }
+ | LONG LONG UNSIGNED INT_KEYWORD
+ { $$ = builtin_type_unsigned_long_long; }
+ | SIGNED_KEYWORD LONG LONG
+ { $$ = lookup_signed_typename ("long long"); }
+ | SIGNED_KEYWORD LONG LONG INT_KEYWORD
+ { $$ = lookup_signed_typename ("long long"); }
| SHORT INT_KEYWORD
{ $$ = builtin_type_short; }
+ | SHORT SIGNED_KEYWORD INT_KEYWORD
+ { $$ = builtin_type_short; }
+ | SHORT SIGNED_KEYWORD
+ { $$ = builtin_type_short; }
| UNSIGNED SHORT INT_KEYWORD
{ $$ = builtin_type_unsigned_short; }
+ | SHORT UNSIGNED
+ { $$ = builtin_type_unsigned_short; }
+ | SHORT UNSIGNED INT_KEYWORD
+ { $$ = builtin_type_unsigned_short; }
| DOUBLE_KEYWORD
{ $$ = builtin_type_double; }
| LONG DOUBLE_KEYWORD
{ $$ = lookup_signed_typename (TYPE_NAME($2.type)); }
| SIGNED_KEYWORD
{ $$ = builtin_type_int; }
+ /* It appears that this rule for templates is never
+ reduced; template recognition happens by lookahead
+ in the token processing code in yylex. */
| TEMPLATE name '<' type '>'
{ $$ = lookup_template_type(copy_name($2), $4,
expression_context_block);
}
- /* "const" and "volatile" are curently ignored. A type qualifier
- after the type is handled in the ptype rule. I think these could
- be too. */
- | CONST_KEYWORD typebase { $$ = $2; }
- | VOLATILE_KEYWORD typebase { $$ = $2; }
+ | const_or_volatile_or_space_identifier_noopt typebase
+ { $$ = follow_types ($2); }
+ | typebase const_or_volatile_or_space_identifier_noopt
+ { $$ = follow_types ($1); }
;
typename: TYPENAME
}
;
+ptype : typebase
+ | ptype const_or_volatile_or_space_identifier abs_decl const_or_volatile_or_space_identifier
+ { $$ = follow_types ($1); }
+ ;
+
+const_and_volatile: CONST_KEYWORD VOLATILE_KEYWORD
+ | VOLATILE_KEYWORD CONST_KEYWORD
+ ;
+
+const_or_volatile_noopt: const_and_volatile
+ { push_type (tp_const);
+ push_type (tp_volatile);
+ }
+ | CONST_KEYWORD
+ { push_type (tp_const); }
+ | VOLATILE_KEYWORD
+ { push_type (tp_volatile); }
+ ;
+
name : NAME { $$ = $1.stoken; }
| BLOCKNAME { $$ = $1.stoken; }
| TYPENAME { $$ = $1.stoken; }
if (parsed_float)
{
- char c;
-
/* It's a float since it contains a point or an exponent. */
+ char c;
+ int num = 0; /* number of tokens scanned by scanf */
+ char saved_char = p[len];
+ p[len] = 0; /* null-terminate the token */
if (sizeof (putithere->typed_val_float.dval) <= sizeof (float))
- sscanf (p, "%g", &putithere->typed_val_float.dval);
+ num = sscanf (p, "%g%c", (float *) &putithere->typed_val_float.dval,&c);
else if (sizeof (putithere->typed_val_float.dval) <= sizeof (double))
- sscanf (p, "%lg", &putithere->typed_val_float.dval);
+ num = sscanf (p, "%lg%c", (double *) &putithere->typed_val_float.dval,&c);
else
{
-#ifdef PRINTF_HAS_LONG_DOUBLE
- sscanf (p, "%Lg", &putithere->typed_val_float.dval);
+#ifdef SCANF_HAS_LONG_DOUBLE
+ num = sscanf (p, "%Lg%c", &putithere->typed_val_float.dval,&c);
#else
/* Scan it into a double, then assign it to the long double.
This at least wins with values representable in the range
of doubles. */
double temp;
- sscanf (p, "%lg", &temp);
+ num = sscanf (p, "%lg%c", &temp,&c);
putithere->typed_val_float.dval = temp;
#endif
}
-
+ p[len] = saved_char; /* restore the input stream */
+ if (num != 1) /* check scanf found ONLY a float ... */
+ return ERROR;
/* See if it has `f' or `l' suffix (float or long double). */
c = tolower (p[len - 1]);
}
else
{
- high_bit = (((ULONGEST)1)
- << (TARGET_LONG_LONG_BIT - 32 - 1)
- << 16
- << 16);
- if (high_bit == 0)
+ int shift;
+ if (sizeof (ULONGEST) * HOST_CHAR_BIT < TARGET_LONG_LONG_BIT)
/* A long long does not fit in a LONGEST. */
- high_bit =
- (ULONGEST)1 << (sizeof (LONGEST) * HOST_CHAR_BIT - 1);
+ shift = (sizeof (ULONGEST) * HOST_CHAR_BIT - 1);
+ else
+ shift = (TARGET_LONG_LONG_BIT - 1);
+ high_bit = (ULONGEST) 1 << shift;
unsigned_type = builtin_type_unsigned_long_long;
signed_type = builtin_type_long_long;
}
int tempbufindex;
static char *tempbuf;
static int tempbufsize;
-
+ struct symbol * sym_class = NULL;
+ char * token_string = NULL;
+ int class_prefix = 0;
+ int unquoted_expr;
+
retry:
+ prev_lexptr = lexptr;
+ unquoted_expr = 1;
+
tokstart = lexptr;
/* See if it is a special token of length 3. */
for (i = 0; i < sizeof tokentab3 / sizeof tokentab3[0]; i++)
if (namelen > 2)
{
lexptr = tokstart + namelen;
+ unquoted_expr = 0;
if (lexptr[-1] != '\'')
error ("Unmatched single quote.");
namelen -= 2;
FIXME: This mishandles `print $a<4&&$a>3'. */
if (c == '<')
- {
- int i = namelen;
- int nesting_level = 1;
- while (tokstart[++i])
- {
- if (tokstart[i] == '<')
- nesting_level++;
- else if (tokstart[i] == '>')
- {
- if (--nesting_level == 0)
- break;
- }
- }
- if (tokstart[i] == '>')
- namelen = i;
- else
- break;
+ {
+ /* Scan ahead to get rest of the template specification. Note
+ that we look ahead only when the '<' adjoins non-whitespace
+ characters; for comparison expressions, e.g. "a < b > c",
+ there must be spaces before the '<', etc. */
+
+ char * p = find_template_name_end (tokstart + namelen);
+ if (p)
+ namelen = p - tokstart;
+ break;
}
c = tokstart[++namelen];
}
return DOUBLE_KEYWORD;
break;
case 5:
- if (current_language->la_language == language_cplus
- && STREQN (tokstart, "class", 5))
- return CLASS;
+ if (current_language->la_language == language_cplus)
+ {
+ if (STREQN (tokstart, "false", 5))
+ return FALSEKEYWORD;
+ if (STREQN (tokstart, "class", 5))
+ return CLASS;
+ }
if (STREQN (tokstart, "union", 5))
return UNION;
if (STREQN (tokstart, "short", 5))
return ENUM;
if (STREQN (tokstart, "long", 4))
return LONG;
- if (current_language->la_language == language_cplus
- && STREQN (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, (int *) NULL,
- (struct symtab **) NULL))
- return THIS;
- }
+ if (current_language->la_language == language_cplus)
+ {
+ if (STREQN (tokstart, "true", 4))
+ return TRUEKEYWORD;
+
+ if (STREQN (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, (int *) NULL,
+ (struct symtab **) NULL))
+ return THIS;
+ }
+ }
break;
case 3:
if (STREQN (tokstart, "int", 3))
write_dollar_variable (yylval.sval);
return VARIABLE;
}
-
+
+ /* Look ahead and see if we can consume more of the input
+ string to get a reasonable class/namespace spec or a
+ fully-qualified name. This is a kludge to get around the
+ HP aCC compiler's generation of symbol names with embedded
+ colons for namespace and nested classes. */
+ if (unquoted_expr)
+ {
+ /* Only do it if not inside single quotes */
+ sym_class = parse_nested_classes_for_hpacc (yylval.sval.ptr, yylval.sval.length,
+ &token_string, &class_prefix, &lexptr);
+ if (sym_class)
+ {
+ /* Replace the current token with the bigger one we found */
+ yylval.sval.ptr = token_string;
+ yylval.sval.length = strlen (token_string);
+ }
+ }
+
/* 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
/* Call lookup_symtab, not lookup_partial_symtab, in case there are
no psymtabs (coff, xcoff, or some future change to blow away the
psymtabs once once symbols are read). */
- if ((sym && SYMBOL_CLASS (sym) == LOC_BLOCK) ||
- lookup_symtab (tmp))
+ if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
{
yylval.ssym.sym = sym;
yylval.ssym.is_a_field_of_this = is_a_field_of_this;
return BLOCKNAME;
}
+ else if (!sym)
+ { /* See if it's a file name. */
+ struct symtab *symtab;
+
+ symtab = lookup_symtab (tmp);
+
+ if (symtab)
+ {
+ yylval.bval = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), STATIC_BLOCK);
+ return FILENAME;
+ }
+ }
+
if (sym && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
{
#if 1
return TYPENAME;
}
if ((yylval.tsym.type = lookup_primitive_typename (tmp)) != 0)
- return TYPENAME;
+ return TYPENAME;
/* Input names that aren't symbols but ARE valid hex numbers,
when the input radix permits them, can be names or numbers
yyerror (msg)
char *msg;
{
+ if (prev_lexptr)
+ lexptr = prev_lexptr;
+
error ("A %s in expression, near `%s'.", (msg ? msg : "error"), lexptr);
}
projects / binutils.git / blobdiff