* dwarf2read.c (dwarf2_symbol_mark_computed): Handle corrupted
[platform/upstream/binutils.git] / gdb / c-exp.y
index 0c279db..1955fc0 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
+   Copyright (C) 1986, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+   1998, 1999, 2000, 2003, 2004, 2006
    Free Software Foundation, Inc.
 
 This file is part of GDB.
@@ -17,7 +17,8 @@ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.  */
 
 /* Parse a C expression from text in a string,
    and return the result as a  struct expression  pointer.
@@ -53,9 +54,6 @@ 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 +257,10 @@ 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 +506,7 @@ 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 +522,12 @@ 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 +539,14 @@ 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 +657,8 @@ 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 ())
@@ -704,15 +706,15 @@ variable: name_not_typename
                          else
                            {
                              struct minimal_symbol *msymbol;
-                             register char *arg = copy_name ($1.stoken);
+                             char *arg = copy_name ($1.stoken);
 
                              msymbol =
                                lookup_minimal_symbol (arg, NULL, NULL);
                              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 +800,68 @@ 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 +877,11 @@ 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 +941,6 @@ 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 +950,16 @@ 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));
                  
                  $$ = new_type;
@@ -972,19 +971,19 @@ typename: TYPENAME
                {
                  $$.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;
                }
        ;
 
@@ -1047,20 +1046,20 @@ name_not_typename :     NAME
 
 static int
 parse_number (p, len, parsed_float, putithere)
-     register char *p;
-     register int len;
+     char *p;
+     int len;
      int parsed_float;
      YYSTYPE *putithere;
 {
   /* FIXME: Shouldn't these be unsigned?  We don't deal with negative values
      here, and we do kind of silly things like cast to unsigned.  */
-  register LONGEST n = 0;
-  register LONGEST prevn = 0;
+  LONGEST n = 0;
+  LONGEST prevn = 0;
   ULONGEST un;
 
-  register int i = 0;
-  register int c;
-  register int base = input_radix;
+  int i = 0;
+  int c;
+  int base = input_radix;
   int unsigned_p = 0;
 
   /* Number of "L" suffixes encountered.  */
@@ -1076,43 +1075,32 @@ 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);
-      else if (sizeof (putithere->typed_val_float.dval) <= sizeof (double))
-       num = sscanf (p, "%lg%c", (double *) &putithere->typed_val_float.dval,&c);
-      else
+      num = sscanf (p, DOUBLEST_SCAN_FORMAT "%s",
+                   &putithere->typed_val_float.dval, s);
+      p[len] = saved_char;     /* restore the input stream */
+
+      if (num == 1)
+       putithere->typed_val_float.type = 
+         builtin_type (current_gdbarch)->builtin_double;
+
+      if (num == 2 )
        {
-#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;
-         num = sscanf (p, "%lg%c", &temp,&c);
-         putithere->typed_val_float.dval = temp;
-#endif
+         /* 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;
        }
-      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;
 
       return FLOAT;
     }
@@ -1226,15 +1214,15 @@ 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 +1233,8 @@ 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 +1328,7 @@ 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 +1337,7 @@ 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 +1386,7 @@ 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 != '\'')
@@ -1457,7 +1445,7 @@ yylex ()
       {
        /* It's a number.  */
        int got_dot = 0, got_e = 0, toktype;
-       register char *p = tokstart;
+       char *p = tokstart;
        int hex = input_radix > 10;
 
        if (c == '0' && (p[1] == 'x' || p[1] == 'X'))
@@ -1645,52 +1633,52 @@ 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 +1764,10 @@ 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,