[thirdparty/binutils-gdb.git] / gdb / c-valprint.c

/* Support for printing C values for GDB, the GNU debugger.
   Copyright 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997
   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"
\f

/* 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;
     GDB_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)
		{
		  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.) */
	  print_address_demangle (extract_address (valaddr + embedded_offset, TYPE_LENGTH (type)),
				  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)
	{
	  fprintf_filtered (stream, "@");
	  print_address_numeric
	    (extract_address (valaddr + embedded_offset,
			      TARGET_PTR_BIT / HOST_CHAR_BIT), 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.) */
	  print_address_demangle (extract_address (
						 valaddr + embedded_offset +
			   TYPE_FIELD_BITPOS (type, VTBL_FNADDR_OFFSET) / 8,
		  TYPE_LENGTH (TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET))),
				  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
	{
	  fprintf_filtered (stream, TYPE_UNSIGNED (type) ? "%u" : "%d",
			    unpack_long (type, valaddr + embedded_offset));
	  fputs_filtered (" ", stream);
	  LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr + embedded_offset), 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);
}
\f
int
c_value_print (val, stream, format, pretty)
     value_ptr val;
     GDB_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))
	{
	  /* Pointer to class, check real type of object */
	  fprintf_filtered (stream, "(");
	  type = value_rtti_target_type (val, &full, &top, &using_enc);
	  if (type)
	    {
	      /* RTTI entry found */
	      type = lookup_pointer_type (type);
	      type_print (type, "", stream, -1);
	    }
	  else
	    {
	      /* No RTTI fields, do whatever we can */
	      type = VALUE_ENCLOSING_TYPE (val);
	      type_print (type, "", stream, -1);
	      fprintf_filtered (stream, " ?");
	    }
	  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);
	}
      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);
}
Commit	Line	Data
c906108c SS	1	/* Support for printing C values for GDB, the GNU debugger.
c906108c SS	2	Copyright 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997
c5aa993b	3	Free Software Foundation, Inc.
c906108c	4
c5aa993b	5	This file is part of GDB.
c906108c	6
c5aa993b JM	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 2 of the License, or
	10	(at your option) any later version.
c906108c	11
c5aa993b JM	12	This program is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
c906108c	16
c5aa993b JM	17	You should have received a copy of the GNU General Public License
	18	along with this program; if not, write to the Free Software
	19	Foundation, Inc., 59 Temple Place - Suite 330,
	20	Boston, MA 02111-1307, USA. */
c906108c SS	21
	22	#include "defs.h"
	23	#include "symtab.h"
	24	#include "gdbtypes.h"
	25	#include "expression.h"
	26	#include "value.h"
	27	#include "demangle.h"
	28	#include "valprint.h"
	29	#include "language.h"
	30	#include "c-lang.h"
c906108c	31	\f
c5aa993b	32
c906108c SS	33	/* Print data of type TYPE located at VALADDR (within GDB), which came from
	34	the inferior at address ADDRESS, onto stdio stream STREAM according to
	35	FORMAT (a letter or 0 for natural format). The data at VALADDR is in
	36	target byte order.
	37
	38	If the data are a string pointer, returns the number of string characters
	39	printed.
	40
	41	If DEREF_REF is nonzero, then dereference references, otherwise just print
	42	them like pointers.
	43
	44	The PRETTY parameter controls prettyprinting. */
	45
	46	int
	47	c_val_print (type, valaddr, embedded_offset, address, stream, format, deref_ref, recurse,
	48	pretty)
	49	struct type *type;
	50	char *valaddr;
	51	int embedded_offset;
	52	CORE_ADDR address;
	53	GDB_FILE *stream;
	54	int format;
	55	int deref_ref;
	56	int recurse;
	57	enum val_prettyprint pretty;
	58	{
c5aa993b	59	register unsigned int i = 0; /* Number of characters printed */
c906108c SS	60	unsigned len;
	61	struct type *elttype;
	62	unsigned eltlen;
	63	LONGEST val;
	64	CORE_ADDR addr;
	65
	66	CHECK_TYPEDEF (type);
	67	switch (TYPE_CODE (type))
	68	{
	69	case TYPE_CODE_ARRAY:
	70	elttype = check_typedef (TYPE_TARGET_TYPE (type));
	71	if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0)
	72	{
	73	eltlen = TYPE_LENGTH (elttype);
	74	len = TYPE_LENGTH (type) / eltlen;
	75	if (prettyprint_arrays)
	76	{
	77	print_spaces_filtered (2 + 2 * recurse, stream);
	78	}
	79	/* For an array of chars, print with string syntax. */
	80	if (eltlen == 1 &&
	81	((TYPE_CODE (elttype) == TYPE_CODE_INT)
	82	\|\| ((current_language->la_language == language_m2)
	83	&& (TYPE_CODE (elttype) == TYPE_CODE_CHAR)))
	84	&& (format == 0 \|\| format == 's'))
	85	{
	86	/* If requested, look for the first null char and only print
c5aa993b	87	elements up to it. */
c906108c SS	88	if (stop_print_at_null)
	89	{
	90	int temp_len;
c5aa993b	91
c906108c SS	92	/* Look for a NULL char. */
	93	for (temp_len = 0;
	94	(valaddr + embedded_offset)[temp_len]
	95	&& temp_len < len && temp_len < print_max;
	96	temp_len++);
	97	len = temp_len;
	98	}
c5aa993b	99
c906108c SS	100	LA_PRINT_STRING (stream, valaddr + embedded_offset, len, eltlen, 0);
	101	i = len;
	102	}
	103	else
	104	{
	105	fprintf_filtered (stream, "{");
	106	/* If this is a virtual function table, print the 0th
c5aa993b	107	entry specially, and the rest of the members normally. */
c906108c SS	108	if (cp_is_vtbl_ptr_type (elttype))
	109	{
	110	i = 1;
	111	fprintf_filtered (stream, "%d vtable entries", len - 1);
	112	}
	113	else
	114	{
	115	i = 0;
	116	}
	117	val_print_array_elements (type, valaddr + embedded_offset, address, stream,
c5aa993b	118	format, deref_ref, recurse, pretty, i);
c906108c SS	119	fprintf_filtered (stream, "}");
	120	}
	121	break;
	122	}
	123	/* Array of unspecified length: treat like pointer to first elt. */
	124	addr = address;
	125	goto print_unpacked_pointer;
	126
	127	case TYPE_CODE_PTR:
	128	if (format && format != 's')
	129	{
	130	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	131	break;
	132	}
c5aa993b	133	if (vtblprint && cp_is_vtbl_ptr_type (type))
c906108c	134	{
c5aa993b	135	/* Print the unmangled name if desired. */
c906108c SS	136	/* Print vtable entry - we only get here if we ARE using
c906108c SS	137	-fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */
c5aa993b JM	138	print_address_demangle (extract_address (valaddr + embedded_offset, TYPE_LENGTH (type)),
c5aa993b JM	139	stream, demangle);
c906108c SS	140	break;
	141	}
	142	elttype = check_typedef (TYPE_TARGET_TYPE (type));
	143	if (TYPE_CODE (elttype) == TYPE_CODE_METHOD)
	144	{
	145	cp_print_class_method (valaddr + embedded_offset, type, stream);
	146	}
	147	else if (TYPE_CODE (elttype) == TYPE_CODE_MEMBER)
	148	{
	149	cp_print_class_member (valaddr + embedded_offset,
	150	TYPE_DOMAIN_TYPE (TYPE_TARGET_TYPE (type)),
	151	stream, "&");
	152	}
	153	else
	154	{
	155	addr = unpack_pointer (type, valaddr + embedded_offset);
	156	print_unpacked_pointer:
c5aa993b	157	elttype = check_typedef (TYPE_TARGET_TYPE (type));
c906108c SS	158
	159	if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
	160	{
	161	/* Try to print what function it points to. */
	162	print_address_demangle (addr, stream, demangle);
	163	/* Return value is irrelevant except for string pointers. */
	164	return (0);
	165	}
	166
	167	if (addressprint && format != 's')
	168	{
	169	print_address_numeric (addr, 1, stream);
	170	}
	171
	172	/* For a pointer to char or unsigned char, also print the string
	173	pointed to, unless pointer is null. */
	174	/* FIXME: need to handle wchar_t here... */
	175
	176	if (TYPE_LENGTH (elttype) == 1
	177	&& TYPE_CODE (elttype) == TYPE_CODE_INT
	178	&& (format == 0 \|\| format == 's')
	179	&& addr != 0)
	180	{
	181	i = val_print_string (addr, -1, TYPE_LENGTH (elttype), stream);
	182	}
c5aa993b JM	183	else if (cp_is_vtbl_member (type))
c5aa993b JM	184	{
c906108c SS	185	/* print vtbl's nicely */
	186	CORE_ADDR vt_address = unpack_pointer (type, valaddr + embedded_offset);
	187
	188	struct minimal_symbol *msymbol =
c5aa993b	189	lookup_minimal_symbol_by_pc (vt_address);
c906108c SS	190	if ((msymbol != NULL) &&
	191	(vt_address == SYMBOL_VALUE_ADDRESS (msymbol)))
	192	{
	193	fputs_filtered (" <", stream);
	194	fputs_filtered (SYMBOL_SOURCE_NAME (msymbol), stream);
	195	fputs_filtered (">", stream);
	196	}
	197	if (vt_address && vtblprint)
c5aa993b	198	{
c906108c	199	value_ptr vt_val;
c5aa993b JM	200	struct symbol wsym = (struct symbol ) NULL;
c5aa993b JM	201	struct type *wtype;
c906108c	202	struct symtab *s;
c5aa993b	203	struct block block = (struct block ) NULL;
c906108c SS	204	int is_this_fld;
	205
	206	if (msymbol != NULL)
c5aa993b JM	207	wsym = lookup_symbol (SYMBOL_NAME (msymbol), block,
	208	VAR_NAMESPACE, &is_this_fld, &s);
	209
c906108c SS	210	if (wsym)
c906108c SS	211	{
c5aa993b	212	wtype = SYMBOL_TYPE (wsym);
c906108c SS	213	}
	214	else
	215	{
c5aa993b	216	wtype = TYPE_TARGET_TYPE (type);
c906108c SS	217	}
	218	vt_val = value_at (wtype, vt_address, NULL);
	219	val_print (VALUE_TYPE (vt_val), VALUE_CONTENTS (vt_val), 0,
	220	VALUE_ADDRESS (vt_val), stream, format,
	221	deref_ref, recurse + 1, pretty);
	222	if (pretty)
	223	{
	224	fprintf_filtered (stream, "\n");
	225	print_spaces_filtered (2 + 2 * recurse, stream);
	226	}
c5aa993b JM	227	}
c5aa993b JM	228	}
c906108c SS	229
	230	/* Return number of characters printed, including the terminating
	231	'\0' if we reached the end. val_print_string takes care including
	232	the terminating '\0' if necessary. */
	233	return i;
	234	}
	235	break;
	236
	237	case TYPE_CODE_MEMBER:
	238	error ("not implemented: member type in c_val_print");
	239	break;
	240
	241	case TYPE_CODE_REF:
	242	elttype = check_typedef (TYPE_TARGET_TYPE (type));
	243	if (TYPE_CODE (elttype) == TYPE_CODE_MEMBER)
c5aa993b	244	{
c906108c SS	245	cp_print_class_member (valaddr + embedded_offset,
	246	TYPE_DOMAIN_TYPE (elttype),
	247	stream, "");
	248	break;
	249	}
	250	if (addressprint)
c5aa993b	251	{
c906108c SS	252	fprintf_filtered (stream, "@");
	253	print_address_numeric
	254	(extract_address (valaddr + embedded_offset,
	255	TARGET_PTR_BIT / HOST_CHAR_BIT), 1, stream);
	256	if (deref_ref)
	257	fputs_filtered (": ", stream);
c5aa993b	258	}
c906108c SS	259	/* De-reference the reference. */
	260	if (deref_ref)
	261	{
	262	if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
	263	{
	264	value_ptr deref_val =
c5aa993b JM	265	value_at
	266	(TYPE_TARGET_TYPE (type),
	267	unpack_pointer (lookup_pointer_type (builtin_type_void),
	268	valaddr + embedded_offset),
	269	NULL);
c906108c	270	val_print (VALUE_TYPE (deref_val),
c5aa993b JM	271	VALUE_CONTENTS (deref_val),
	272	0,
	273	VALUE_ADDRESS (deref_val),
	274	stream,
	275	format,
	276	deref_ref,
	277	recurse,
	278	pretty);
c906108c SS	279	}
	280	else
	281	fputs_filtered ("???", stream);
	282	}
	283	break;
	284
	285	case TYPE_CODE_UNION:
	286	if (recurse && !unionprint)
	287	{
	288	fprintf_filtered (stream, "{...}");
	289	break;
	290	}
	291	/* Fall through. */
	292	case TYPE_CODE_STRUCT:
c5aa993b	293	if (vtblprint && cp_is_vtbl_ptr_type (type))
c906108c	294	{
c5aa993b	295	/* Print the unmangled name if desired. */
c906108c SS	296	/* Print vtable entry - we only get here if NOT using
c906108c SS	297	-fvtable_thunks. (Otherwise, look under TYPE_CODE_PTR.) */
c5aa993b JM	298	print_address_demangle (extract_address (
	299	valaddr + embedded_offset +
	300	TYPE_FIELD_BITPOS (type, VTBL_FNADDR_OFFSET) / 8,
	301	TYPE_LENGTH (TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET))),
	302	stream, demangle);
c906108c SS	303	}
	304	else
	305	cp_print_value_fields (type, type, valaddr, embedded_offset, address, stream, format,
	306	recurse, pretty, NULL, 0);
	307	break;
	308
	309	case TYPE_CODE_ENUM:
	310	if (format)
	311	{
	312	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	313	break;
	314	}
	315	len = TYPE_NFIELDS (type);
	316	val = unpack_long (type, valaddr + embedded_offset);
	317	for (i = 0; i < len; i++)
	318	{
	319	QUIT;
	320	if (val == TYPE_FIELD_BITPOS (type, i))
	321	{
	322	break;
	323	}
	324	}
	325	if (i < len)
	326	{
	327	fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
	328	}
	329	else
	330	{
	331	print_longest (stream, 'd', 0, val);
	332	}
	333	break;
	334
	335	case TYPE_CODE_FUNC:
	336	if (format)
	337	{
	338	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	339	break;
	340	}
	341	/* FIXME, we should consider, at least for ANSI C language, eliminating
c5aa993b	342	the distinction made between FUNCs and POINTERs to FUNCs. */
c906108c SS	343	fprintf_filtered (stream, "{");
	344	type_print (type, "", stream, -1);
	345	fprintf_filtered (stream, "} ");
	346	/* Try to print what function it points to, and its address. */
	347	print_address_demangle (address, stream, demangle);
	348	break;
	349
	350	case TYPE_CODE_BOOL:
	351	format = format ? format : output_format;
	352	if (format)
	353	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	354	else
	355	{
	356	val = unpack_long (type, valaddr + embedded_offset);
	357	if (val == 0)
	358	fputs_filtered ("false", stream);
	359	else if (val == 1)
	360	fputs_filtered ("true", stream);
	361	else
	362	print_longest (stream, 'd', 0, val);
	363	}
	364	break;
	365
	366	case TYPE_CODE_RANGE:
	367	/* FIXME: create_range_type does not set the unsigned bit in a
c5aa993b JM	368	range type (I think it probably should copy it from the target
	369	type), so we won't print values which are too large to
	370	fit in a signed integer correctly. */
c906108c	371	/* FIXME: Doesn't handle ranges of enums correctly. (Can't just
c5aa993b JM	372	print with the target type, though, because the size of our type
c5aa993b JM	373	and the target type might differ). */
c906108c SS	374	/* FALLTHROUGH */
	375
	376	case TYPE_CODE_INT:
	377	format = format ? format : output_format;
	378	if (format)
	379	{
	380	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	381	}
	382	else
	383	{
	384	val_print_type_code_int (type, valaddr + embedded_offset, stream);
	385	/* C and C++ has no single byte int type, char is used instead.
	386	Since we don't know whether the value is really intended to
	387	be used as an integer or a character, print the character
	388	equivalent as well. */
	389	if (TYPE_LENGTH (type) == 1)
	390	{
	391	fputs_filtered (" ", stream);
	392	LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr + embedded_offset),
	393	stream);
	394	}
	395	}
	396	break;
	397
	398	case TYPE_CODE_CHAR:
	399	format = format ? format : output_format;
	400	if (format)
	401	{
	402	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	403	}
	404	else
	405	{
	406	fprintf_filtered (stream, TYPE_UNSIGNED (type) ? "%u" : "%d",
	407	unpack_long (type, valaddr + embedded_offset));
	408	fputs_filtered (" ", stream);
	409	LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr + embedded_offset), stream);
	410	}
	411	break;
	412
	413	case TYPE_CODE_FLT:
	414	if (format)
	415	{
	416	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	417	}
	418	else
	419	{
	420	print_floating (valaddr + embedded_offset, type, stream);
	421	}
	422	break;
	423
	424	case TYPE_CODE_METHOD:
	425	cp_print_class_method (valaddr + embedded_offset, lookup_pointer_type (type), stream);
	426	break;
	427
	428	case TYPE_CODE_VOID:
	429	fprintf_filtered (stream, "void");
	430	break;
	431
	432	case TYPE_CODE_ERROR:
	433	fprintf_filtered (stream, "<error type>");
	434	break;
	435
	436	case TYPE_CODE_UNDEF:
	437	/* This happens (without TYPE_FLAG_STUB set) on systems which don't use
c5aa993b JM	438	dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
c5aa993b JM	439	and no complete type for struct foo in that file. */
c906108c SS	440	fprintf_filtered (stream, "<incomplete type>");
	441	break;
	442
	443	default:
	444	error ("Invalid C/C++ type code %d in symbol table.", TYPE_CODE (type));
	445	}
	446	gdb_flush (stream);
	447	return (0);
	448	}
	449	\f
	450	int
	451	c_value_print (val, stream, format, pretty)
	452	value_ptr val;
	453	GDB_FILE *stream;
	454	int format;
	455	enum val_prettyprint pretty;
	456	{
	457	struct type *type = VALUE_TYPE (val);
c5aa993b	458	struct type *real_type;
c906108c	459	int full, top, using_enc;
c5aa993b	460
c906108c SS	461	/* If it is a pointer, indicate what it points to.
	462
	463	Print type also if it is a reference.
	464
	465	C++: if it is a member pointer, we will take care
	466	of that when we print it. */
	467	if (TYPE_CODE (type) == TYPE_CODE_PTR \|\|
	468	TYPE_CODE (type) == TYPE_CODE_REF)
	469	{
	470	/* Hack: remove (char *) for char strings. Their
c5aa993b	471	type is indicated by the quoted string anyway. */
c906108c SS	472	if (TYPE_CODE (type) == TYPE_CODE_PTR &&
	473	TYPE_NAME (type) == NULL &&
	474	TYPE_NAME (TYPE_TARGET_TYPE (type)) != NULL &&
	475	STREQ (TYPE_NAME (TYPE_TARGET_TYPE (type)), "char"))
	476	{
	477	/* Print nothing */
	478	}
	479	else if (objectprint && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CLASS))
c5aa993b JM	480	{
c5aa993b JM	481	/* Pointer to class, check real type of object */
c906108c	482	fprintf_filtered (stream, "(");
c5aa993b JM	483	type = value_rtti_target_type (val, &full, &top, &using_enc);
	484	if (type)
	485	{
	486	/* RTTI entry found */
	487	type = lookup_pointer_type (type);
	488	type_print (type, "", stream, -1);
	489	}
	490	else
	491	{
	492	/* No RTTI fields, do whatever we can */
	493	type = VALUE_ENCLOSING_TYPE (val);
	494	type_print (type, "", stream, -1);
	495	fprintf_filtered (stream, " ?");
	496	}
c906108c	497	fprintf_filtered (stream, ") ");
c5aa993b	498	}
c906108c SS	499	else
c906108c SS	500	{
c5aa993b	501	/* normal case */
c906108c SS	502	fprintf_filtered (stream, "(");
	503	type_print (type, "", stream, -1);
	504	fprintf_filtered (stream, ") ");
	505	}
	506	}
	507	if (objectprint && (TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_CLASS))
	508	{
	509	/* Attempt to determine real type of object */
	510	real_type = value_rtti_type (val, &full, &top, &using_enc);
c5aa993b JM	511	if (real_type)
	512	{
	513	/* We have RTTI information, so use it */
	514	val = value_full_object (val, real_type, full, top, using_enc);
	515	fprintf_filtered (stream, "(%s%s) ",
	516	TYPE_NAME (real_type),
	517	full ? "" : " [incomplete object]");
	518	/* Print out object: enclosing type is same as real_type if full */
	519	return val_print (VALUE_ENCLOSING_TYPE (val), VALUE_CONTENTS_ALL (val), 0,
	520	VALUE_ADDRESS (val), stream, format, 1, 0, pretty);
	521	}
c906108c	522	else if (type != VALUE_ENCLOSING_TYPE (val))
c5aa993b JM	523	{
	524	/* No RTTI information, so let's do our best */
	525	fprintf_filtered (stream, "(%s ?) ",
	526	TYPE_NAME (VALUE_ENCLOSING_TYPE (val)));
	527	return val_print (VALUE_ENCLOSING_TYPE (val), VALUE_CONTENTS_ALL (val), 0,
	528	VALUE_ADDRESS (val), stream, format, 1, 0, pretty);
	529	}
c906108c SS	530	/* Otherwise, we end up at the return outside this "if" */
c906108c SS	531	}
c5aa993b JM	532
c5aa993b JM	533	return val_print (type, VALUE_CONTENTS_ALL (val), VALUE_EMBEDDED_OFFSET (val),
c906108c SS	534	VALUE_ADDRESS (val),
	535	stream, format, 1, 0, pretty);
	536	}