PR binutils/1437
[deliverable/binutils-gdb.git] / gdb / c-exp.y
index 7630da4a17daded26a1f49088d62a0a71703fda8..637796c181aa3c8d09ce2938e77dc98f72fb842b 100644 (file)
@@ -1,6 +1,6 @@
 /* YACC parser for C expressions, for GDB.
    Copyright 1986, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
-   1998, 1999, 2000, 2003
+   1998, 1999, 2000, 2003, 2004
    Free Software Foundation, Inc.
 
 This file is part of GDB.
@@ -53,9 +53,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 #include "block.h"
 #include "cp-support.h"
 
-/* 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
@@ -259,6 +256,10 @@ exp        :       '-' exp    %prec UNARY
                        { write_exp_elt_opcode (UNOP_NEG); }
        ;
 
+exp    :       '+' exp    %prec UNARY
+                       { write_exp_elt_opcode (UNOP_PLUS); }
+       ;
+
 exp    :       '!' exp    %prec UNARY
                        { write_exp_elt_opcode (UNOP_LOGICAL_NOT); }
        ;
@@ -504,7 +505,7 @@ exp :       VARIABLE
 
 exp    :       SIZEOF '(' type ')'     %prec UNARY
                        { write_exp_elt_opcode (OP_LONG);
-                         write_exp_elt_type (builtin_type_int);
+                         write_exp_elt_type (builtin_type (current_gdbarch)->builtin_int);
                          CHECK_TYPEDEF ($3);
                          write_exp_elt_longcst ((LONGEST) TYPE_LENGTH ($3));
                          write_exp_elt_opcode (OP_LONG); }
@@ -520,12 +521,12 @@ exp       :       STRING
                          while (count-- > 0)
                            {
                              write_exp_elt_opcode (OP_LONG);
-                             write_exp_elt_type (builtin_type_char);
+                             write_exp_elt_type (builtin_type (current_gdbarch)->builtin_char);
                              write_exp_elt_longcst ((LONGEST)(*sp++));
                              write_exp_elt_opcode (OP_LONG);
                            }
                          write_exp_elt_opcode (OP_LONG);
-                         write_exp_elt_type (builtin_type_char);
+                         write_exp_elt_type (builtin_type (current_gdbarch)->builtin_char);
                          write_exp_elt_longcst ((LONGEST)'\0');
                          write_exp_elt_opcode (OP_LONG);
                          write_exp_elt_opcode (OP_ARRAY);
@@ -537,14 +538,14 @@ exp       :       STRING
 /* C++.  */
 exp     :       TRUEKEYWORD    
                         { write_exp_elt_opcode (OP_LONG);
-                          write_exp_elt_type (builtin_type_bool);
+                          write_exp_elt_type (builtin_type (current_gdbarch)->builtin_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_type (builtin_type (current_gdbarch)->builtin_bool);
                           write_exp_elt_longcst ((LONGEST) 0);
                           write_exp_elt_opcode (OP_LONG); }
        ;
@@ -655,8 +656,8 @@ variable:   qualified_name
                          if (msymbol != NULL)
                            {
                              write_exp_msymbol (msymbol,
-                                                lookup_function_type (builtin_type_int),
-                                                builtin_type_int);
+                                                lookup_function_type (builtin_type (current_gdbarch)->builtin_int),
+                                                builtin_type (current_gdbarch)->builtin_int);
                            }
                          else
                            if (!have_full_symbols () && !have_partial_symbols ())
@@ -711,8 +712,8 @@ variable:   name_not_typename
                              if (msymbol != NULL)
                                {
                                  write_exp_msymbol (msymbol,
-                                                    lookup_function_type (builtin_type_int),
-                                                    builtin_type_int);
+                                                    lookup_function_type (builtin_type (current_gdbarch)->builtin_int),
+                                                    builtin_type (current_gdbarch)->builtin_int);
                                }
                              else if (!have_full_symbols () && !have_partial_symbols ())
                                error ("No symbol table is loaded.  Use the \"file\" command.");
@@ -798,68 +799,68 @@ func_mod: '(' ')'
 
 type   :       ptype
        |       typebase COLONCOLON '*'
-                       { $$ = lookup_member_type (builtin_type_int, $1); }
+                       { $$ = lookup_member_type (builtin_type (current_gdbarch)->builtin_int, $1); }
        ;
 
 typebase  /* Implements (approximately): (type-qualifier)* type-specifier */
        :       TYPENAME
                        { $$ = $1.type; }
        |       INT_KEYWORD
-                       { $$ = builtin_type_int; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_int; }
        |       LONG
-                       { $$ = builtin_type_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long; }
        |       SHORT
-                       { $$ = builtin_type_short; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_short; }
        |       LONG INT_KEYWORD
-                       { $$ = builtin_type_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long; }
        |       LONG SIGNED_KEYWORD INT_KEYWORD
-                       { $$ = builtin_type_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long; }
        |       LONG SIGNED_KEYWORD
-                       { $$ = builtin_type_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long; }
        |       SIGNED_KEYWORD LONG INT_KEYWORD
-                       { $$ = builtin_type_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long; }
        |       UNSIGNED LONG INT_KEYWORD
-                       { $$ = builtin_type_unsigned_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long; }
        |       LONG UNSIGNED INT_KEYWORD
-                       { $$ = builtin_type_unsigned_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long; }
        |       LONG UNSIGNED
-                       { $$ = builtin_type_unsigned_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long; }
        |       LONG LONG
-                       { $$ = builtin_type_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
        |       LONG LONG INT_KEYWORD
-                       { $$ = builtin_type_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
        |       LONG LONG SIGNED_KEYWORD INT_KEYWORD
-                       { $$ = builtin_type_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
        |       LONG LONG SIGNED_KEYWORD
-                       { $$ = builtin_type_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
        |       SIGNED_KEYWORD LONG LONG
-                       { $$ = builtin_type_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
        |       SIGNED_KEYWORD LONG LONG INT_KEYWORD
-                       { $$ = builtin_type_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
        |       UNSIGNED LONG LONG
-                       { $$ = builtin_type_unsigned_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long_long; }
        |       UNSIGNED LONG LONG INT_KEYWORD
-                       { $$ = builtin_type_unsigned_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long_long; }
        |       LONG LONG UNSIGNED
-                       { $$ = builtin_type_unsigned_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long_long; }
        |       LONG LONG UNSIGNED INT_KEYWORD
-                       { $$ = builtin_type_unsigned_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long_long; }
        |       SHORT INT_KEYWORD
-                       { $$ = builtin_type_short; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_short; }
        |       SHORT SIGNED_KEYWORD INT_KEYWORD
-                       { $$ = builtin_type_short; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_short; }
        |       SHORT SIGNED_KEYWORD
-                       { $$ = builtin_type_short; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_short; }
        |       UNSIGNED SHORT INT_KEYWORD
-                       { $$ = builtin_type_unsigned_short; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_short; }
        |       SHORT UNSIGNED 
-                       { $$ = builtin_type_unsigned_short; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_short; }
        |       SHORT UNSIGNED INT_KEYWORD
-                       { $$ = builtin_type_unsigned_short; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_short; }
        |       DOUBLE_KEYWORD
-                       { $$ = builtin_type_double; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_double; }
        |       LONG DOUBLE_KEYWORD
-                       { $$ = builtin_type_long_double; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long_double; }
        |       STRUCT name
                        { $$ = lookup_struct (copy_name ($2),
                                              expression_context_block); }
@@ -875,11 +876,11 @@ typebase  /* Implements (approximately): (type-qualifier)* type-specifier */
        |       UNSIGNED typename
                        { $$ = lookup_unsigned_typename (TYPE_NAME($2.type)); }
        |       UNSIGNED
-                       { $$ = builtin_type_unsigned_int; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_int; }
        |       SIGNED_KEYWORD typename
                        { $$ = lookup_signed_typename (TYPE_NAME($2.type)); }
        |       SIGNED_KEYWORD
-                       { $$ = builtin_type_int; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_int; }
                 /* It appears that this rule for templates is never
                    reduced; template recognition happens by lookahead
                    in the token processing code in yylex. */         
@@ -939,11 +940,6 @@ typebase  /* Implements (approximately): (type-qualifier)* type-specifier */
    decode_line_1), but I'm not holding my breath waiting for somebody
    to get around to cleaning this up...  */
 
-/* FIXME: carlton/2003-09-25: Currently, the only qualified type
-   symbols that we generate are nested namespaces.  Next on my TODO
-   list is to generate all nested type names properly (or at least as
-   well as possible, assuming that we're using DWARF-2).  */
-
 qualified_type: typebase COLONCOLON name
                {
                  struct type *type = $1;
@@ -953,14 +949,16 @@ qualified_type: typebase COLONCOLON name
                  memcpy (ncopy, $3.ptr, $3.length);
                  ncopy[$3.length] = '\0';
 
-                 if (TYPE_CODE (type) != TYPE_CODE_NAMESPACE)
-                   error ("`%s' is not defined as a namespace.",
+                 if (TYPE_CODE (type) != TYPE_CODE_STRUCT
+                     && TYPE_CODE (type) != TYPE_CODE_UNION
+                     && TYPE_CODE (type) != TYPE_CODE_NAMESPACE)
+                   error ("`%s' is not defined as an aggregate type.",
                           TYPE_NAME (type));
 
                  new_type = cp_lookup_nested_type (type, ncopy,
                                                    expression_context_block);
                  if (new_type == NULL)
-                   error ("No type \"%s\" in namespace \"%s\".",
+                   error ("No type \"%s\" within class or namespace \"%s\".",
                           ncopy, TYPE_NAME (type));
                  
                  $$ = new_type;
@@ -972,19 +970,19 @@ typename: TYPENAME
                {
                  $$.stoken.ptr = "int";
                  $$.stoken.length = 3;
-                 $$.type = builtin_type_int;
+                 $$.type = builtin_type (current_gdbarch)->builtin_int;
                }
        |       LONG
                {
                  $$.stoken.ptr = "long";
                  $$.stoken.length = 4;
-                 $$.type = builtin_type_long;
+                 $$.type = builtin_type (current_gdbarch)->builtin_long;
                }
        |       SHORT
                {
                  $$.stoken.ptr = "short";
                  $$.stoken.length = 5;
-                 $$.type = builtin_type_short;
+                 $$.type = builtin_type (current_gdbarch)->builtin_short;
                }
        ;
 
@@ -1076,43 +1074,48 @@ parse_number (p, len, parsed_float, putithere)
   if (parsed_float)
     {
       /* It's a float since it contains a point or an exponent.  */
-      char c;
+      char *s = malloc (len);
       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))
-       num = sscanf (p, "%g%c", (float *) &putithere->typed_val_float.dval,&c);
+       num = sscanf (p, "%g%s", (float *) &putithere->typed_val_float.dval,s);
       else if (sizeof (putithere->typed_val_float.dval) <= sizeof (double))
-       num = sscanf (p, "%lg%c", (double *) &putithere->typed_val_float.dval,&c);
+       num = sscanf (p, "%lg%s", (double *) &putithere->typed_val_float.dval,s);
       else
        {
 #ifdef SCANF_HAS_LONG_DOUBLE
-         num = sscanf (p, "%Lg%c", &putithere->typed_val_float.dval,&c);
+         num = sscanf (p, "%Lg%s", &putithere->typed_val_float.dval,s);
 #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;
-         num = sscanf (p, "%lg%c", &temp,&c);
+         num = sscanf (p, "%lg%s", &temp,s);
          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]);
-
-      if (c == 'f')
-       putithere->typed_val_float.type = builtin_type_float;
-      else if (c == 'l')
-       putithere->typed_val_float.type = builtin_type_long_double;
-      else if (isdigit (c) || c == '.')
-       putithere->typed_val_float.type = builtin_type_double;
-      else
-       return ERROR;
+
+      if (num == 1)
+       putithere->typed_val_float.type = 
+         builtin_type (current_gdbarch)->builtin_double;
+
+      if (num == 2 )
+       {
+         /* See if it has any float suffix: 'f' for float, 'l' for long 
+            double.  */
+         if (!strcasecmp (s, "f"))
+           putithere->typed_val_float.type = 
+             builtin_type (current_gdbarch)->builtin_float;
+         else if (!strcasecmp (s, "l"))
+           putithere->typed_val_float.type = 
+             builtin_type (current_gdbarch)->builtin_long_double;
+         else
+           return ERROR;
+       }
 
       return FLOAT;
     }
@@ -1226,15 +1229,15 @@ parse_number (p, len, parsed_float, putithere)
         int.  This probably should be fixed.  GCC gives a warning on
         such constants.  */
 
-      unsigned_type = builtin_type_unsigned_int;
-      signed_type = builtin_type_int;
+      unsigned_type = builtin_type (current_gdbarch)->builtin_unsigned_int;
+      signed_type = builtin_type (current_gdbarch)->builtin_int;
     }
   else if (long_p <= 1
           && (un >> (TARGET_LONG_BIT - 2)) == 0)
     {
       high_bit = ((ULONGEST)1) << (TARGET_LONG_BIT-1);
-      unsigned_type = builtin_type_unsigned_long;
-      signed_type = builtin_type_long;
+      unsigned_type = builtin_type (current_gdbarch)->builtin_unsigned_long;
+      signed_type = builtin_type (current_gdbarch)->builtin_long;
     }
   else
     {
@@ -1245,8 +1248,8 @@ parse_number (p, len, parsed_float, putithere)
       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;
+      unsigned_type = builtin_type (current_gdbarch)->builtin_unsigned_long_long;
+      signed_type = builtin_type (current_gdbarch)->builtin_long_long;
     }
 
    putithere->typed_val_int.val = n;
@@ -1340,7 +1343,7 @@ yylex ()
   tokstart = lexptr;
   /* See if it is a special token of length 3.  */
   for (i = 0; i < sizeof tokentab3 / sizeof tokentab3[0]; i++)
-    if (STREQN (tokstart, tokentab3[i].operator, 3))
+    if (strncmp (tokstart, tokentab3[i].operator, 3) == 0)
       {
        lexptr += 3;
        yylval.opcode = tokentab3[i].opcode;
@@ -1349,7 +1352,7 @@ yylex ()
 
   /* See if it is a special token of length 2.  */
   for (i = 0; i < sizeof tokentab2 / sizeof tokentab2[0]; i++)
-    if (STREQN (tokstart, tokentab2[i].operator, 2))
+    if (strncmp (tokstart, tokentab2[i].operator, 2) == 0)
       {
        lexptr += 2;
        yylval.opcode = tokentab2[i].opcode;
@@ -1398,7 +1401,7 @@ yylex ()
         }
 
       yylval.typed_val_int.val = c;
-      yylval.typed_val_int.type = builtin_type_char;
+      yylval.typed_val_int.type = builtin_type (current_gdbarch)->builtin_char;
 
       c = *lexptr++;
       if (c != '\'')
@@ -1645,52 +1648,52 @@ yylex ()
   switch (namelen)
     {
     case 8:
-      if (STREQN (tokstart, "unsigned", 8))
+      if (strncmp (tokstart, "unsigned", 8) == 0)
        return UNSIGNED;
       if (current_language->la_language == language_cplus
-         && STREQN (tokstart, "template", 8))
+         && strncmp (tokstart, "template", 8) == 0)
        return TEMPLATE;
-      if (STREQN (tokstart, "volatile", 8))
+      if (strncmp (tokstart, "volatile", 8) == 0)
        return VOLATILE_KEYWORD;
       break;
     case 6:
-      if (STREQN (tokstart, "struct", 6))
+      if (strncmp (tokstart, "struct", 6) == 0)
        return STRUCT;
-      if (STREQN (tokstart, "signed", 6))
+      if (strncmp (tokstart, "signed", 6) == 0)
        return SIGNED_KEYWORD;
-      if (STREQN (tokstart, "sizeof", 6))      
+      if (strncmp (tokstart, "sizeof", 6) == 0)
        return SIZEOF;
-      if (STREQN (tokstart, "double", 6))      
+      if (strncmp (tokstart, "double", 6) == 0)
        return DOUBLE_KEYWORD;
       break;
     case 5:
       if (current_language->la_language == language_cplus)
         {
-          if (STREQN (tokstart, "false", 5))
+          if (strncmp (tokstart, "false", 5) == 0)
             return FALSEKEYWORD;
-          if (STREQN (tokstart, "class", 5))
+          if (strncmp (tokstart, "class", 5) == 0)
             return CLASS;
         }
-      if (STREQN (tokstart, "union", 5))
+      if (strncmp (tokstart, "union", 5) == 0)
        return UNION;
-      if (STREQN (tokstart, "short", 5))
+      if (strncmp (tokstart, "short", 5) == 0)
        return SHORT;
-      if (STREQN (tokstart, "const", 5))
+      if (strncmp (tokstart, "const", 5) == 0)
        return CONST_KEYWORD;
       break;
     case 4:
-      if (STREQN (tokstart, "enum", 4))
+      if (strncmp (tokstart, "enum", 4) == 0)
        return ENUM;
-      if (STREQN (tokstart, "long", 4))
+      if (strncmp (tokstart, "long", 4) == 0)
        return LONG;
       if (current_language->la_language == language_cplus)
           {
-            if (STREQN (tokstart, "true", 4))
+            if (strncmp (tokstart, "true", 4) == 0)
               return TRUEKEYWORD;
           }
       break;
     case 3:
-      if (STREQN (tokstart, "int", 3))
+      if (strncmp (tokstart, "int", 3) == 0)
        return INT_KEYWORD;
       break;
     default:
@@ -1776,7 +1779,10 @@ yylex ()
          yylval.tsym.type = SYMBOL_TYPE (sym);
          return TYPENAME;
         }
-    if ((yylval.tsym.type = lookup_primitive_typename (tmp)) != 0)
+    yylval.tsym.type
+      = language_lookup_primitive_type_by_name (current_language,
+                                               current_gdbarch, tmp);
+    if (yylval.tsym.type != NULL)
       return TYPENAME;
 
     /* Input names that aren't symbols but ARE valid hex numbers,
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