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

/* Support for printing C values for GDB, the GNU debugger.

   Copyright (C) 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996,
   1997, 1998, 1999, 2000, 2001, 2003, 2005, 2006
   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., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.  */

#include "defs.h"
#include "gdb_string.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "value.h"
#include "valprint.h"
#include "language.h"
#include "c-lang.h"
#include "cp-abi.h"
#include "target.h"
\f

/* Print function pointer with inferior address ADDRESS onto stdio
   stream STREAM.  */

static void
print_function_pointer_address (CORE_ADDR address, struct ui_file *stream)
{
  CORE_ADDR func_addr = gdbarch_convert_from_func_ptr_addr (current_gdbarch,
							    address,
							    &current_target);

  /* If the function pointer is represented by a description, print the
     address of the description.  */
  if (addressprint && func_addr != address)
    {
      fputs_filtered ("@", stream);
      deprecated_print_address_numeric (address, 1, stream);
      fputs_filtered (": ", stream);
    }
  print_address_demangle (func_addr, stream, demangle);
}


/* 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 (struct type *type, const gdb_byte *valaddr, int embedded_offset,
	     CORE_ADDR address, struct ui_file *stream, int format,
	     int deref_ref, int recurse, enum val_prettyprint pretty)
{
  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_function_pointer_address (addr, stream);
	  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:

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

	  if (addressprint && format != 's')
	    {
	      deprecated_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_PRINT_NAME (msymbol), stream);
		  fputs_filtered (">", stream);
		}
	      if (vt_address && vtblprint)
		{
		  struct value *vt_val;
		  struct symbol *wsym = (struct symbol *) NULL;
		  struct type *wtype;
		  struct block *block = (struct block *) NULL;
		  int is_this_fld;

		  if (msymbol != NULL)
		    wsym = lookup_symbol (DEPRECATED_SYMBOL_NAME (msymbol), block,
					  VAR_DOMAIN, &is_this_fld, NULL);

		  if (wsym)
		    {
		      wtype = SYMBOL_TYPE (wsym);
		    }
		  else
		    {
		      wtype = TYPE_TARGET_TYPE (type);
		    }
		  vt_val = value_at (wtype, vt_address);
		  common_val_print (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, "@");
	  deprecated_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)
	    {
	      struct value *deref_val =
	      value_at
	      (TYPE_TARGET_TYPE (type),
	       unpack_pointer (lookup_pointer_type (builtin_type_void),
			       valaddr + embedded_offset));
	      common_val_print (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:
      /*FIXME: Abstract this away */
      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_function_pointer_address (addr, stream);
	}
      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_FLAGS:
      if (format)
	  print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
      else
	val_print_type_code_flags (type, valaddr + embedded_offset, stream);
      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:
      {
	struct value *v = value_at (type, address);
	cp_print_class_method (value_contents (value_addr (v)),
			       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;

    case TYPE_CODE_COMPLEX:
      if (format)
	print_scalar_formatted (valaddr + embedded_offset,
				TYPE_TARGET_TYPE (type),
				format, 0, stream);
      else
	print_floating (valaddr + embedded_offset, TYPE_TARGET_TYPE (type),
			stream);
      fprintf_filtered (stream, " + ");
      if (format)
	print_scalar_formatted (valaddr + embedded_offset
				+ TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
				TYPE_TARGET_TYPE (type),
				format, 0, stream);
      else
	print_floating (valaddr + embedded_offset
			+ TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
			TYPE_TARGET_TYPE (type),
			stream);
      fprintf_filtered (stream, " * I");
      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 (struct value *val, struct ui_file *stream, int format,
	       enum val_prettyprint pretty)
{
  struct type *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.  */

  type = check_typedef (value_type (val));

  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
	  && strcmp (TYPE_NAME (TYPE_TARGET_TYPE (type)), "char") == 0)
	{
	  /* 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
	       */
	      struct value *temparg;
	      temparg=value_copy(val);
	      deprecated_set_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. */
	      /* NOTE: cagney/2005-01-02: THIS IS BOGUS.  */
              value_contents_writeable (val)[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 (value_type (val), "", stream, -1);
	  fprintf_filtered (stream, ") ");
	}
    }

  if (objectprint && (TYPE_CODE (type) == 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 != check_typedef (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) + value_offset (val),
		    stream, format, 1, 0, pretty);
}
Commit	Line	Data
c906108c	1	/* Support for printing C values for GDB, the GNU debugger.
1bac305b	2
197e01b6	3	Copyright (C) 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996,
4f2aea11 MK	4	1997, 1998, 1999, 2000, 2001, 2003, 2005, 2006
4f2aea11 MK	5	Free Software Foundation, Inc.
c906108c	6
c5aa993b	7	This file is part of GDB.
c906108c	8
c5aa993b JM	9	This program is free software; you can redistribute it and/or modify
	10	it under the terms of the GNU General Public License as published by
	11	the Free Software Foundation; either version 2 of the License, or
	12	(at your option) any later version.
c906108c	13
c5aa993b JM	14	This program is distributed in the hope that it will be useful,
	15	but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	GNU General Public License for more details.
c906108c	18
c5aa993b JM	19	You should have received a copy of the GNU General Public License
c5aa993b JM	20	along with this program; if not, write to the Free Software
197e01b6 EZ	21	Foundation, Inc., 51 Franklin Street, Fifth Floor,
197e01b6 EZ	22	Boston, MA 02110-1301, USA. */
c906108c SS	23
c906108c SS	24	#include "defs.h"
309367d4	25	#include "gdb_string.h"
c906108c SS	26	#include "symtab.h"
	27	#include "gdbtypes.h"
	28	#include "expression.h"
	29	#include "value.h"
c906108c SS	30	#include "valprint.h"
	31	#include "language.h"
	32	#include "c-lang.h"
015a42b4	33	#include "cp-abi.h"
e2d0e7eb	34	#include "target.h"
c906108c	35	\f
c5aa993b	36
6e778545 PS	37	/* Print function pointer with inferior address ADDRESS onto stdio
	38	stream STREAM. */
	39
	40	static void
	41	print_function_pointer_address (CORE_ADDR address, struct ui_file *stream)
	42	{
e2d0e7eb AC	43	CORE_ADDR func_addr = gdbarch_convert_from_func_ptr_addr (current_gdbarch,
	44	address,
	45	&current_target);
6e778545 PS	46
	47	/* If the function pointer is represented by a description, print the
	48	address of the description. */
	49	if (addressprint && func_addr != address)
	50	{
	51	fputs_filtered ("@", stream);
66bf4b3a	52	deprecated_print_address_numeric (address, 1, stream);
6e778545 PS	53	fputs_filtered (": ", stream);
	54	}
	55	print_address_demangle (func_addr, stream, demangle);
	56	}
	57
	58
c906108c SS	59	/* Print data of type TYPE located at VALADDR (within GDB), which came from
	60	the inferior at address ADDRESS, onto stdio stream STREAM according to
	61	FORMAT (a letter or 0 for natural format). The data at VALADDR is in
	62	target byte order.
	63
	64	If the data are a string pointer, returns the number of string characters
	65	printed.
	66
	67	If DEREF_REF is nonzero, then dereference references, otherwise just print
	68	them like pointers.
	69
	70	The PRETTY parameter controls prettyprinting. */
	71
	72	int
fc1a4b47	73	c_val_print (struct type type, const gdb_byte valaddr, int embedded_offset,
fba45db2 KB	74	CORE_ADDR address, struct ui_file *stream, int format,
fba45db2 KB	75	int deref_ref, int recurse, enum val_prettyprint pretty)
c906108c	76	{
52f0bd74	77	unsigned int i = 0; /* Number of characters printed */
c906108c SS	78	unsigned len;
	79	struct type *elttype;
	80	unsigned eltlen;
	81	LONGEST val;
	82	CORE_ADDR addr;
	83
	84	CHECK_TYPEDEF (type);
	85	switch (TYPE_CODE (type))
	86	{
	87	case TYPE_CODE_ARRAY:
	88	elttype = check_typedef (TYPE_TARGET_TYPE (type));
	89	if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0)
	90	{
	91	eltlen = TYPE_LENGTH (elttype);
	92	len = TYPE_LENGTH (type) / eltlen;
	93	if (prettyprint_arrays)
	94	{
	95	print_spaces_filtered (2 + 2 * recurse, stream);
	96	}
	97	/* For an array of chars, print with string syntax. */
	98	if (eltlen == 1 &&
	99	((TYPE_CODE (elttype) == TYPE_CODE_INT)
	100	\|\| ((current_language->la_language == language_m2)
	101	&& (TYPE_CODE (elttype) == TYPE_CODE_CHAR)))
	102	&& (format == 0 \|\| format == 's'))
	103	{
	104	/* If requested, look for the first null char and only print
c5aa993b	105	elements up to it. */
c906108c SS	106	if (stop_print_at_null)
c906108c SS	107	{
745b8ca0	108	unsigned int temp_len;
c5aa993b	109
c906108c SS	110	/* Look for a NULL char. */
	111	for (temp_len = 0;
	112	(valaddr + embedded_offset)[temp_len]
	113	&& temp_len < len && temp_len < print_max;
	114	temp_len++);
	115	len = temp_len;
	116	}
c5aa993b	117
c906108c SS	118	LA_PRINT_STRING (stream, valaddr + embedded_offset, len, eltlen, 0);
	119	i = len;
	120	}
	121	else
	122	{
	123	fprintf_filtered (stream, "{");
	124	/* If this is a virtual function table, print the 0th
c5aa993b	125	entry specially, and the rest of the members normally. */
c906108c SS	126	if (cp_is_vtbl_ptr_type (elttype))
	127	{
	128	i = 1;
3d263c1d	129	fprintf_filtered (stream, _("%d vtable entries"), len - 1);
c906108c SS	130	}
	131	else
	132	{
	133	i = 0;
	134	}
	135	val_print_array_elements (type, valaddr + embedded_offset, address, stream,
c5aa993b	136	format, deref_ref, recurse, pretty, i);
c906108c SS	137	fprintf_filtered (stream, "}");
	138	}
	139	break;
	140	}
	141	/* Array of unspecified length: treat like pointer to first elt. */
	142	addr = address;
	143	goto print_unpacked_pointer;
	144
	145	case TYPE_CODE_PTR:
	146	if (format && format != 's')
	147	{
	148	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	149	break;
	150	}
c5aa993b	151	if (vtblprint && cp_is_vtbl_ptr_type (type))
c906108c	152	{
c5aa993b	153	/* Print the unmangled name if desired. */
c906108c SS	154	/* Print vtable entry - we only get here if we ARE using
c906108c SS	155	-fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */
4478b372 JB	156	CORE_ADDR addr
4478b372 JB	157	= extract_typed_address (valaddr + embedded_offset, type);
6e778545	158	print_function_pointer_address (addr, stream);
c906108c SS	159	break;
	160	}
	161	elttype = check_typedef (TYPE_TARGET_TYPE (type));
	162	if (TYPE_CODE (elttype) == TYPE_CODE_METHOD)
	163	{
	164	cp_print_class_method (valaddr + embedded_offset, type, stream);
	165	}
	166	else if (TYPE_CODE (elttype) == TYPE_CODE_MEMBER)
	167	{
	168	cp_print_class_member (valaddr + embedded_offset,
	169	TYPE_DOMAIN_TYPE (TYPE_TARGET_TYPE (type)),
	170	stream, "&");
	171	}
	172	else
	173	{
	174	addr = unpack_pointer (type, valaddr + embedded_offset);
	175	print_unpacked_pointer:
c906108c SS	176
	177	if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
	178	{
	179	/* Try to print what function it points to. */
6e778545	180	print_function_pointer_address (addr, stream);
c906108c SS	181	/* Return value is irrelevant except for string pointers. */
	182	return (0);
	183	}
	184
	185	if (addressprint && format != 's')
	186	{
66bf4b3a	187	deprecated_print_address_numeric (addr, 1, stream);
c906108c SS	188	}
	189
	190	/* For a pointer to char or unsigned char, also print the string
	191	pointed to, unless pointer is null. */
	192	/* FIXME: need to handle wchar_t here... */
	193
	194	if (TYPE_LENGTH (elttype) == 1
	195	&& TYPE_CODE (elttype) == TYPE_CODE_INT
	196	&& (format == 0 \|\| format == 's')
	197	&& addr != 0)
	198	{
	199	i = val_print_string (addr, -1, TYPE_LENGTH (elttype), stream);
	200	}
c5aa993b JM	201	else if (cp_is_vtbl_member (type))
c5aa993b JM	202	{
c906108c SS	203	/* print vtbl's nicely */
	204	CORE_ADDR vt_address = unpack_pointer (type, valaddr + embedded_offset);
	205
	206	struct minimal_symbol *msymbol =
c5aa993b	207	lookup_minimal_symbol_by_pc (vt_address);
c906108c SS	208	if ((msymbol != NULL) &&
	209	(vt_address == SYMBOL_VALUE_ADDRESS (msymbol)))
	210	{
	211	fputs_filtered (" <", stream);
de5ad195	212	fputs_filtered (SYMBOL_PRINT_NAME (msymbol), stream);
c906108c SS	213	fputs_filtered (">", stream);
	214	}
	215	if (vt_address && vtblprint)
c5aa993b	216	{
6943961c	217	struct value *vt_val;
c5aa993b JM	218	struct symbol wsym = (struct symbol ) NULL;
c5aa993b JM	219	struct type *wtype;
c5aa993b	220	struct block block = (struct block ) NULL;
c906108c SS	221	int is_this_fld;
	222
	223	if (msymbol != NULL)
22abf04a	224	wsym = lookup_symbol (DEPRECATED_SYMBOL_NAME (msymbol), block,
cdef89d0	225	VAR_DOMAIN, &is_this_fld, NULL);
c5aa993b	226
c906108c SS	227	if (wsym)
c906108c SS	228	{
c5aa993b	229	wtype = SYMBOL_TYPE (wsym);
c906108c SS	230	}
	231	else
	232	{
c5aa993b	233	wtype = TYPE_TARGET_TYPE (type);
c906108c	234	}
00a4c844	235	vt_val = value_at (wtype, vt_address);
806048c6 DJ	236	common_val_print (vt_val, stream, format,
806048c6 DJ	237	deref_ref, recurse + 1, pretty);
c906108c SS	238	if (pretty)
	239	{
	240	fprintf_filtered (stream, "\n");
	241	print_spaces_filtered (2 + 2 * recurse, stream);
	242	}
c5aa993b JM	243	}
c5aa993b JM	244	}
c906108c SS	245
	246	/* Return number of characters printed, including the terminating
	247	'\0' if we reached the end. val_print_string takes care including
	248	the terminating '\0' if necessary. */
	249	return i;
	250	}
	251	break;
	252
	253	case TYPE_CODE_MEMBER:
3d263c1d	254	error (_("not implemented: member type in c_val_print"));
c906108c SS	255	break;
	256
	257	case TYPE_CODE_REF:
	258	elttype = check_typedef (TYPE_TARGET_TYPE (type));
	259	if (TYPE_CODE (elttype) == TYPE_CODE_MEMBER)
c5aa993b	260	{
c906108c SS	261	cp_print_class_member (valaddr + embedded_offset,
	262	TYPE_DOMAIN_TYPE (elttype),
	263	stream, "");
	264	break;
	265	}
	266	if (addressprint)
c5aa993b	267	{
4478b372 JB	268	CORE_ADDR addr
4478b372 JB	269	= extract_typed_address (valaddr + embedded_offset, type);
c906108c	270	fprintf_filtered (stream, "@");
66bf4b3a	271	deprecated_print_address_numeric (addr, 1, stream);
c906108c SS	272	if (deref_ref)
c906108c SS	273	fputs_filtered (": ", stream);
c5aa993b	274	}
c906108c SS	275	/* De-reference the reference. */
	276	if (deref_ref)
	277	{
	278	if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
	279	{
6943961c	280	struct value *deref_val =
c5aa993b JM	281	value_at
	282	(TYPE_TARGET_TYPE (type),
	283	unpack_pointer (lookup_pointer_type (builtin_type_void),
00a4c844	284	valaddr + embedded_offset));
806048c6 DJ	285	common_val_print (deref_val, stream, format, deref_ref,
806048c6 DJ	286	recurse, pretty);
c906108c SS	287	}
	288	else
	289	fputs_filtered ("???", stream);
	290	}
	291	break;
	292
	293	case TYPE_CODE_UNION:
	294	if (recurse && !unionprint)
	295	{
	296	fprintf_filtered (stream, "{...}");
	297	break;
	298	}
	299	/* Fall through. */
	300	case TYPE_CODE_STRUCT:
015a42b4	301	/FIXME: Abstract this away /
c5aa993b	302	if (vtblprint && cp_is_vtbl_ptr_type (type))
c906108c	303	{
c5aa993b	304	/* Print the unmangled name if desired. */
c906108c SS	305	/* Print vtable entry - we only get here if NOT using
c906108c SS	306	-fvtable_thunks. (Otherwise, look under TYPE_CODE_PTR.) */
4478b372 JB	307	int offset = (embedded_offset +
	308	TYPE_FIELD_BITPOS (type, VTBL_FNADDR_OFFSET) / 8);
	309	struct type *field_type = TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET);
	310	CORE_ADDR addr
	311	= extract_typed_address (valaddr + offset, field_type);
	312
6e778545	313	print_function_pointer_address (addr, stream);
c906108c SS	314	}
	315	else
	316	cp_print_value_fields (type, type, valaddr, embedded_offset, address, stream, format,
	317	recurse, pretty, NULL, 0);
	318	break;
	319
	320	case TYPE_CODE_ENUM:
	321	if (format)
	322	{
	323	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	324	break;
	325	}
	326	len = TYPE_NFIELDS (type);
	327	val = unpack_long (type, valaddr + embedded_offset);
	328	for (i = 0; i < len; i++)
	329	{
	330	QUIT;
	331	if (val == TYPE_FIELD_BITPOS (type, i))
	332	{
	333	break;
	334	}
	335	}
	336	if (i < len)
	337	{
	338	fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
	339	}
	340	else
	341	{
	342	print_longest (stream, 'd', 0, val);
	343	}
	344	break;
	345
4f2aea11 MK	346	case TYPE_CODE_FLAGS:
	347	if (format)
	348	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	349	else
	350	val_print_type_code_flags (type, valaddr + embedded_offset, stream);
	351	break;
	352
c906108c SS	353	case TYPE_CODE_FUNC:
	354	if (format)
	355	{
	356	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	357	break;
	358	}
	359	/* FIXME, we should consider, at least for ANSI C language, eliminating
c5aa993b	360	the distinction made between FUNCs and POINTERs to FUNCs. */
c906108c SS	361	fprintf_filtered (stream, "{");
	362	type_print (type, "", stream, -1);
	363	fprintf_filtered (stream, "} ");
	364	/* Try to print what function it points to, and its address. */
	365	print_address_demangle (address, stream, demangle);
	366	break;
	367
	368	case TYPE_CODE_BOOL:
	369	format = format ? format : output_format;
	370	if (format)
	371	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	372	else
	373	{
	374	val = unpack_long (type, valaddr + embedded_offset);
	375	if (val == 0)
	376	fputs_filtered ("false", stream);
	377	else if (val == 1)
	378	fputs_filtered ("true", stream);
	379	else
	380	print_longest (stream, 'd', 0, val);
	381	}
	382	break;
	383
	384	case TYPE_CODE_RANGE:
	385	/* FIXME: create_range_type does not set the unsigned bit in a
c5aa993b JM	386	range type (I think it probably should copy it from the target
	387	type), so we won't print values which are too large to
	388	fit in a signed integer correctly. */
c906108c	389	/* FIXME: Doesn't handle ranges of enums correctly. (Can't just
c5aa993b JM	390	print with the target type, though, because the size of our type
c5aa993b JM	391	and the target type might differ). */
c906108c SS	392	/* FALLTHROUGH */
	393
	394	case TYPE_CODE_INT:
	395	format = format ? format : output_format;
	396	if (format)
	397	{
	398	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	399	}
	400	else
	401	{
	402	val_print_type_code_int (type, valaddr + embedded_offset, stream);
	403	/* C and C++ has no single byte int type, char is used instead.
	404	Since we don't know whether the value is really intended to
	405	be used as an integer or a character, print the character
	406	equivalent as well. */
	407	if (TYPE_LENGTH (type) == 1)
	408	{
	409	fputs_filtered (" ", stream);
	410	LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr + embedded_offset),
	411	stream);
	412	}
	413	}
	414	break;
	415
	416	case TYPE_CODE_CHAR:
	417	format = format ? format : output_format;
	418	if (format)
	419	{
	420	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	421	}
	422	else
	423	{
96baa820 JM	424	val = unpack_long (type, valaddr + embedded_offset);
	425	if (TYPE_UNSIGNED (type))
	426	fprintf_filtered (stream, "%u", (unsigned int) val);
	427	else
	428	fprintf_filtered (stream, "%d", (int) val);
c906108c	429	fputs_filtered (" ", stream);
96baa820	430	LA_PRINT_CHAR ((unsigned char) val, stream);
c906108c SS	431	}
	432	break;
	433
	434	case TYPE_CODE_FLT:
	435	if (format)
	436	{
	437	print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
	438	}
	439	else
	440	{
	441	print_floating (valaddr + embedded_offset, type, stream);
	442	}
	443	break;
	444
	445	case TYPE_CODE_METHOD:
acf5ed49	446	{
00a4c844	447	struct value *v = value_at (type, address);
0fd88904	448	cp_print_class_method (value_contents (value_addr (v)),
acf5ed49 DJ	449	lookup_pointer_type (type), stream);
	450	break;
	451	}
c906108c SS	452
	453	case TYPE_CODE_VOID:
	454	fprintf_filtered (stream, "void");
	455	break;
	456
	457	case TYPE_CODE_ERROR:
3d263c1d	458	fprintf_filtered (stream, _("<error type>"));
c906108c SS	459	break;
	460
	461	case TYPE_CODE_UNDEF:
	462	/* This happens (without TYPE_FLAG_STUB set) on systems which don't use
c5aa993b JM	463	dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
c5aa993b JM	464	and no complete type for struct foo in that file. */
3d263c1d	465	fprintf_filtered (stream, _("<incomplete type>"));
c906108c SS	466	break;
c906108c SS	467
fca9e603 DJ	468	case TYPE_CODE_COMPLEX:
	469	if (format)
	470	print_scalar_formatted (valaddr + embedded_offset,
	471	TYPE_TARGET_TYPE (type),
	472	format, 0, stream);
	473	else
	474	print_floating (valaddr + embedded_offset, TYPE_TARGET_TYPE (type),
	475	stream);
	476	fprintf_filtered (stream, " + ");
	477	if (format)
	478	print_scalar_formatted (valaddr + embedded_offset
	479	+ TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
	480	TYPE_TARGET_TYPE (type),
	481	format, 0, stream);
	482	else
	483	print_floating (valaddr + embedded_offset
	484	+ TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
	485	TYPE_TARGET_TYPE (type),
	486	stream);
	487	fprintf_filtered (stream, " * I");
	488	break;
	489
c906108c	490	default:
3d263c1d	491	error (_("Invalid C/C++ type code %d in symbol table."), TYPE_CODE (type));
c906108c SS	492	}
	493	gdb_flush (stream);
	494	return (0);
	495	}
	496	\f
	497	int
6943961c	498	c_value_print (struct value val, struct ui_file stream, int format,
fba45db2	499	enum val_prettyprint pretty)
c906108c	500	{
88750304	501	struct type type, real_type;
c906108c	502	int full, top, using_enc;
c5aa993b	503
c906108c SS	504	/* If it is a pointer, indicate what it points to.
	505
	506	Print type also if it is a reference.
	507
	508	C++: if it is a member pointer, we will take care
	509	of that when we print it. */
88750304 DJ	510
	511	type = check_typedef (value_type (val));
	512
	513	if (TYPE_CODE (type) == TYPE_CODE_PTR
	514	\|\| TYPE_CODE (type) == TYPE_CODE_REF)
c906108c SS	515	{
c906108c SS	516	/* Hack: remove (char *) for char strings. Their
c5aa993b	517	type is indicated by the quoted string anyway. */
88750304 DJ	518	if (TYPE_CODE (type) == TYPE_CODE_PTR
	519	&& TYPE_NAME (type) == NULL
	520	&& TYPE_NAME (TYPE_TARGET_TYPE (type)) != NULL
	521	&& strcmp (TYPE_NAME (TYPE_TARGET_TYPE (type)), "char") == 0)
c906108c SS	522	{
	523	/* Print nothing */
	524	}
	525	else if (objectprint && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CLASS))
c5aa993b	526	{
070ad9f0 DB	527
	528	if (TYPE_CODE(type) == TYPE_CODE_REF)
	529	{
	530	/* Copy value, change to pointer, so we don't get an
	531	* error about a non-pointer type in value_rtti_target_type
	532	*/
6943961c	533	struct value *temparg;
070ad9f0	534	temparg=value_copy(val);
04624583	535	deprecated_set_value_type (temparg, lookup_pointer_type (TYPE_TARGET_TYPE(type)));
070ad9f0 DB	536	val=temparg;
070ad9f0 DB	537	}
c5aa993b	538	/* Pointer to class, check real type of object */
c906108c	539	fprintf_filtered (stream, "(");
c4093a6a JM	540	real_type = value_rtti_target_type (val, &full, &top, &using_enc);
c4093a6a JM	541	if (real_type)
c5aa993b JM	542	{
c5aa993b JM	543	/* RTTI entry found */
c4093a6a JM	544	if (TYPE_CODE (type) == TYPE_CODE_PTR)
	545	{
	546	/* create a pointer type pointing to the real type */
	547	type = lookup_pointer_type (real_type);
	548	}
	549	else
	550	{
	551	/* create a reference type referencing the real type */
	552	type = lookup_reference_type (real_type);
	553	}
070ad9f0	554	/* JYG: Need to adjust pointer value. */
5086187c AC	555	/* NOTE: cagney/2005-01-02: THIS IS BOGUS. */
5086187c AC	556	value_contents_writeable (val)[0] -= top;
070ad9f0	557
c4093a6a JM	558	/* Note: When we look up RTTI entries, we don't get any
	559	information on const or volatile attributes */
	560	}
	561	type_print (type, "", stream, -1);
c906108c	562	fprintf_filtered (stream, ") ");
c5aa993b	563	}
c906108c SS	564	else
c906108c SS	565	{
c5aa993b	566	/* normal case */
c906108c	567	fprintf_filtered (stream, "(");
88750304	568	type_print (value_type (val), "", stream, -1);
c906108c SS	569	fprintf_filtered (stream, ") ");
	570	}
	571	}
88750304 DJ	572
88750304 DJ	573	if (objectprint && (TYPE_CODE (type) == TYPE_CODE_CLASS))
c906108c SS	574	{
	575	/* Attempt to determine real type of object */
	576	real_type = value_rtti_type (val, &full, &top, &using_enc);
c5aa993b JM	577	if (real_type)
	578	{
	579	/* We have RTTI information, so use it */
	580	val = value_full_object (val, real_type, full, top, using_enc);
	581	fprintf_filtered (stream, "(%s%s) ",
	582	TYPE_NAME (real_type),
3d263c1d	583	full ? "" : _(" [incomplete object]"));
c5aa993b	584	/* Print out object: enclosing type is same as real_type if full */
46615f07 AC	585	return val_print (value_enclosing_type (val),
	586	value_contents_all (val), 0,
	587	VALUE_ADDRESS (val), stream, format, 1, 0, pretty);
c4093a6a JM	588	/* Note: When we look up RTTI entries, we don't get any information on
c4093a6a JM	589	const or volatile attributes */
c5aa993b	590	}
88750304	591	else if (type != check_typedef (value_enclosing_type (val)))
c5aa993b JM	592	{
	593	/* No RTTI information, so let's do our best */
	594	fprintf_filtered (stream, "(%s ?) ",
4754a64e	595	TYPE_NAME (value_enclosing_type (val)));
46615f07 AC	596	return val_print (value_enclosing_type (val),
	597	value_contents_all (val), 0,
	598	VALUE_ADDRESS (val), stream, format, 1, 0, pretty);
c5aa993b	599	}
c906108c SS	600	/* Otherwise, we end up at the return outside this "if" */
c906108c SS	601	}
c5aa993b	602
46615f07	603	return val_print (type, value_contents_all (val),
13c3b5f5	604	value_embedded_offset (val),
df407dfe	605	VALUE_ADDRESS (val) + value_offset (val),
c906108c SS	606	stream, format, 1, 0, pretty);
c906108c SS	607	}