gdb/c-valprint.c - third_party/binutils-gdb - Git at Google

 /* Support for printing C values for GDB, the GNU debugger.
    Copyright 1986, 1988, 1989, 1991-1997, 2000
    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
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    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.  */

 #include "defs.h"
 #include "symtab.h"
 #include "gdbtypes.h"
 #include "expression.h"
 #include "value.h"
 #include "demangle.h"
 #include "valprint.h"
 #include "language.h"
 #include "c-lang.h"


 /* Print data of type TYPE located at VALADDR (within GDB), which came from
    the inferior at address ADDRESS, onto stdio stream STREAM according to
    FORMAT (a letter or 0 for natural format).  The data at VALADDR is in
    target byte order.

    If the data are a string pointer, returns the number of string characters
    printed.

    If DEREF_REF is nonzero, then dereference references, otherwise just print
    them like pointers.

    The PRETTY parameter controls prettyprinting.  */

 int
 c_val_print (type, valaddr, embedded_offset, address, stream, format, deref_ref, recurse,
 	     pretty)
      struct type *type;
      char *valaddr;
      int embedded_offset;
      CORE_ADDR address;
      struct ui_file *stream;
      int format;
      int deref_ref;
      int recurse;
      enum val_prettyprint pretty;
 {
   register unsigned int i = 0;	/* Number of characters printed */
   unsigned len;
   struct type *elttype;
   unsigned eltlen;
   LONGEST val;
   CORE_ADDR addr;

   CHECK_TYPEDEF (type);
   switch (TYPE_CODE (type))
     {
     case TYPE_CODE_ARRAY:
       elttype = check_typedef (TYPE_TARGET_TYPE (type));
       if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0)
 	{
 	  eltlen = TYPE_LENGTH (elttype);
 	  len = TYPE_LENGTH (type) / eltlen;
 	  if (prettyprint_arrays)
 	    {
 	      print_spaces_filtered (2 + 2 * recurse, stream);
 	    }
 	  /* For an array of chars, print with string syntax.  */
 	  if (eltlen == 1 &&
 	      ((TYPE_CODE (elttype) == TYPE_CODE_INT)
 	       || ((current_language->la_language == language_m2)
 		   && (TYPE_CODE (elttype) == TYPE_CODE_CHAR)))
 	      && (format == 0 || format == 's'))
 	    {
 	      /* If requested, look for the first null char and only print
 	         elements up to it.  */
 	      if (stop_print_at_null)
 		{
 		  unsigned int temp_len;

 		  /* Look for a NULL char. */
 		  for (temp_len = 0;
 		       (valaddr + embedded_offset)[temp_len]
 		       && temp_len < len && temp_len < print_max;
 		       temp_len++);
 		  len = temp_len;
 		}

 	      LA_PRINT_STRING (stream, valaddr + embedded_offset, len, eltlen, 0);
 	      i = len;
 	    }
 	  else
 	    {
 	      fprintf_filtered (stream, "{");
 	      /* If this is a virtual function table, print the 0th
 	         entry specially, and the rest of the members normally.  */
 	      if (cp_is_vtbl_ptr_type (elttype))
 		{
 		  i = 1;
 		  fprintf_filtered (stream, "%d vtable entries", len - 1);
 		}
 	      else
 		{
 		  i = 0;
 		}
 	      val_print_array_elements (type, valaddr + embedded_offset, address, stream,
 				     format, deref_ref, recurse, pretty, i);
 	      fprintf_filtered (stream, "}");
 	    }
 	  break;
 	}
       /* Array of unspecified length: treat like pointer to first elt.  */
       addr = address;
       goto print_unpacked_pointer;

     case TYPE_CODE_PTR:
       if (format && format != 's')
 	{
 	  print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
 	  break;
 	}
       if (vtblprint && cp_is_vtbl_ptr_type (type))
 	{
 	  /* Print the unmangled name if desired.  */
 	  /* Print vtable entry - we only get here if we ARE using
 	     -fvtable_thunks.  (Otherwise, look under TYPE_CODE_STRUCT.) */
 	  CORE_ADDR addr
 	    = extract_typed_address (valaddr + embedded_offset, type);
 	  print_address_demangle (addr, stream, demangle);
 	  break;
 	}
       elttype = check_typedef (TYPE_TARGET_TYPE (type));
       if (TYPE_CODE (elttype) == TYPE_CODE_METHOD)
 	{
 	  cp_print_class_method (valaddr + embedded_offset, type, stream);
 	}
       else if (TYPE_CODE (elttype) == TYPE_CODE_MEMBER)
 	{
 	  cp_print_class_member (valaddr + embedded_offset,
 				 TYPE_DOMAIN_TYPE (TYPE_TARGET_TYPE (type)),
 				 stream, "&");
 	}
       else
 	{
 	  addr = unpack_pointer (type, valaddr + embedded_offset);
 	print_unpacked_pointer:
 	  elttype = check_typedef (TYPE_TARGET_TYPE (type));

 	  if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
 	    {
 	      /* Try to print what function it points to.  */
 	      print_address_demangle (addr, stream, demangle);
 	      /* Return value is irrelevant except for string pointers.  */
 	      return (0);
 	    }

 	  if (addressprint && format != 's')
 	    {
 	      print_address_numeric (addr, 1, stream);
 	    }

 	  /* For a pointer to char or unsigned char, also print the string
 	     pointed to, unless pointer is null.  */
 	  /* FIXME: need to handle wchar_t here... */

 	  if (TYPE_LENGTH (elttype) == 1
 	      && TYPE_CODE (elttype) == TYPE_CODE_INT
 	      && (format == 0 || format == 's')
 	      && addr != 0)
 	    {
 	      i = val_print_string (addr, -1, TYPE_LENGTH (elttype), stream);
 	    }
 	  else if (cp_is_vtbl_member (type))
 	    {
 	      /* print vtbl's nicely */
 	      CORE_ADDR vt_address = unpack_pointer (type, valaddr + embedded_offset);

 	      struct minimal_symbol *msymbol =
 	      lookup_minimal_symbol_by_pc (vt_address);
 	      if ((msymbol != NULL) &&
 		  (vt_address == SYMBOL_VALUE_ADDRESS (msymbol)))
 		{
 		  fputs_filtered (" <", stream);
 		  fputs_filtered (SYMBOL_SOURCE_NAME (msymbol), stream);
 		  fputs_filtered (">", stream);
 		}
 	      if (vt_address && vtblprint)
 		{
 		  value_ptr vt_val;
 		  struct symbol *wsym = (struct symbol *) NULL;
 		  struct type *wtype;
 		  struct symtab *s;
 		  struct block *block = (struct block *) NULL;
 		  int is_this_fld;

 		  if (msymbol != NULL)
 		    wsym = lookup_symbol (SYMBOL_NAME (msymbol), block,
 					  VAR_NAMESPACE, &is_this_fld, &s);

 		  if (wsym)
 		    {
 		      wtype = SYMBOL_TYPE (wsym);
 		    }
 		  else
 		    {
 		      wtype = TYPE_TARGET_TYPE (type);
 		    }
 		  vt_val = value_at (wtype, vt_address, NULL);
 		  val_print (VALUE_TYPE (vt_val), VALUE_CONTENTS (vt_val), 0,
 			     VALUE_ADDRESS (vt_val), stream, format,
 			     deref_ref, recurse + 1, pretty);
 		  if (pretty)
 		    {
 		      fprintf_filtered (stream, "\n");
 		      print_spaces_filtered (2 + 2 * recurse, stream);
 		    }
 		}
 	    }

 	  /* Return number of characters printed, including the terminating
 	     '\0' if we reached the end.  val_print_string takes care including
 	     the terminating '\0' if necessary.  */
 	  return i;
 	}
       break;

     case TYPE_CODE_MEMBER:
       error ("not implemented: member type in c_val_print");
       break;

     case TYPE_CODE_REF:
       elttype = check_typedef (TYPE_TARGET_TYPE (type));
       if (TYPE_CODE (elttype) == TYPE_CODE_MEMBER)
 	{
 	  cp_print_class_member (valaddr + embedded_offset,
 				 TYPE_DOMAIN_TYPE (elttype),
 				 stream, "");
 	  break;
 	}
       if (addressprint)
 	{
 	  CORE_ADDR addr
 	    = extract_typed_address (valaddr + embedded_offset, type);
 	  fprintf_filtered (stream, "@");
 	  print_address_numeric (addr, 1, stream);
 	  if (deref_ref)
 	    fputs_filtered (": ", stream);
 	}
       /* De-reference the reference.  */
       if (deref_ref)
 	{
 	  if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
 	    {
 	      value_ptr deref_val =
 	      value_at
 	      (TYPE_TARGET_TYPE (type),
 	       unpack_pointer (lookup_pointer_type (builtin_type_void),
 			       valaddr + embedded_offset),
 	       NULL);
 	      val_print (VALUE_TYPE (deref_val),
 			 VALUE_CONTENTS (deref_val),
 			 0,
 			 VALUE_ADDRESS (deref_val),
 			 stream,
 			 format,
 			 deref_ref,
 			 recurse,
 			 pretty);
 	    }
 	  else
 	    fputs_filtered ("???", stream);
 	}
       break;

     case TYPE_CODE_UNION:
       if (recurse && !unionprint)
 	{
 	  fprintf_filtered (stream, "{...}");
 	  break;
 	}
       /* Fall through.  */
     case TYPE_CODE_STRUCT:
       if (vtblprint && cp_is_vtbl_ptr_type (type))
 	{
 	  /* Print the unmangled name if desired.  */
 	  /* Print vtable entry - we only get here if NOT using
 	     -fvtable_thunks.  (Otherwise, look under TYPE_CODE_PTR.) */
 	  int offset = (embedded_offset +
 			TYPE_FIELD_BITPOS (type, VTBL_FNADDR_OFFSET) / 8);
 	  struct type *field_type = TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET);
 	  CORE_ADDR addr
 	    = extract_typed_address (valaddr + offset, field_type);

 	  print_address_demangle (addr, stream, demangle);
 	}
       else
 	cp_print_value_fields (type, type, valaddr, embedded_offset, address, stream, format,
 			       recurse, pretty, NULL, 0);
       break;

     case TYPE_CODE_ENUM:
       if (format)
 	{
 	  print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
 	  break;
 	}
       len = TYPE_NFIELDS (type);
       val = unpack_long (type, valaddr + embedded_offset);
       for (i = 0; i < len; i++)
 	{
 	  QUIT;
 	  if (val == TYPE_FIELD_BITPOS (type, i))
 	    {
 	      break;
 	    }
 	}
       if (i < len)
 	{
 	  fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
 	}
       else
 	{
 	  print_longest (stream, 'd', 0, val);
 	}
       break;

     case TYPE_CODE_FUNC:
       if (format)
 	{
 	  print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
 	  break;
 	}
       /* FIXME, we should consider, at least for ANSI C language, eliminating
          the distinction made between FUNCs and POINTERs to FUNCs.  */
       fprintf_filtered (stream, "{");
       type_print (type, "", stream, -1);
       fprintf_filtered (stream, "} ");
       /* Try to print what function it points to, and its address.  */
       print_address_demangle (address, stream, demangle);
       break;

     case TYPE_CODE_BOOL:
       format = format ? format : output_format;
       if (format)
 	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
       else
 	{
 	  val = unpack_long (type, valaddr + embedded_offset);
 	  if (val == 0)
 	    fputs_filtered ("false", stream);
 	  else if (val == 1)
 	    fputs_filtered ("true", stream);
 	  else
 	    print_longest (stream, 'd', 0, val);
 	}
       break;

     case TYPE_CODE_RANGE:
       /* FIXME: create_range_type does not set the unsigned bit in a
          range type (I think it probably should copy it from the target
          type), so we won't print values which are too large to
          fit in a signed integer correctly.  */
       /* FIXME: Doesn't handle ranges of enums correctly.  (Can't just
          print with the target type, though, because the size of our type
          and the target type might differ).  */
       /* FALLTHROUGH */

     case TYPE_CODE_INT:
       format = format ? format : output_format;
       if (format)
 	{
 	  print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
 	}
       else
 	{
 	  val_print_type_code_int (type, valaddr + embedded_offset, stream);
 	  /* C and C++ has no single byte int type, char is used instead.
 	     Since we don't know whether the value is really intended to
 	     be used as an integer or a character, print the character
 	     equivalent as well. */
 	  if (TYPE_LENGTH (type) == 1)
 	    {
 	      fputs_filtered (" ", stream);
 	      LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr + embedded_offset),
 			     stream);
 	    }
 	}
       break;

     case TYPE_CODE_CHAR:
       format = format ? format : output_format;
       if (format)
 	{
 	  print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
 	}
       else
 	{
 	  val = unpack_long (type, valaddr + embedded_offset);
 	  if (TYPE_UNSIGNED (type))
 	    fprintf_filtered (stream, "%u", (unsigned int) val);
 	  else
 	    fprintf_filtered (stream, "%d", (int) val);
 	  fputs_filtered (" ", stream);
 	  LA_PRINT_CHAR ((unsigned char) val, stream);
 	}
       break;

     case TYPE_CODE_FLT:
       if (format)
 	{
 	  print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
 	}
       else
 	{
 	  print_floating (valaddr + embedded_offset, type, stream);
 	}
       break;

     case TYPE_CODE_METHOD:
       cp_print_class_method (valaddr + embedded_offset, lookup_pointer_type (type), stream);
       break;

     case TYPE_CODE_VOID:
       fprintf_filtered (stream, "void");
       break;

     case TYPE_CODE_ERROR:
       fprintf_filtered (stream, "<error type>");
       break;

     case TYPE_CODE_UNDEF:
       /* This happens (without TYPE_FLAG_STUB set) on systems which don't use
          dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
          and no complete type for struct foo in that file.  */
       fprintf_filtered (stream, "<incomplete type>");
       break;

     default:
       error ("Invalid C/C++ type code %d in symbol table.", TYPE_CODE (type));
     }
   gdb_flush (stream);
   return (0);
 }

 int
 c_value_print (val, stream, format, pretty)
      value_ptr val;
      struct ui_file *stream;
      int format;
      enum val_prettyprint pretty;
 {
   struct type *type = VALUE_TYPE (val);
   struct type *real_type;
   int full, top, using_enc;

   /* If it is a pointer, indicate what it points to.

      Print type also if it is a reference.

      C++: if it is a member pointer, we will take care
      of that when we print it.  */
   if (TYPE_CODE (type) == TYPE_CODE_PTR ||
       TYPE_CODE (type) == TYPE_CODE_REF)
     {
       /* Hack:  remove (char *) for char strings.  Their
          type is indicated by the quoted string anyway. */
       if (TYPE_CODE (type) == TYPE_CODE_PTR &&
 	  TYPE_NAME (type) == NULL &&
 	  TYPE_NAME (TYPE_TARGET_TYPE (type)) != NULL &&
 	  STREQ (TYPE_NAME (TYPE_TARGET_TYPE (type)), "char"))
 	{
 	  /* Print nothing */
 	}
       else if (objectprint && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CLASS))
 	{

 	  if (TYPE_CODE(type) == TYPE_CODE_REF)
 	    {
 	      /* Copy value, change to pointer, so we don't get an
 	       * error about a non-pointer type in value_rtti_target_type
 	       */
 	      value_ptr temparg;
 	      temparg=value_copy(val);
 	      VALUE_TYPE (temparg) = lookup_pointer_type(TYPE_TARGET_TYPE(type));
 	      val=temparg;
 	    }
 	  /* Pointer to class, check real type of object */
 	  fprintf_filtered (stream, "(");
           real_type = value_rtti_target_type (val, &full, &top, &using_enc);
           if (real_type)
 	    {
 	      /* RTTI entry found */
               if (TYPE_CODE (type) == TYPE_CODE_PTR)
                 {
                   /* create a pointer type pointing to the real type */
                   type = lookup_pointer_type (real_type);
                 }
               else
                 {
                   /* create a reference type referencing the real type */
                   type = lookup_reference_type (real_type);
                 }
 	      /* JYG: Need to adjust pointer value. */
               val->aligner.contents[0] -= top;

               /* Note: When we look up RTTI entries, we don't get any
                  information on const or volatile attributes */
             }
           type_print (type, "", stream, -1);
 	  fprintf_filtered (stream, ") ");
 	}
       else
 	{
 	  /* normal case */
 	  fprintf_filtered (stream, "(");
 	  type_print (type, "", stream, -1);
 	  fprintf_filtered (stream, ") ");
 	}
     }
   if (objectprint && (TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_CLASS))
     {
       /* Attempt to determine real type of object */
       real_type = value_rtti_type (val, &full, &top, &using_enc);
       if (real_type)
 	{
 	  /* We have RTTI information, so use it */
 	  val = value_full_object (val, real_type, full, top, using_enc);
 	  fprintf_filtered (stream, "(%s%s) ",
 			    TYPE_NAME (real_type),
 			    full ? "" : " [incomplete object]");
 	  /* Print out object: enclosing type is same as real_type if full */
 	  return val_print (VALUE_ENCLOSING_TYPE (val), VALUE_CONTENTS_ALL (val), 0,
 			 VALUE_ADDRESS (val), stream, format, 1, 0, pretty);
           /* Note: When we look up RTTI entries, we don't get any information on
              const or volatile attributes */
 	}
       else if (type != VALUE_ENCLOSING_TYPE (val))
 	{
 	  /* No RTTI information, so let's do our best */
 	  fprintf_filtered (stream, "(%s ?) ",
 			    TYPE_NAME (VALUE_ENCLOSING_TYPE (val)));
 	  return val_print (VALUE_ENCLOSING_TYPE (val), VALUE_CONTENTS_ALL (val), 0,
 			 VALUE_ADDRESS (val), stream, format, 1, 0, pretty);
 	}
       /* Otherwise, we end up at the return outside this "if" */
     }

   return val_print (type, VALUE_CONTENTS_ALL (val), VALUE_EMBEDDED_OFFSET (val),
 		    VALUE_ADDRESS (val),
 		    stream, format, 1, 0, pretty);
 }
	/* Support for printing C values for GDB, the GNU debugger.
	Copyright 1986, 1988, 1989, 1991-1997, 2000
	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
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	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. */

	#include "defs.h"
	#include "symtab.h"
	#include "gdbtypes.h"
	#include "expression.h"
	#include "value.h"
	#include "demangle.h"
	#include "valprint.h"
	#include "language.h"
	#include "c-lang.h"


	/* Print data of type TYPE located at VALADDR (within GDB), which came from
	the inferior at address ADDRESS, onto stdio stream STREAM according to
	FORMAT (a letter or 0 for natural format). The data at VALADDR is in
	target byte order.

	If the data are a string pointer, returns the number of string characters
	printed.

	If DEREF_REF is nonzero, then dereference references, otherwise just print
	them like pointers.

	The PRETTY parameter controls prettyprinting. */

	int
	c_val_print (type, valaddr, embedded_offset, address, stream, format, deref_ref, recurse,
	pretty)
	struct type *type;
	char *valaddr;
	int embedded_offset;
	CORE_ADDR address;
	struct ui_file *stream;
	int format;
	int deref_ref;
	int recurse;
	enum val_prettyprint pretty;
	{
	register unsigned int i = 0; /* Number of characters printed */
	unsigned len;
	struct type *elttype;
	unsigned eltlen;
	LONGEST val;
	CORE_ADDR addr;

	CHECK_TYPEDEF (type);
	switch (TYPE_CODE (type))
	{
	case TYPE_CODE_ARRAY:
	elttype = check_typedef (TYPE_TARGET_TYPE (type));
	if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0)
	{
	eltlen = TYPE_LENGTH (elttype);
	len = TYPE_LENGTH (type) / eltlen;
	if (prettyprint_arrays)
	{
	print_spaces_filtered (2 + 2 * recurse, stream);
	}
	/* For an array of chars, print with string syntax. */
	if (eltlen == 1 &&
	((TYPE_CODE (elttype) == TYPE_CODE_INT)
	\|\| ((current_language->la_language == language_m2)
	&& (TYPE_CODE (elttype) == TYPE_CODE_CHAR)))
	&& (format == 0 \|\| format == 's'))
	{
	/* If requested, look for the first null char and only print
	elements up to it. */
	if (stop_print_at_null)
	{
	unsigned int temp_len;

	/* Look for a NULL char. */
	for (temp_len = 0;
	(valaddr + embedded_offset)[temp_len]
	&& temp_len < len && temp_len < print_max;
	temp_len++);
	len = temp_len;
	}

	LA_PRINT_STRING (stream, valaddr + embedded_offset, len, eltlen, 0);
	i = len;
	}
	else
	{
	fprintf_filtered (stream, "{");
	/* If this is a virtual function table, print the 0th
	entry specially, and the rest of the members normally. */
	if (cp_is_vtbl_ptr_type (elttype))
	{
	i = 1;
	fprintf_filtered (stream, "%d vtable entries", len - 1);
	}
	else
	{
	i = 0;
	}
	val_print_array_elements (type, valaddr + embedded_offset, address, stream,
	format, deref_ref, recurse, pretty, i);
	fprintf_filtered (stream, "}");
	}
	break;
	}
	/* Array of unspecified length: treat like pointer to first elt. */
	addr = address;
	goto print_unpacked_pointer;

	case TYPE_CODE_PTR:
	if (format && format != 's')
	{
	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	break;
	}
	if (vtblprint && cp_is_vtbl_ptr_type (type))
	{
	/* Print the unmangled name if desired. */
	/* Print vtable entry - we only get here if we ARE using
	-fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */
	CORE_ADDR addr
	= extract_typed_address (valaddr + embedded_offset, type);
	print_address_demangle (addr, stream, demangle);
	break;
	}
	elttype = check_typedef (TYPE_TARGET_TYPE (type));
	if (TYPE_CODE (elttype) == TYPE_CODE_METHOD)
	{
	cp_print_class_method (valaddr + embedded_offset, type, stream);
	}
	else if (TYPE_CODE (elttype) == TYPE_CODE_MEMBER)
	{
	cp_print_class_member (valaddr + embedded_offset,
	TYPE_DOMAIN_TYPE (TYPE_TARGET_TYPE (type)),
	stream, "&");
	}
	else
	{
	addr = unpack_pointer (type, valaddr + embedded_offset);
	print_unpacked_pointer:
	elttype = check_typedef (TYPE_TARGET_TYPE (type));

	if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
	{
	/* Try to print what function it points to. */
	print_address_demangle (addr, stream, demangle);
	/* Return value is irrelevant except for string pointers. */
	return (0);
	}

	if (addressprint && format != 's')
	{
	print_address_numeric (addr, 1, stream);
	}

	/* For a pointer to char or unsigned char, also print the string
	pointed to, unless pointer is null. */
	/* FIXME: need to handle wchar_t here... */

	if (TYPE_LENGTH (elttype) == 1
	&& TYPE_CODE (elttype) == TYPE_CODE_INT
	&& (format == 0 \|\| format == 's')
	&& addr != 0)
	{
	i = val_print_string (addr, -1, TYPE_LENGTH (elttype), stream);
	}
	else if (cp_is_vtbl_member (type))
	{
	/* print vtbl's nicely */
	CORE_ADDR vt_address = unpack_pointer (type, valaddr + embedded_offset);

	struct minimal_symbol *msymbol =
	lookup_minimal_symbol_by_pc (vt_address);
	if ((msymbol != NULL) &&
	(vt_address == SYMBOL_VALUE_ADDRESS (msymbol)))
	{
	fputs_filtered (" <", stream);
	fputs_filtered (SYMBOL_SOURCE_NAME (msymbol), stream);
	fputs_filtered (">", stream);
	}
	if (vt_address && vtblprint)
	{
	value_ptr vt_val;
	struct symbol wsym = (struct symbol ) NULL;
	struct type *wtype;
	struct symtab *s;
	struct block block = (struct block ) NULL;
	int is_this_fld;

	if (msymbol != NULL)
	wsym = lookup_symbol (SYMBOL_NAME (msymbol), block,
	VAR_NAMESPACE, &is_this_fld, &s);

	if (wsym)
	{
	wtype = SYMBOL_TYPE (wsym);
	}
	else
	{
	wtype = TYPE_TARGET_TYPE (type);
	}
	vt_val = value_at (wtype, vt_address, NULL);
	val_print (VALUE_TYPE (vt_val), VALUE_CONTENTS (vt_val), 0,
	VALUE_ADDRESS (vt_val), stream, format,
	deref_ref, recurse + 1, pretty);
	if (pretty)
	{
	fprintf_filtered (stream, "\n");
	print_spaces_filtered (2 + 2 * recurse, stream);
	}
	}
	}

	/* Return number of characters printed, including the terminating
	'\0' if we reached the end. val_print_string takes care including
	the terminating '\0' if necessary. */
	return i;
	}
	break;

	case TYPE_CODE_MEMBER:
	error ("not implemented: member type in c_val_print");
	break;

	case TYPE_CODE_REF:
	elttype = check_typedef (TYPE_TARGET_TYPE (type));
	if (TYPE_CODE (elttype) == TYPE_CODE_MEMBER)
	{
	cp_print_class_member (valaddr + embedded_offset,
	TYPE_DOMAIN_TYPE (elttype),
	stream, "");
	break;
	}
	if (addressprint)
	{
	CORE_ADDR addr
	= extract_typed_address (valaddr + embedded_offset, type);
	fprintf_filtered (stream, "@");
	print_address_numeric (addr, 1, stream);
	if (deref_ref)
	fputs_filtered (": ", stream);
	}
	/* De-reference the reference. */
	if (deref_ref)
	{
	if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
	{
	value_ptr deref_val =
	value_at
	(TYPE_TARGET_TYPE (type),
	unpack_pointer (lookup_pointer_type (builtin_type_void),
	valaddr + embedded_offset),
	NULL);
	val_print (VALUE_TYPE (deref_val),
	VALUE_CONTENTS (deref_val),
	0,
	VALUE_ADDRESS (deref_val),
	stream,
	format,
	deref_ref,
	recurse,
	pretty);
	}
	else
	fputs_filtered ("???", stream);
	}
	break;

	case TYPE_CODE_UNION:
	if (recurse && !unionprint)
	{
	fprintf_filtered (stream, "{...}");
	break;
	}
	/* Fall through. */
	case TYPE_CODE_STRUCT:
	if (vtblprint && cp_is_vtbl_ptr_type (type))
	{
	/* Print the unmangled name if desired. */
	/* Print vtable entry - we only get here if NOT using
	-fvtable_thunks. (Otherwise, look under TYPE_CODE_PTR.) */
	int offset = (embedded_offset +
	TYPE_FIELD_BITPOS (type, VTBL_FNADDR_OFFSET) / 8);
	struct type *field_type = TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET);
	CORE_ADDR addr
	= extract_typed_address (valaddr + offset, field_type);

	print_address_demangle (addr, stream, demangle);
	}
	else
	cp_print_value_fields (type, type, valaddr, embedded_offset, address, stream, format,
	recurse, pretty, NULL, 0);
	break;

	case TYPE_CODE_ENUM:
	if (format)
	{
	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	break;
	}
	len = TYPE_NFIELDS (type);
	val = unpack_long (type, valaddr + embedded_offset);
	for (i = 0; i < len; i++)
	{
	QUIT;
	if (val == TYPE_FIELD_BITPOS (type, i))
	{
	break;
	}
	}
	if (i < len)
	{
	fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
	}
	else
	{
	print_longest (stream, 'd', 0, val);
	}
	break;

	case TYPE_CODE_FUNC:
	if (format)
	{
	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	break;
	}
	/* FIXME, we should consider, at least for ANSI C language, eliminating
	the distinction made between FUNCs and POINTERs to FUNCs. */
	fprintf_filtered (stream, "{");
	type_print (type, "", stream, -1);
	fprintf_filtered (stream, "} ");
	/* Try to print what function it points to, and its address. */
	print_address_demangle (address, stream, demangle);
	break;

	case TYPE_CODE_BOOL:
	format = format ? format : output_format;
	if (format)
	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	else
	{
	val = unpack_long (type, valaddr + embedded_offset);
	if (val == 0)
	fputs_filtered ("false", stream);
	else if (val == 1)
	fputs_filtered ("true", stream);
	else
	print_longest (stream, 'd', 0, val);
	}
	break;

	case TYPE_CODE_RANGE:
	/* FIXME: create_range_type does not set the unsigned bit in a
	range type (I think it probably should copy it from the target
	type), so we won't print values which are too large to
	fit in a signed integer correctly. */
	/* FIXME: Doesn't handle ranges of enums correctly. (Can't just
	print with the target type, though, because the size of our type
	and the target type might differ). */
	/* FALLTHROUGH */

	case TYPE_CODE_INT:
	format = format ? format : output_format;
	if (format)
	{
	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	}
	else
	{
	val_print_type_code_int (type, valaddr + embedded_offset, stream);
	/* C and C++ has no single byte int type, char is used instead.
	Since we don't know whether the value is really intended to
	be used as an integer or a character, print the character
	equivalent as well. */
	if (TYPE_LENGTH (type) == 1)
	{
	fputs_filtered (" ", stream);
	LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr + embedded_offset),
	stream);
	}
	}
	break;

	case TYPE_CODE_CHAR:
	format = format ? format : output_format;
	if (format)
	{
	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	}
	else
	{
	val = unpack_long (type, valaddr + embedded_offset);
	if (TYPE_UNSIGNED (type))
	fprintf_filtered (stream, "%u", (unsigned int) val);
	else
	fprintf_filtered (stream, "%d", (int) val);
	fputs_filtered (" ", stream);
	LA_PRINT_CHAR ((unsigned char) val, stream);
	}
	break;

	case TYPE_CODE_FLT:
	if (format)
	{
	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	}
	else
	{
	print_floating (valaddr + embedded_offset, type, stream);
	}
	break;

	case TYPE_CODE_METHOD:
	cp_print_class_method (valaddr + embedded_offset, lookup_pointer_type (type), stream);
	break;

	case TYPE_CODE_VOID:
	fprintf_filtered (stream, "void");
	break;

	case TYPE_CODE_ERROR:
	fprintf_filtered (stream, "<error type>");
	break;

	case TYPE_CODE_UNDEF:
	/* This happens (without TYPE_FLAG_STUB set) on systems which don't use
	dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
	and no complete type for struct foo in that file. */
	fprintf_filtered (stream, "<incomplete type>");
	break;

	default:
	error ("Invalid C/C++ type code %d in symbol table.", TYPE_CODE (type));
	}
	gdb_flush (stream);
	return (0);
	}

	int
	c_value_print (val, stream, format, pretty)
	value_ptr val;
	struct ui_file *stream;
	int format;
	enum val_prettyprint pretty;
	{
	struct type *type = VALUE_TYPE (val);
	struct type *real_type;
	int full, top, using_enc;

	/* If it is a pointer, indicate what it points to.

	Print type also if it is a reference.

	C++: if it is a member pointer, we will take care
	of that when we print it. */
	if (TYPE_CODE (type) == TYPE_CODE_PTR \|\|
	TYPE_CODE (type) == TYPE_CODE_REF)
	{
	/* Hack: remove (char *) for char strings. Their
	type is indicated by the quoted string anyway. */
	if (TYPE_CODE (type) == TYPE_CODE_PTR &&
	TYPE_NAME (type) == NULL &&
	TYPE_NAME (TYPE_TARGET_TYPE (type)) != NULL &&
	STREQ (TYPE_NAME (TYPE_TARGET_TYPE (type)), "char"))
	{
	/* Print nothing */
	}
	else if (objectprint && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CLASS))
	{

	if (TYPE_CODE(type) == TYPE_CODE_REF)
	{
	/* Copy value, change to pointer, so we don't get an
	* error about a non-pointer type in value_rtti_target_type
	*/
	value_ptr temparg;
	temparg=value_copy(val);
	VALUE_TYPE (temparg) = lookup_pointer_type(TYPE_TARGET_TYPE(type));
	val=temparg;
	}
	/* Pointer to class, check real type of object */
	fprintf_filtered (stream, "(");
	real_type = value_rtti_target_type (val, &full, &top, &using_enc);
	if (real_type)
	{
	/* RTTI entry found */
	if (TYPE_CODE (type) == TYPE_CODE_PTR)
	{
	/* create a pointer type pointing to the real type */
	type = lookup_pointer_type (real_type);
	}
	else
	{
	/* create a reference type referencing the real type */
	type = lookup_reference_type (real_type);
	}
	/* JYG: Need to adjust pointer value. */
	val->aligner.contents[0] -= top;

	/* Note: When we look up RTTI entries, we don't get any
	information on const or volatile attributes */
	}
	type_print (type, "", stream, -1);
	fprintf_filtered (stream, ") ");
	}
	else
	{
	/* normal case */
	fprintf_filtered (stream, "(");
	type_print (type, "", stream, -1);
	fprintf_filtered (stream, ") ");
	}
	}
	if (objectprint && (TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_CLASS))
	{
	/* Attempt to determine real type of object */
	real_type = value_rtti_type (val, &full, &top, &using_enc);
	if (real_type)
	{
	/* We have RTTI information, so use it */
	val = value_full_object (val, real_type, full, top, using_enc);
	fprintf_filtered (stream, "(%s%s) ",
	TYPE_NAME (real_type),
	full ? "" : " [incomplete object]");
	/* Print out object: enclosing type is same as real_type if full */
	return val_print (VALUE_ENCLOSING_TYPE (val), VALUE_CONTENTS_ALL (val), 0,
	VALUE_ADDRESS (val), stream, format, 1, 0, pretty);
	/* Note: When we look up RTTI entries, we don't get any information on
	const or volatile attributes */
	}
	else if (type != VALUE_ENCLOSING_TYPE (val))
	{
	/* No RTTI information, so let's do our best */
	fprintf_filtered (stream, "(%s ?) ",
	TYPE_NAME (VALUE_ENCLOSING_TYPE (val)));
	return val_print (VALUE_ENCLOSING_TYPE (val), VALUE_CONTENTS_ALL (val), 0,
	VALUE_ADDRESS (val), stream, format, 1, 0, pretty);
	}
	/* Otherwise, we end up at the return outside this "if" */
	}

	return val_print (type, VALUE_CONTENTS_ALL (val), VALUE_EMBEDDED_OFFSET (val),
	VALUE_ADDRESS (val),
	stream, format, 1, 0, pretty);
	}