gdb/
[deliverable/binutils-gdb.git] / gdb / c-lang.c
index 308f8d46c6bc1cfe1349a07e577fc2c141bac9d8..8b5410f8a6b6eb0ef8fdbbc6b0345e4e3c01016b 100644 (file)
@@ -1,11 +1,13 @@
 /* C language support routines for GDB, the GNU debugger.
-   Copyright 1992, 1993, 1994 Free Software Foundation, Inc.
+
+   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2002, 2003,
+   2004, 2005, 2007, 2008, 2009 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -14,9 +16,7 @@
    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.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "defs.h"
 #include "symtab.h"
 #include "parser-defs.h"
 #include "language.h"
 #include "c-lang.h"
-
-extern void _initialize_c_language PARAMS ((void));
-static void c_emit_char PARAMS ((int c, GDB_FILE * stream, int quoter));
+#include "valprint.h"
+#include "macroscope.h"
+#include "gdb_assert.h"
+#include "charset.h"
+#include "gdb_string.h"
+#include "demangle.h"
+#include "cp-abi.h"
+#include "cp-support.h"
+
+extern void _initialize_c_language (void);
+static void c_emit_char (int c, struct ui_file * stream, int quoter);
 
 /* Print the character C on STREAM as part of the contents of a literal
    string whose delimiter is QUOTER.  Note that that format for printing
    characters and strings is language specific. */
 
 static void
-c_emit_char (c, stream, quoter)
-     register int c;
-     GDB_FILE *stream;
-     int quoter;
+c_emit_char (int c, struct ui_file *stream, int quoter)
 {
+  const char *escape;
+  int host_char;
+
   c &= 0xFF;                   /* Avoid sign bit follies */
 
-  if (PRINT_LITERAL_FORM (c))
+  escape = c_target_char_has_backslash_escape (c);
+  if (escape)
     {
-      if (c == '\\' || c == quoter)
-       {
-         fputs_filtered ("\\", stream);
-       }
-      fprintf_filtered (stream, "%c", c);
+      if (quoter == '"' && strcmp (escape, "0") == 0)
+       /* Print nulls embedded in double quoted strings as \000 to
+          prevent ambiguity.  */
+       fprintf_filtered (stream, "\\000");
+      else
+       fprintf_filtered (stream, "\\%s", escape);
     }
-  else
+  else if (target_char_to_host (c, &host_char)
+           && host_char_print_literally (host_char))
     {
-      switch (c)
-       {
-       case '\n':
-         fputs_filtered ("\\n", stream);
-         break;
-       case '\b':
-         fputs_filtered ("\\b", stream);
-         break;
-       case '\t':
-         fputs_filtered ("\\t", stream);
-         break;
-       case '\f':
-         fputs_filtered ("\\f", stream);
-         break;
-       case '\r':
-         fputs_filtered ("\\r", stream);
-         break;
-       case '\033':
-         fputs_filtered ("\\e", stream);
-         break;
-       case '\007':
-         fputs_filtered ("\\a", stream);
-         break;
-       default:
-         fprintf_filtered (stream, "\\%.3o", (unsigned int) c);
-         break;
-       }
+      if (host_char == '\\' || host_char == quoter)
+        fputs_filtered ("\\", stream);
+      fprintf_filtered (stream, "%c", host_char);
     }
+  else
+    fprintf_filtered (stream, "\\%.3o", (unsigned int) c);
 }
 
 void
-c_printchar (c, stream)
-     int c;
-     GDB_FILE *stream;
+c_printchar (int c, struct ui_file *stream)
 {
   fputc_filtered ('\'', stream);
   LA_EMIT_CHAR (c, stream, '\'');
@@ -98,27 +85,22 @@ c_printchar (c, stream)
    printing LENGTH characters, or if FORCE_ELLIPSES.  */
 
 void
-c_printstr (stream, string, length, width, force_ellipses)
-     GDB_FILE *stream;
-     char *string;
-     unsigned int length;
-     int width;
-     int force_ellipses;
+c_printstr (struct ui_file *stream, const gdb_byte *string,
+           unsigned int length, int width, int force_ellipses,
+           const struct value_print_options *options)
 {
-  register unsigned int i;
+  unsigned int i;
   unsigned int things_printed = 0;
   int in_quotes = 0;
   int need_comma = 0;
-  extern int inspect_it;
-  extern int repeat_count_threshold;
-  extern int print_max;
 
   /* If the string was not truncated due to `set print elements', and
      the last byte of it is a null, we don't print that, in traditional C
      style.  */
   if (!force_ellipses
       && length > 0
-  && extract_unsigned_integer (string + (length - 1) * width, width) == '\0')
+      && (extract_unsigned_integer (string + (length - 1) * width, width)
+          == '\0'))
     length--;
 
   if (length == 0)
@@ -127,7 +109,7 @@ c_printstr (stream, string, length, width, force_ellipses)
       return;
     }
 
-  for (i = 0; i < length && things_printed < print_max; ++i)
+  for (i = 0; i < length && things_printed < options->print_max; ++i)
     {
       /* Position of the character we are examining
          to see whether it is repeated.  */
@@ -156,27 +138,27 @@ c_printstr (stream, string, length, width, force_ellipses)
          ++reps;
        }
 
-      if (reps > repeat_count_threshold)
+      if (reps > options->repeat_count_threshold)
        {
          if (in_quotes)
            {
-             if (inspect_it)
+             if (options->inspect_it)
                fputs_filtered ("\\\", ", stream);
              else
                fputs_filtered ("\", ", stream);
              in_quotes = 0;
            }
          LA_PRINT_CHAR (current_char, stream);
-         fprintf_filtered (stream, " <repeats %u times>", reps);
+         fprintf_filtered (stream, _(" <repeats %u times>"), reps);
          i = rep1 - 1;
-         things_printed += repeat_count_threshold;
+         things_printed += options->repeat_count_threshold;
          need_comma = 1;
        }
       else
        {
          if (!in_quotes)
            {
-             if (inspect_it)
+             if (options->inspect_it)
                fputs_filtered ("\\\"", stream);
              else
                fputs_filtered ("\"", stream);
@@ -190,7 +172,7 @@ c_printstr (stream, string, length, width, force_ellipses)
   /* Terminate the quotes if necessary.  */
   if (in_quotes)
     {
-      if (inspect_it)
+      if (options->inspect_it)
        fputs_filtered ("\\\"", stream);
       else
        fputs_filtered ("\"", stream);
@@ -200,161 +182,126 @@ c_printstr (stream, string, length, width, force_ellipses)
     fputs_filtered ("...", stream);
 }
 
-/* Create a fundamental C type using default reasonable for the current
-   target machine.
-
-   Some object/debugging file formats (DWARF version 1, COFF, etc) do not
-   define fundamental types such as "int" or "double".  Others (stabs or
-   DWARF version 2, etc) do define fundamental types.  For the formats which
-   don't provide fundamental types, gdb can create such types using this
-   function.
-
-   FIXME:  Some compilers distinguish explicitly signed integral types
-   (signed short, signed int, signed long) from "regular" integral types
-   (short, int, long) in the debugging information.  There is some dis-
-   agreement as to how useful this feature is.  In particular, gcc does
-   not support this.  Also, only some debugging formats allow the
-   distinction to be passed on to a debugger.  For now, we always just
-   use "short", "int", or "long" as the type name, for both the implicit
-   and explicitly signed types.  This also makes life easier for the
-   gdb test suite since we don't have to account for the differences
-   in output depending upon what the compiler and debugging format
-   support.  We will probably have to re-examine the issue when gdb
-   starts taking it's fundamental type information directly from the
-   debugging information supplied by the compiler.  fnf@cygnus.com */
-
-struct type *
-c_create_fundamental_type (objfile, typeid)
-     struct objfile *objfile;
-     int typeid;
+/* Obtain a C string from the inferior storing it in a newly allocated
+   buffer in BUFFER, which should be freed by the caller.  The string is
+   read until a null character is found. If VALUE is an array with known
+   length, the function will not read past the end of the array.  LENGTH
+   will contain the size of the string in bytes (not counting the null
+   character).
+
+   Assumes strings are terminated by a null character.  The size of a character
+   is determined by the length of the target type of the pointer or array.
+   This means that a null byte present in a multi-byte character will not
+   terminate the string unless the whole character is null.
+
+   CHARSET is always set to the target charset.  */
+
+void
+c_get_string (struct value *value, gdb_byte **buffer, int *length,
+             const char **charset)
 {
-  register struct type *type = NULL;
+  int err, width;
+  unsigned int fetchlimit;
+  struct type *type = check_typedef (value_type (value));
+  struct type *element_type = TYPE_TARGET_TYPE (type);
+
+  if (element_type == NULL)
+    goto error;
 
-  switch (typeid)
+  if (TYPE_CODE (type) == TYPE_CODE_ARRAY)
+    {
+      /* If we know the size of the array, we can use it as a limit on the
+        number of characters to be fetched.  */
+      if (TYPE_NFIELDS (type) == 1
+         && TYPE_CODE (TYPE_FIELD_TYPE (type, 0)) == TYPE_CODE_RANGE)
+       {
+         LONGEST low_bound, high_bound;
+
+         get_discrete_bounds (TYPE_FIELD_TYPE (type, 0),
+                              &low_bound, &high_bound);
+         fetchlimit = high_bound - low_bound + 1;
+       }
+      else
+       fetchlimit = UINT_MAX;
+    }
+  else if (TYPE_CODE (type) == TYPE_CODE_PTR)
+    fetchlimit = UINT_MAX;
+  else
+    /* We work only with arrays and pointers.  */
+    goto error;
+
+  element_type = check_typedef (element_type);
+  if (TYPE_CODE (element_type) != TYPE_CODE_INT
+      && TYPE_CODE (element_type) != TYPE_CODE_CHAR)
+    /* If the elements are not integers or characters, we don't consider it
+       a string.  */
+    goto error;
+
+  width = TYPE_LENGTH (element_type);
+
+  /* If the string lives in GDB's memory intead of the inferior's, then we
+     just need to copy it to BUFFER.  Also, since such strings are arrays
+     with known size, FETCHLIMIT will hold the size of the array.  */
+  if ((VALUE_LVAL (value) == not_lval
+       || VALUE_LVAL (value) == lval_internalvar)
+      && fetchlimit != UINT_MAX)
+    {
+      int i;
+      const gdb_byte *contents = value_contents (value);
+
+      /* Look for a null character.  */
+      for (i = 0; i < fetchlimit; i++)
+       if (extract_unsigned_integer (contents + i * width, width) == 0)
+         break;
+
+      /* I is now either the number of non-null characters, or FETCHLIMIT.  */
+      *length = i * width;
+      *buffer = xmalloc (*length);
+      memcpy (*buffer, contents, *length);
+      err = 0;
+    }
+  else
     {
-    default:
-      /* FIXME:  For now, if we are asked to produce a type not in this
-         language, create the equivalent of a C integer type with the
-         name "<?type?>".  When all the dust settles from the type
-         reconstruction work, this should probably become an error. */
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_INT_BIT / TARGET_CHAR_BIT,
-                       0, "<?type?>", objfile);
-      warning ("internal error: no C/C++ fundamental type %d", typeid);
-      break;
-    case FT_VOID:
-      type = init_type (TYPE_CODE_VOID,
-                       TARGET_CHAR_BIT / TARGET_CHAR_BIT,
-                       0, "void", objfile);
-      break;
-    case FT_BOOLEAN:
-      type = init_type (TYPE_CODE_BOOL,
-                       TARGET_CHAR_BIT / TARGET_CHAR_BIT,
-                       0, "bool", objfile);
-
-      break;
-    case FT_CHAR:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_CHAR_BIT / TARGET_CHAR_BIT,
-                       0, "char", objfile);
-      TYPE_FLAGS (type) |= TYPE_FLAG_NOSIGN;
-      break;
-    case FT_SIGNED_CHAR:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_CHAR_BIT / TARGET_CHAR_BIT,
-                       0, "signed char", objfile);
-      break;
-    case FT_UNSIGNED_CHAR:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_CHAR_BIT / TARGET_CHAR_BIT,
-                       TYPE_FLAG_UNSIGNED, "unsigned char", objfile);
-      break;
-    case FT_SHORT:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_SHORT_BIT / TARGET_CHAR_BIT,
-                       0, "short", objfile);
-      break;
-    case FT_SIGNED_SHORT:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_SHORT_BIT / TARGET_CHAR_BIT,
-                       0, "short", objfile);   /* FIXME-fnf */
-      break;
-    case FT_UNSIGNED_SHORT:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_SHORT_BIT / TARGET_CHAR_BIT,
-                       TYPE_FLAG_UNSIGNED, "unsigned short", objfile);
-      break;
-    case FT_INTEGER:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_INT_BIT / TARGET_CHAR_BIT,
-                       0, "int", objfile);
-      break;
-    case FT_SIGNED_INTEGER:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_INT_BIT / TARGET_CHAR_BIT,
-                       0, "int", objfile);     /* FIXME -fnf */
-      break;
-    case FT_UNSIGNED_INTEGER:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_INT_BIT / TARGET_CHAR_BIT,
-                       TYPE_FLAG_UNSIGNED, "unsigned int", objfile);
-      break;
-    case FT_LONG:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_LONG_BIT / TARGET_CHAR_BIT,
-                       0, "long", objfile);
-      break;
-    case FT_SIGNED_LONG:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_LONG_BIT / TARGET_CHAR_BIT,
-                       0, "long", objfile);    /* FIXME -fnf */
-      break;
-    case FT_UNSIGNED_LONG:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_LONG_BIT / TARGET_CHAR_BIT,
-                       TYPE_FLAG_UNSIGNED, "unsigned long", objfile);
-      break;
-    case FT_LONG_LONG:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
-                       0, "long long", objfile);
-      break;
-    case FT_SIGNED_LONG_LONG:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
-                       0, "signed long long", objfile);
-      break;
-    case FT_UNSIGNED_LONG_LONG:
-      type = init_type (TYPE_CODE_INT,
-                       TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
-                       TYPE_FLAG_UNSIGNED, "unsigned long long", objfile);
-      break;
-    case FT_FLOAT:
-      type = init_type (TYPE_CODE_FLT,
-                       TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
-                       0, "float", objfile);
-      break;
-    case FT_DBL_PREC_FLOAT:
-      type = init_type (TYPE_CODE_FLT,
-                       TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
-                       0, "double", objfile);
-      break;
-    case FT_EXT_PREC_FLOAT:
-      type = init_type (TYPE_CODE_FLT,
-                       TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
-                       0, "long double", objfile);
-      break;
-    case FT_TEMPLATE_ARG:
-      type = init_type (TYPE_CODE_TEMPLATE_ARG,
-                       0,
-                       0, "<template arg>", objfile);
-
-      break;
+      err = read_string (value_as_address (value), -1, width, fetchlimit,
+                        buffer, length);
+      if (err)
+       {
+         xfree (buffer);
+         error (_("Error reading string from inferior: %s"),
+                safe_strerror (err));
+       }
     }
-  return (type);
+
+  /* If the last character is null, subtract it from LENGTH.  */
+  if (*length > 0
+      && extract_unsigned_integer (*buffer + *length - width, width) == 0)
+    *length -= width;
+
+  *charset = target_charset ();
+
+  return;
+
+ error:
+  {
+    char *type_str;
+
+    type_str = type_to_string (type);
+    if (type_str)
+      {
+       make_cleanup (xfree, type_str);
+       error (_("Trying to read string with inappropriate type `%s'."),
+              type_str);
+      }
+    else
+      error (_("Trying to read string with inappropriate type."));
+  }
 }
+
 \f
+/* Preprocessing and parsing C and C++ expressions.  */
 
+
+\f
 /* Table mapping opcodes into strings for printing operators
    and precedences of the operators.  */
 
@@ -389,109 +336,220 @@ const struct op_print c_op_print_tab[] =
   {"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0},
   {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0},
   {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0},
-    /* C++  */
-  {"::", BINOP_SCOPE, PREC_PREFIX, 0},
   {NULL, 0, 0, 0}
 };
 \f
-struct type **CONST_PTR (c_builtin_types[]) =
-{
-  &builtin_type_int,
-    &builtin_type_long,
-    &builtin_type_short,
-    &builtin_type_char,
-    &builtin_type_float,
-    &builtin_type_double,
-    &builtin_type_void,
-    &builtin_type_long_long,
-    &builtin_type_signed_char,
-    &builtin_type_unsigned_char,
-    &builtin_type_unsigned_short,
-    &builtin_type_unsigned_int,
-    &builtin_type_unsigned_long,
-    &builtin_type_unsigned_long_long,
-    &builtin_type_long_double,
-    &builtin_type_complex,
-    &builtin_type_double_complex,
-    0
+enum c_primitive_types {
+  c_primitive_type_int,
+  c_primitive_type_long,
+  c_primitive_type_short,
+  c_primitive_type_char,
+  c_primitive_type_float,
+  c_primitive_type_double,
+  c_primitive_type_void,
+  c_primitive_type_long_long,
+  c_primitive_type_signed_char,
+  c_primitive_type_unsigned_char,
+  c_primitive_type_unsigned_short,
+  c_primitive_type_unsigned_int,
+  c_primitive_type_unsigned_long,
+  c_primitive_type_unsigned_long_long,
+  c_primitive_type_long_double,
+  c_primitive_type_complex,
+  c_primitive_type_double_complex,
+  c_primitive_type_decfloat,
+  c_primitive_type_decdouble,
+  c_primitive_type_declong,
+  nr_c_primitive_types
 };
 
+void
+c_language_arch_info (struct gdbarch *gdbarch,
+                     struct language_arch_info *lai)
+{
+  const struct builtin_type *builtin = builtin_type (gdbarch);
+  lai->string_char_type = builtin->builtin_char;
+  lai->primitive_type_vector
+    = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_c_primitive_types + 1,
+                             struct type *);
+  lai->primitive_type_vector [c_primitive_type_int] = builtin->builtin_int;
+  lai->primitive_type_vector [c_primitive_type_long] = builtin->builtin_long;
+  lai->primitive_type_vector [c_primitive_type_short] = builtin->builtin_short;
+  lai->primitive_type_vector [c_primitive_type_char] = builtin->builtin_char;
+  lai->primitive_type_vector [c_primitive_type_float] = builtin->builtin_float;
+  lai->primitive_type_vector [c_primitive_type_double] = builtin->builtin_double;
+  lai->primitive_type_vector [c_primitive_type_void] = builtin->builtin_void;
+  lai->primitive_type_vector [c_primitive_type_long_long] = builtin->builtin_long_long;
+  lai->primitive_type_vector [c_primitive_type_signed_char] = builtin->builtin_signed_char;
+  lai->primitive_type_vector [c_primitive_type_unsigned_char] = builtin->builtin_unsigned_char;
+  lai->primitive_type_vector [c_primitive_type_unsigned_short] = builtin->builtin_unsigned_short;
+  lai->primitive_type_vector [c_primitive_type_unsigned_int] = builtin->builtin_unsigned_int;
+  lai->primitive_type_vector [c_primitive_type_unsigned_long] = builtin->builtin_unsigned_long;
+  lai->primitive_type_vector [c_primitive_type_unsigned_long_long] = builtin->builtin_unsigned_long_long;
+  lai->primitive_type_vector [c_primitive_type_long_double] = builtin->builtin_long_double;
+  lai->primitive_type_vector [c_primitive_type_complex] = builtin->builtin_complex;
+  lai->primitive_type_vector [c_primitive_type_double_complex] = builtin->builtin_double_complex;
+  lai->primitive_type_vector [c_primitive_type_decfloat] = builtin->builtin_decfloat;
+  lai->primitive_type_vector [c_primitive_type_decdouble] = builtin->builtin_decdouble;
+  lai->primitive_type_vector [c_primitive_type_declong] = builtin->builtin_declong;
+
+  lai->bool_type_default = builtin->builtin_int;
+}
+
 const struct language_defn c_language_defn =
 {
   "c",                         /* Language name */
   language_c,
-  c_builtin_types,
   range_check_off,
   type_check_off,
+  case_sensitive_on,
+  array_row_major,
+  macro_expansion_c,
+  &exp_descriptor_standard,
   c_parse,
   c_error,
-  evaluate_subexp_standard,
+  null_post_parser,
   c_printchar,                 /* Print a character constant */
   c_printstr,                  /* Function to print string constant */
   c_emit_char,                 /* Print a single char */
-  c_create_fundamental_type,   /* Create fundamental type in this language */
   c_print_type,                        /* Print a type using appropriate syntax */
+  c_print_typedef,             /* Print a typedef using appropriate syntax */
   c_val_print,                 /* Print a value using appropriate syntax */
   c_value_print,               /* Print a top-level value */
-  {"", "", "", ""},            /* Binary format info */
-  {"0%lo", "0", "o", ""},      /* Octal format info */
-  {"%ld", "", "d", ""},                /* Decimal format info */
-  {"0x%lx", "0x", "x", ""},    /* Hex format info */
+  NULL,                                /* Language specific skip_trampoline */
+  NULL,                                /* name_of_this */
+  basic_lookup_symbol_nonlocal,        /* lookup_symbol_nonlocal */
+  basic_lookup_transparent_type,/* lookup_transparent_type */
+  NULL,                                /* Language specific symbol demangler */
+  NULL,                                /* Language specific class_name_from_physname */
   c_op_print_tab,              /* expression operators for printing */
   1,                           /* c-style arrays */
   0,                           /* String lower bound */
-  &builtin_type_char,          /* Type of string elements */
+  default_word_break_characters,
+  default_make_symbol_completion_list,
+  c_language_arch_info,
+  default_print_array_index,
+  default_pass_by_reference,
+  c_get_string,
   LANG_MAGIC
 };
 
-struct type **const (cplus_builtin_types[]) =
-{
-  &builtin_type_int,
-    &builtin_type_long,
-    &builtin_type_short,
-    &builtin_type_char,
-    &builtin_type_float,
-    &builtin_type_double,
-    &builtin_type_void,
-    &builtin_type_long_long,
-    &builtin_type_signed_char,
-    &builtin_type_unsigned_char,
-    &builtin_type_unsigned_short,
-    &builtin_type_unsigned_int,
-    &builtin_type_unsigned_long,
-    &builtin_type_unsigned_long_long,
-    &builtin_type_long_double,
-    &builtin_type_complex,
-    &builtin_type_double_complex,
-    &builtin_type_bool,
-    0
+enum cplus_primitive_types {
+  cplus_primitive_type_int,
+  cplus_primitive_type_long,
+  cplus_primitive_type_short,
+  cplus_primitive_type_char,
+  cplus_primitive_type_float,
+  cplus_primitive_type_double,
+  cplus_primitive_type_void,
+  cplus_primitive_type_long_long,
+  cplus_primitive_type_signed_char,
+  cplus_primitive_type_unsigned_char,
+  cplus_primitive_type_unsigned_short,
+  cplus_primitive_type_unsigned_int,
+  cplus_primitive_type_unsigned_long,
+  cplus_primitive_type_unsigned_long_long,
+  cplus_primitive_type_long_double,
+  cplus_primitive_type_complex,
+  cplus_primitive_type_double_complex,
+  cplus_primitive_type_bool,
+  cplus_primitive_type_decfloat,
+  cplus_primitive_type_decdouble,
+  cplus_primitive_type_declong,
+  nr_cplus_primitive_types
 };
 
+static void
+cplus_language_arch_info (struct gdbarch *gdbarch,
+                         struct language_arch_info *lai)
+{
+  const struct builtin_type *builtin = builtin_type (gdbarch);
+  lai->string_char_type = builtin->builtin_char;
+  lai->primitive_type_vector
+    = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_cplus_primitive_types + 1,
+                             struct type *);
+  lai->primitive_type_vector [cplus_primitive_type_int]
+    = builtin->builtin_int;
+  lai->primitive_type_vector [cplus_primitive_type_long]
+    = builtin->builtin_long;
+  lai->primitive_type_vector [cplus_primitive_type_short]
+    = builtin->builtin_short;
+  lai->primitive_type_vector [cplus_primitive_type_char]
+    = builtin->builtin_char;
+  lai->primitive_type_vector [cplus_primitive_type_float]
+    = builtin->builtin_float;
+  lai->primitive_type_vector [cplus_primitive_type_double]
+    = builtin->builtin_double;
+  lai->primitive_type_vector [cplus_primitive_type_void]
+    = builtin->builtin_void;
+  lai->primitive_type_vector [cplus_primitive_type_long_long]
+    = builtin->builtin_long_long;
+  lai->primitive_type_vector [cplus_primitive_type_signed_char]
+    = builtin->builtin_signed_char;
+  lai->primitive_type_vector [cplus_primitive_type_unsigned_char]
+    = builtin->builtin_unsigned_char;
+  lai->primitive_type_vector [cplus_primitive_type_unsigned_short]
+    = builtin->builtin_unsigned_short;
+  lai->primitive_type_vector [cplus_primitive_type_unsigned_int]
+    = builtin->builtin_unsigned_int;
+  lai->primitive_type_vector [cplus_primitive_type_unsigned_long]
+    = builtin->builtin_unsigned_long;
+  lai->primitive_type_vector [cplus_primitive_type_unsigned_long_long]
+    = builtin->builtin_unsigned_long_long;
+  lai->primitive_type_vector [cplus_primitive_type_long_double]
+    = builtin->builtin_long_double;
+  lai->primitive_type_vector [cplus_primitive_type_complex]
+    = builtin->builtin_complex;
+  lai->primitive_type_vector [cplus_primitive_type_double_complex]
+    = builtin->builtin_double_complex;
+  lai->primitive_type_vector [cplus_primitive_type_bool]
+    = builtin->builtin_bool;
+  lai->primitive_type_vector [cplus_primitive_type_decfloat]
+    = builtin->builtin_decfloat;
+  lai->primitive_type_vector [cplus_primitive_type_decdouble]
+    = builtin->builtin_decdouble;
+  lai->primitive_type_vector [cplus_primitive_type_declong]
+    = builtin->builtin_declong;
+
+  lai->bool_type_symbol = "bool";
+  lai->bool_type_default = builtin->builtin_bool;
+}
+
 const struct language_defn cplus_language_defn =
 {
   "c++",                       /* Language name */
   language_cplus,
-  cplus_builtin_types,
   range_check_off,
   type_check_off,
+  case_sensitive_on,
+  array_row_major,
+  macro_expansion_c,
+  &exp_descriptor_standard,
   c_parse,
   c_error,
-  evaluate_subexp_standard,
+  null_post_parser,
   c_printchar,                 /* Print a character constant */
   c_printstr,                  /* Function to print string constant */
   c_emit_char,                 /* Print a single char */
-  c_create_fundamental_type,   /* Create fundamental type in this language */
   c_print_type,                        /* Print a type using appropriate syntax */
+  c_print_typedef,             /* Print a typedef using appropriate syntax */
   c_val_print,                 /* Print a value using appropriate syntax */
   c_value_print,               /* Print a top-level value */
-  {"", "", "", ""},            /* Binary format info */
-  {"0%lo", "0", "o", ""},      /* Octal format info */
-  {"%ld", "", "d", ""},                /* Decimal format info */
-  {"0x%lx", "0x", "x", ""},    /* Hex format info */
+  cplus_skip_trampoline,       /* Language specific skip_trampoline */
+  "this",                       /* name_of_this */
+  cp_lookup_symbol_nonlocal,   /* lookup_symbol_nonlocal */
+  cp_lookup_transparent_type,   /* lookup_transparent_type */
+  cplus_demangle,              /* Language specific symbol demangler */
+  cp_class_name_from_physname,  /* Language specific class_name_from_physname */
   c_op_print_tab,              /* expression operators for printing */
   1,                           /* c-style arrays */
   0,                           /* String lower bound */
-  &builtin_type_char,          /* Type of string elements */
+  default_word_break_characters,
+  default_make_symbol_completion_list,
+  cplus_language_arch_info,
+  default_print_array_index,
+  cp_pass_by_reference,
+  c_get_string,
   LANG_MAGIC
 };
 
@@ -499,34 +557,88 @@ const struct language_defn asm_language_defn =
 {
   "asm",                       /* Language name */
   language_asm,
-  c_builtin_types,
   range_check_off,
   type_check_off,
+  case_sensitive_on,
+  array_row_major,
+  macro_expansion_c,
+  &exp_descriptor_standard,
+  c_parse,
+  c_error,
+  null_post_parser,
+  c_printchar,                 /* Print a character constant */
+  c_printstr,                  /* Function to print string constant */
+  c_emit_char,                 /* Print a single char */
+  c_print_type,                        /* Print a type using appropriate syntax */
+  c_print_typedef,             /* Print a typedef using appropriate syntax */
+  c_val_print,                 /* Print a value using appropriate syntax */
+  c_value_print,               /* Print a top-level value */
+  NULL,                                /* Language specific skip_trampoline */
+  NULL,                                /* name_of_this */
+  basic_lookup_symbol_nonlocal,        /* lookup_symbol_nonlocal */
+  basic_lookup_transparent_type,/* lookup_transparent_type */
+  NULL,                                /* Language specific symbol demangler */
+  NULL,                                /* Language specific class_name_from_physname */
+  c_op_print_tab,              /* expression operators for printing */
+  1,                           /* c-style arrays */
+  0,                           /* String lower bound */
+  default_word_break_characters,
+  default_make_symbol_completion_list,
+  c_language_arch_info, /* FIXME: la_language_arch_info.  */
+  default_print_array_index,
+  default_pass_by_reference,
+  c_get_string,
+  LANG_MAGIC
+};
+
+/* The following language_defn does not represent a real language.
+   It just provides a minimal support a-la-C that should allow users
+   to do some simple operations when debugging applications that use
+   a language currently not supported by GDB.  */
+
+const struct language_defn minimal_language_defn =
+{
+  "minimal",                   /* Language name */
+  language_minimal,
+  range_check_off,
+  type_check_off,
+  case_sensitive_on,
+  array_row_major,
+  macro_expansion_c,
+  &exp_descriptor_standard,
   c_parse,
   c_error,
-  evaluate_subexp_standard,
+  null_post_parser,
   c_printchar,                 /* Print a character constant */
   c_printstr,                  /* Function to print string constant */
   c_emit_char,                 /* Print a single char */
-  c_create_fundamental_type,   /* Create fundamental type in this language */
   c_print_type,                        /* Print a type using appropriate syntax */
+  c_print_typedef,             /* Print a typedef using appropriate syntax */
   c_val_print,                 /* Print a value using appropriate syntax */
   c_value_print,               /* Print a top-level value */
-  {"", "", "", ""},            /* Binary format info */
-  {"0%lo", "0", "o", ""},      /* Octal format info */
-  {"%ld", "", "d", ""},                /* Decimal format info */
-  {"0x%lx", "0x", "x", ""},    /* Hex format info */
+  NULL,                                /* Language specific skip_trampoline */
+  NULL,                                /* name_of_this */
+  basic_lookup_symbol_nonlocal,        /* lookup_symbol_nonlocal */
+  basic_lookup_transparent_type,/* lookup_transparent_type */
+  NULL,                                /* Language specific symbol demangler */
+  NULL,                                /* Language specific class_name_from_physname */
   c_op_print_tab,              /* expression operators for printing */
   1,                           /* c-style arrays */
   0,                           /* String lower bound */
-  &builtin_type_char,          /* Type of string elements */
+  default_word_break_characters,
+  default_make_symbol_completion_list,
+  c_language_arch_info,
+  default_print_array_index,
+  default_pass_by_reference,
+  c_get_string,
   LANG_MAGIC
 };
 
 void
-_initialize_c_language ()
+_initialize_c_language (void)
 {
   add_language (&c_language_defn);
   add_language (&cplus_language_defn);
   add_language (&asm_language_defn);
+  add_language (&minimal_language_defn);
 }
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