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

/* Support for printing Java values for GDB, the GNU debugger.
   Copyright 1997, 1998, 1999, 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 "gdbcore.h"
#include "expression.h"
#include "value.h"
#include "demangle.h"
#include "valprint.h"
#include "language.h"
#include "jv-lang.h"
#include "c-lang.h"
#include "annotate.h"
#include "gdb_string.h"

/* Local functions */

static void java_print_value_fields (struct type * type, char *valaddr,
				     CORE_ADDR address,
				     struct ui_file *stream, int format,
				     int recurse,
				     enum val_prettyprint pretty);


int
java_value_print (struct value *val, struct ui_file *stream, int format,
		  enum val_prettyprint pretty)
{
  struct type *type;
  CORE_ADDR address;
  int i;
  char *name;

  type = VALUE_TYPE (val);
  address = VALUE_ADDRESS (val) + VALUE_OFFSET (val);

  if (is_object_type (type))
    {
      CORE_ADDR obj_addr;

      /* Get the run-time type, and cast the object into that */

      obj_addr = unpack_pointer (type, VALUE_CONTENTS (val));

      if (obj_addr != 0)
	{
	  type = type_from_class (java_class_from_object (val));
	  type = lookup_pointer_type (type);

	  val = value_at (type, address, NULL);
	}
    }

  if (TYPE_CODE (type) == TYPE_CODE_PTR && !value_logical_not (val))
    type_print (TYPE_TARGET_TYPE (type), "", stream, -1);

  name = TYPE_TAG_NAME (type);
  if (TYPE_CODE (type) == TYPE_CODE_STRUCT && name != NULL
      && (i = strlen (name), name[i - 1] == ']'))
    {
      char buf4[4];
      long length;
      unsigned int things_printed = 0;
      int reps;
      struct type *el_type = java_primitive_type_from_name (name, i - 2);

      i = 0;
      read_memory (address + JAVA_OBJECT_SIZE, buf4, 4);

      length = (long) extract_signed_integer (buf4, 4);
      fprintf_filtered (stream, "{length: %ld", length);

      if (el_type == NULL)
	{
	  CORE_ADDR element;
	  CORE_ADDR next_element = -1; /* dummy initial value */

	  address += JAVA_OBJECT_SIZE + 4;	/* Skip object header and length. */

	  while (i < length && things_printed < print_max)
	    {
	      char *buf;

	      buf = alloca (TARGET_PTR_BIT / HOST_CHAR_BIT);
	      fputs_filtered (", ", stream);
	      wrap_here (n_spaces (2));

	      if (i > 0)
		element = next_element;
	      else
		{
		  read_memory (address, buf, sizeof (buf));
		  address += TARGET_PTR_BIT / HOST_CHAR_BIT;
		  element = extract_address (buf, sizeof (buf));
		}

	      for (reps = 1; i + reps < length; reps++)
		{
		  read_memory (address, buf, sizeof (buf));
		  address += TARGET_PTR_BIT / HOST_CHAR_BIT;
		  next_element = extract_address (buf, sizeof (buf));
		  if (next_element != element)
		    break;
		}

	      if (reps == 1)
		fprintf_filtered (stream, "%d: ", i);
	      else
		fprintf_filtered (stream, "%d..%d: ", i, i + reps - 1);

	      if (element == 0)
		fprintf_filtered (stream, "null");
	      else
		fprintf_filtered (stream, "@%s", paddr_nz (element));

	      things_printed++;
	      i += reps;
	    }
	}
      else
	{
	  struct value *v = allocate_value (el_type);
	  struct value *next_v = allocate_value (el_type);

	  VALUE_ADDRESS (v) = address + JAVA_OBJECT_SIZE + 4;
	  VALUE_ADDRESS (next_v) = VALUE_ADDRESS (v);

	  while (i < length && things_printed < print_max)
	    {
	      fputs_filtered (", ", stream);
	      wrap_here (n_spaces (2));

	      if (i > 0)
		{
		  struct value *tmp;

		  tmp = next_v;
		  next_v = v;
		  v = tmp;
		}
	      else
		{
		  VALUE_LAZY (v) = 1;
		  VALUE_OFFSET (v) = 0;
		}

	      VALUE_OFFSET (next_v) = VALUE_OFFSET (v);

	      for (reps = 1; i + reps < length; reps++)
		{
		  VALUE_LAZY (next_v) = 1;
		  VALUE_OFFSET (next_v) += TYPE_LENGTH (el_type);
		  if (memcmp (VALUE_CONTENTS (v), VALUE_CONTENTS (next_v),
			      TYPE_LENGTH (el_type)) != 0)
		    break;
		}

	      if (reps == 1)
		fprintf_filtered (stream, "%d: ", i);
	      else
		fprintf_filtered (stream, "%d..%d: ", i, i + reps - 1);

	      val_print (VALUE_TYPE (v), VALUE_CONTENTS (v), 0, 0,
			 stream, format, 2, 1, pretty);

	      things_printed++;
	      i += reps;
	    }
	}

      if (i < length)
	fprintf_filtered (stream, "...");

      fprintf_filtered (stream, "}");

      return 0;
    }

  /* If it's type String, print it */

  if (TYPE_CODE (type) == TYPE_CODE_PTR
      && TYPE_TARGET_TYPE (type)
      && TYPE_TAG_NAME (TYPE_TARGET_TYPE (type))
      && strcmp (TYPE_TAG_NAME (TYPE_TARGET_TYPE (type)),
		 "java.lang.String") == 0
      && (format == 0 || format == 's')
      && address != 0
      && value_as_address (val) != 0)
    {
      struct value *data_val;
      CORE_ADDR data;
      struct value *boffset_val;
      unsigned long boffset;
      struct value *count_val;
      unsigned long count;
      struct value *mark;

      mark = value_mark ();	/* Remember start of new values */

      data_val = value_struct_elt (&val, NULL, "data", NULL, NULL);
      data = value_as_address (data_val);

      boffset_val = value_struct_elt (&val, NULL, "boffset", NULL, NULL);
      boffset = value_as_address (boffset_val);

      count_val = value_struct_elt (&val, NULL, "count", NULL, NULL);
      count = value_as_address (count_val);

      value_free_to_mark (mark);	/* Release unnecessary values */

      val_print_string (data + boffset, count, 2, stream);

      return 0;
    }

  return (val_print (type, VALUE_CONTENTS (val), 0, address,
		     stream, format, 1, 0, pretty));
}

/* TYPE, VALADDR, ADDRESS, STREAM, RECURSE, and PRETTY have the
   same meanings as in cp_print_value and c_val_print.

   DONT_PRINT is an array of baseclass types that we
   should not print, or zero if called from top level.  */

static void
java_print_value_fields (struct type *type, char *valaddr, CORE_ADDR address,
			 struct ui_file *stream, int format, int recurse,
			 enum val_prettyprint pretty)
{
  int i, len, n_baseclasses;

  CHECK_TYPEDEF (type);

  fprintf_filtered (stream, "{");
  len = TYPE_NFIELDS (type);
  n_baseclasses = TYPE_N_BASECLASSES (type);

  if (n_baseclasses > 0)
    {
      int i, n_baseclasses = TYPE_N_BASECLASSES (type);

      for (i = 0; i < n_baseclasses; i++)
	{
	  int boffset;
	  struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i));
	  char *basename = TYPE_NAME (baseclass);
	  char *base_valaddr;

	  if (BASETYPE_VIA_VIRTUAL (type, i))
	    continue;

	  if (basename != NULL && strcmp (basename, "java.lang.Object") == 0)
	    continue;

	  boffset = 0;

	  if (pretty)
	    {
	      fprintf_filtered (stream, "\n");
	      print_spaces_filtered (2 * (recurse + 1), stream);
	    }
	  fputs_filtered ("<", stream);
	  /* Not sure what the best notation is in the case where there is no
	     baseclass name.  */
	  fputs_filtered (basename ? basename : "", stream);
	  fputs_filtered ("> = ", stream);

	  base_valaddr = valaddr;

	  java_print_value_fields (baseclass, base_valaddr, address + boffset,
				   stream, format, recurse + 1, pretty);
	  fputs_filtered (", ", stream);

	flush_it:
	  ;
	}

    }

  if (!len && n_baseclasses == 1)
    fprintf_filtered (stream, "<No data fields>");
  else
    {
      int fields_seen = 0;

      for (i = n_baseclasses; i < len; i++)
	{
	  /* If requested, skip printing of static fields.  */
	  if (TYPE_FIELD_STATIC (type, i))
	    {
	      char *name = TYPE_FIELD_NAME (type, i);
	      if (!static_field_print)
		continue;
	      if (name != NULL && strcmp (name, "class") == 0)
		continue;
	    }
	  if (fields_seen)
	    fprintf_filtered (stream, ", ");
	  else if (n_baseclasses > 0)
	    {
	      if (pretty)
		{
		  fprintf_filtered (stream, "\n");
		  print_spaces_filtered (2 + 2 * recurse, stream);
		  fputs_filtered ("members of ", stream);
		  fputs_filtered (type_name_no_tag (type), stream);
		  fputs_filtered (": ", stream);
		}
	    }
	  fields_seen = 1;

	  if (pretty)
	    {
	      fprintf_filtered (stream, "\n");
	      print_spaces_filtered (2 + 2 * recurse, stream);
	    }
	  else
	    {
	      wrap_here (n_spaces (2 + 2 * recurse));
	    }
	  if (inspect_it)
	    {
	      if (TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_PTR)
		fputs_filtered ("\"( ptr \"", stream);
	      else
		fputs_filtered ("\"( nodef \"", stream);
	      if (TYPE_FIELD_STATIC (type, i))
		fputs_filtered ("static ", stream);
	      fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
				       language_cplus,
				       DMGL_PARAMS | DMGL_ANSI);
	      fputs_filtered ("\" \"", stream);
	      fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
				       language_cplus,
				       DMGL_PARAMS | DMGL_ANSI);
	      fputs_filtered ("\") \"", stream);
	    }
	  else
	    {
	      annotate_field_begin (TYPE_FIELD_TYPE (type, i));

	      if (TYPE_FIELD_STATIC (type, i))
		fputs_filtered ("static ", stream);
	      fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
				       language_cplus,
				       DMGL_PARAMS | DMGL_ANSI);
	      annotate_field_name_end ();
	      fputs_filtered (": ", stream);
	      annotate_field_value ();
	    }

	  if (!TYPE_FIELD_STATIC (type, i) && TYPE_FIELD_PACKED (type, i))
	    {
	      struct value *v;

	      /* Bitfields require special handling, especially due to byte
	         order problems.  */
	      if (TYPE_FIELD_IGNORE (type, i))
		{
		  fputs_filtered ("<optimized out or zero length>", stream);
		}
	      else
		{
		  v = value_from_longest (TYPE_FIELD_TYPE (type, i),
				   unpack_field_as_long (type, valaddr, i));

		  val_print (TYPE_FIELD_TYPE (type, i), VALUE_CONTENTS (v), 0,
			     0, stream, format, 0, recurse + 1, pretty);
		}
	    }
	  else
	    {
	      if (TYPE_FIELD_IGNORE (type, i))
		{
		  fputs_filtered ("<optimized out or zero length>", stream);
		}
	      else if (TYPE_FIELD_STATIC (type, i))
		{
		  struct value *v = value_static_field (type, i);
		  if (v == NULL)
		    fputs_filtered ("<optimized out>", stream);
		  else
		    {
		      struct type *t = check_typedef (VALUE_TYPE (v));
		      if (TYPE_CODE (t) == TYPE_CODE_STRUCT)
			v = value_addr (v);
		      val_print (VALUE_TYPE (v),
				 VALUE_CONTENTS (v), 0, VALUE_ADDRESS (v),
				 stream, format, 0, recurse + 1, pretty);
		    }
		}
	      else if (TYPE_FIELD_TYPE (type, i) == NULL)
		fputs_filtered ("<unknown type>", stream);
	      else
		{
		  val_print (TYPE_FIELD_TYPE (type, i),
			     valaddr + TYPE_FIELD_BITPOS (type, i) / 8, 0,
			     address + TYPE_FIELD_BITPOS (type, i) / 8,
			     stream, format, 0, recurse + 1, pretty);
		}
	    }
	  annotate_field_end ();
	}

      if (pretty)
	{
	  fprintf_filtered (stream, "\n");
	  print_spaces_filtered (2 * recurse, stream);
	}
    }
  fprintf_filtered (stream, "}");
}

/* 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
java_val_print (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 */
  struct type *target_type;
  CORE_ADDR addr;

  CHECK_TYPEDEF (type);
  switch (TYPE_CODE (type))
    {
    case TYPE_CODE_PTR:
      if (format && format != 's')
	{
	  print_scalar_formatted (valaddr, type, format, 0, stream);
	  break;
	}
#if 0
      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, TYPE_LENGTH (type)),
				  stream, demangle);
	  break;
	}
#endif
      addr = unpack_pointer (type, valaddr);
      if (addr == 0)
	{
	  fputs_filtered ("null", stream);
	  return i;
	}
      target_type = check_typedef (TYPE_TARGET_TYPE (type));

      if (TYPE_CODE (target_type) == 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')
	{
	  fputs_filtered ("@", stream);
	  print_longest (stream, 'x', 0, (ULONGEST) addr);
	}

      return i;

    case TYPE_CODE_CHAR:
    case TYPE_CODE_INT:
      /* Can't just call c_val_print because that prints bytes as C
	 chars.  */
      format = format ? format : output_format;
      if (format)
	print_scalar_formatted (valaddr, type, format, 0, stream);
      else if (TYPE_CODE (type) == TYPE_CODE_CHAR
	       || (TYPE_CODE (type) == TYPE_CODE_INT
		   && TYPE_LENGTH (type) == 2
		   && strcmp (TYPE_NAME (type), "char") == 0))
	LA_PRINT_CHAR ((int) unpack_long (type, valaddr), stream);
      else
	val_print_type_code_int (type, valaddr, stream);
      break;

    case TYPE_CODE_STRUCT:
      java_print_value_fields (type, valaddr, address, stream, format,
			       recurse, pretty);
      break;

    default:
      return c_val_print (type, valaddr, embedded_offset, address, stream,
			  format, deref_ref, recurse, pretty);
    }

  return 0;
}
Commit	Line	Data
c906108c	1	/* Support for printing Java values for GDB, the GNU debugger.
b6ba6518	2	Copyright 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
c906108c	3
c5aa993b	4	This file is part of GDB.
c906108c	5
c5aa993b JM	6	This program is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 2 of the License, or
	9	(at your option) any later version.
c906108c	10
c5aa993b JM	11	This program is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
c906108c	15
c5aa993b JM	16	You should have received a copy of the GNU General Public License
	17	along with this program; if not, write to the Free Software
	18	Foundation, Inc., 59 Temple Place - Suite 330,
	19	Boston, MA 02111-1307, USA. */
c906108c SS	20
	21	#include "defs.h"
	22	#include "symtab.h"
	23	#include "gdbtypes.h"
7a292a7a	24	#include "gdbcore.h"
c906108c SS	25	#include "expression.h"
	26	#include "value.h"
	27	#include "demangle.h"
	28	#include "valprint.h"
	29	#include "language.h"
	30	#include "jv-lang.h"
	31	#include "c-lang.h"
7a292a7a	32	#include "annotate.h"
309367d4	33	#include "gdb_string.h"
c906108c	34
392a587b JM	35	/* Local functions */
392a587b JM	36
d9fcf2fb JM	37	static void java_print_value_fields (struct type * type, char *valaddr,
	38	CORE_ADDR address,
	39	struct ui_file *stream, int format,
	40	int recurse,
	41	enum val_prettyprint pretty);
392a587b JM	42
392a587b JM	43
c906108c	44	int
75c9979e	45	java_value_print (struct value val, struct ui_file stream, int format,
fba45db2	46	enum val_prettyprint pretty)
c906108c SS	47	{
	48	struct type *type;
	49	CORE_ADDR address;
	50	int i;
	51	char *name;
	52
	53	type = VALUE_TYPE (val);
	54	address = VALUE_ADDRESS (val) + VALUE_OFFSET (val);
	55
	56	if (is_object_type (type))
	57	{
	58	CORE_ADDR obj_addr;
	59
	60	/* Get the run-time type, and cast the object into that */
	61
	62	obj_addr = unpack_pointer (type, VALUE_CONTENTS (val));
	63
	64	if (obj_addr != 0)
	65	{
	66	type = type_from_class (java_class_from_object (val));
	67	type = lookup_pointer_type (type);
	68
	69	val = value_at (type, address, NULL);
	70	}
	71	}
	72
c5aa993b	73	if (TYPE_CODE (type) == TYPE_CODE_PTR && !value_logical_not (val))
c906108c SS	74	type_print (TYPE_TARGET_TYPE (type), "", stream, -1);
	75
	76	name = TYPE_TAG_NAME (type);
	77	if (TYPE_CODE (type) == TYPE_CODE_STRUCT && name != NULL
c5aa993b	78	&& (i = strlen (name), name[i - 1] == ']'))
c906108c SS	79	{
	80	char buf4[4];
	81	long length;
	82	unsigned int things_printed = 0;
c5aa993b	83	int reps;
c906108c SS	84	struct type *el_type = java_primitive_type_from_name (name, i - 2);
	85
	86	i = 0;
	87	read_memory (address + JAVA_OBJECT_SIZE, buf4, 4);
	88
	89	length = (long) extract_signed_integer (buf4, 4);
	90	fprintf_filtered (stream, "{length: %ld", length);
	91
	92	if (el_type == NULL)
	93	{
c65ecaf3 AC	94	CORE_ADDR element;
c65ecaf3 AC	95	CORE_ADDR next_element = -1; /* dummy initial value */
c906108c	96
c5aa993b	97	address += JAVA_OBJECT_SIZE + 4; /* Skip object header and length. */
c906108c SS	98
	99	while (i < length && things_printed < print_max)
	100	{
35fc8285	101	char *buf;
c906108c	102
35fc8285	103	buf = alloca (TARGET_PTR_BIT / HOST_CHAR_BIT);
c906108c SS	104	fputs_filtered (", ", stream);
	105	wrap_here (n_spaces (2));
	106
	107	if (i > 0)
	108	element = next_element;
	109	else
	110	{
c5aa993b	111	read_memory (address, buf, sizeof (buf));
c906108c	112	address += TARGET_PTR_BIT / HOST_CHAR_BIT;
c5aa993b	113	element = extract_address (buf, sizeof (buf));
c906108c SS	114	}
c906108c SS	115
c5aa993b	116	for (reps = 1; i + reps < length; reps++)
c906108c	117	{
c5aa993b	118	read_memory (address, buf, sizeof (buf));
c906108c	119	address += TARGET_PTR_BIT / HOST_CHAR_BIT;
c5aa993b	120	next_element = extract_address (buf, sizeof (buf));
c906108c SS	121	if (next_element != element)
	122	break;
	123	}
	124
	125	if (reps == 1)
	126	fprintf_filtered (stream, "%d: ", i);
	127	else
	128	fprintf_filtered (stream, "%d..%d: ", i, i + reps - 1);
	129
	130	if (element == 0)
	131	fprintf_filtered (stream, "null");
	132	else
d4f3574e	133	fprintf_filtered (stream, "@%s", paddr_nz (element));
c906108c SS	134
	135	things_printed++;
	136	i += reps;
	137	}
	138	}
	139	else
	140	{
75c9979e AC	141	struct value *v = allocate_value (el_type);
75c9979e AC	142	struct value *next_v = allocate_value (el_type);
c906108c SS	143
	144	VALUE_ADDRESS (v) = address + JAVA_OBJECT_SIZE + 4;
	145	VALUE_ADDRESS (next_v) = VALUE_ADDRESS (v);
	146
	147	while (i < length && things_printed < print_max)
	148	{
	149	fputs_filtered (", ", stream);
	150	wrap_here (n_spaces (2));
	151
	152	if (i > 0)
	153	{
75c9979e	154	struct value *tmp;
c906108c SS	155
	156	tmp = next_v;
	157	next_v = v;
	158	v = tmp;
	159	}
	160	else
	161	{
	162	VALUE_LAZY (v) = 1;
	163	VALUE_OFFSET (v) = 0;
	164	}
	165
	166	VALUE_OFFSET (next_v) = VALUE_OFFSET (v);
	167
c5aa993b	168	for (reps = 1; i + reps < length; reps++)
c906108c SS	169	{
	170	VALUE_LAZY (next_v) = 1;
	171	VALUE_OFFSET (next_v) += TYPE_LENGTH (el_type);
	172	if (memcmp (VALUE_CONTENTS (v), VALUE_CONTENTS (next_v),
	173	TYPE_LENGTH (el_type)) != 0)
	174	break;
	175	}
	176
	177	if (reps == 1)
	178	fprintf_filtered (stream, "%d: ", i);
	179	else
	180	fprintf_filtered (stream, "%d..%d: ", i, i + reps - 1);
	181
	182	val_print (VALUE_TYPE (v), VALUE_CONTENTS (v), 0, 0,
	183	stream, format, 2, 1, pretty);
	184
	185	things_printed++;
	186	i += reps;
	187	}
	188	}
	189
	190	if (i < length)
	191	fprintf_filtered (stream, "...");
	192
	193	fprintf_filtered (stream, "}");
	194
	195	return 0;
	196	}
	197
	198	/* If it's type String, print it */
	199
	200	if (TYPE_CODE (type) == TYPE_CODE_PTR
	201	&& TYPE_TARGET_TYPE (type)
d4cad8db TT	202	&& TYPE_TAG_NAME (TYPE_TARGET_TYPE (type))
	203	&& strcmp (TYPE_TAG_NAME (TYPE_TARGET_TYPE (type)),
	204	"java.lang.String") == 0
c906108c	205	&& (format == 0 \|\| format == 's')
8dccf761	206	&& address != 0
1aa20aa8	207	&& value_as_address (val) != 0)
c906108c	208	{
75c9979e	209	struct value *data_val;
c906108c	210	CORE_ADDR data;
75c9979e	211	struct value *boffset_val;
c906108c	212	unsigned long boffset;
75c9979e	213	struct value *count_val;
c906108c	214	unsigned long count;
75c9979e	215	struct value *mark;
c906108c SS	216
	217	mark = value_mark (); /* Remember start of new values */
	218
	219	data_val = value_struct_elt (&val, NULL, "data", NULL, NULL);
1aa20aa8	220	data = value_as_address (data_val);
c906108c SS	221
c906108c SS	222	boffset_val = value_struct_elt (&val, NULL, "boffset", NULL, NULL);
1aa20aa8	223	boffset = value_as_address (boffset_val);
c906108c SS	224
c906108c SS	225	count_val = value_struct_elt (&val, NULL, "count", NULL, NULL);
1aa20aa8	226	count = value_as_address (count_val);
c906108c	227
c5aa993b	228	value_free_to_mark (mark); /* Release unnecessary values */
c906108c SS	229
	230	val_print_string (data + boffset, count, 2, stream);
	231
	232	return 0;
	233	}
	234
	235	return (val_print (type, VALUE_CONTENTS (val), 0, address,
	236	stream, format, 1, 0, pretty));
	237	}
	238
	239	/* TYPE, VALADDR, ADDRESS, STREAM, RECURSE, and PRETTY have the
	240	same meanings as in cp_print_value and c_val_print.
	241
	242	DONT_PRINT is an array of baseclass types that we
	243	should not print, or zero if called from top level. */
	244
392a587b	245	static void
fba45db2 KB	246	java_print_value_fields (struct type type, char valaddr, CORE_ADDR address,
	247	struct ui_file *stream, int format, int recurse,
	248	enum val_prettyprint pretty)
c906108c SS	249	{
	250	int i, len, n_baseclasses;
	251
	252	CHECK_TYPEDEF (type);
	253
	254	fprintf_filtered (stream, "{");
	255	len = TYPE_NFIELDS (type);
	256	n_baseclasses = TYPE_N_BASECLASSES (type);
	257
	258	if (n_baseclasses > 0)
	259	{
	260	int i, n_baseclasses = TYPE_N_BASECLASSES (type);
	261
	262	for (i = 0; i < n_baseclasses; i++)
	263	{
	264	int boffset;
	265	struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i));
	266	char *basename = TYPE_NAME (baseclass);
	267	char *base_valaddr;
c5aa993b	268
c906108c SS	269	if (BASETYPE_VIA_VIRTUAL (type, i))
	270	continue;
	271
	272	if (basename != NULL && strcmp (basename, "java.lang.Object") == 0)
	273	continue;
	274
	275	boffset = 0;
	276
	277	if (pretty)
	278	{
	279	fprintf_filtered (stream, "\n");
c5aa993b	280	print_spaces_filtered (2 * (recurse + 1), stream);
c906108c SS	281	}
	282	fputs_filtered ("<", stream);
	283	/* Not sure what the best notation is in the case where there is no
	284	baseclass name. */
	285	fputs_filtered (basename ? basename : "", stream);
	286	fputs_filtered ("> = ", stream);
	287
	288	base_valaddr = valaddr;
	289
	290	java_print_value_fields (baseclass, base_valaddr, address + boffset,
c5aa993b	291	stream, format, recurse + 1, pretty);
c906108c	292	fputs_filtered (", ", stream);
c5aa993b	293
c906108c SS	294	flush_it:
	295	;
	296	}
	297
	298	}
	299
	300	if (!len && n_baseclasses == 1)
	301	fprintf_filtered (stream, "<No data fields>");
	302	else
	303	{
c906108c SS	304	int fields_seen = 0;
	305
	306	for (i = n_baseclasses; i < len; i++)
	307	{
	308	/* If requested, skip printing of static fields. */
	309	if (TYPE_FIELD_STATIC (type, i))
	310	{
	311	char *name = TYPE_FIELD_NAME (type, i);
	312	if (!static_field_print)
	313	continue;
	314	if (name != NULL && strcmp (name, "class") == 0)
	315	continue;
	316	}
	317	if (fields_seen)
	318	fprintf_filtered (stream, ", ");
	319	else if (n_baseclasses > 0)
	320	{
	321	if (pretty)
	322	{
	323	fprintf_filtered (stream, "\n");
	324	print_spaces_filtered (2 + 2 * recurse, stream);
	325	fputs_filtered ("members of ", stream);
	326	fputs_filtered (type_name_no_tag (type), stream);
	327	fputs_filtered (": ", stream);
	328	}
	329	}
	330	fields_seen = 1;
	331
	332	if (pretty)
	333	{
	334	fprintf_filtered (stream, "\n");
	335	print_spaces_filtered (2 + 2 * recurse, stream);
	336	}
c5aa993b	337	else
c906108c SS	338	{
	339	wrap_here (n_spaces (2 + 2 * recurse));
	340	}
	341	if (inspect_it)
	342	{
	343	if (TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_PTR)
	344	fputs_filtered ("\"( ptr \"", stream);
	345	else
	346	fputs_filtered ("\"( nodef \"", stream);
	347	if (TYPE_FIELD_STATIC (type, i))
	348	fputs_filtered ("static ", stream);
	349	fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
	350	language_cplus,
	351	DMGL_PARAMS \| DMGL_ANSI);
	352	fputs_filtered ("\" \"", stream);
	353	fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
	354	language_cplus,
	355	DMGL_PARAMS \| DMGL_ANSI);
	356	fputs_filtered ("\") \"", stream);
	357	}
	358	else
	359	{
	360	annotate_field_begin (TYPE_FIELD_TYPE (type, i));
	361
	362	if (TYPE_FIELD_STATIC (type, i))
	363	fputs_filtered ("static ", stream);
	364	fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
	365	language_cplus,
	366	DMGL_PARAMS \| DMGL_ANSI);
	367	annotate_field_name_end ();
	368	fputs_filtered (": ", stream);
	369	annotate_field_value ();
	370	}
	371
	372	if (!TYPE_FIELD_STATIC (type, i) && TYPE_FIELD_PACKED (type, i))
	373	{
75c9979e	374	struct value *v;
c906108c SS	375
c906108c SS	376	/* Bitfields require special handling, especially due to byte
c5aa993b	377	order problems. */
c906108c SS	378	if (TYPE_FIELD_IGNORE (type, i))
c906108c SS	379	{
c5aa993b	380	fputs_filtered ("<optimized out or zero length>", stream);
c906108c SS	381	}
	382	else
	383	{
c5aa993b	384	v = value_from_longest (TYPE_FIELD_TYPE (type, i),
c906108c SS	385	unpack_field_as_long (type, valaddr, i));
c906108c SS	386
c5aa993b JM	387	val_print (TYPE_FIELD_TYPE (type, i), VALUE_CONTENTS (v), 0,
c5aa993b JM	388	0, stream, format, 0, recurse + 1, pretty);
c906108c SS	389	}
	390	}
	391	else
	392	{
	393	if (TYPE_FIELD_IGNORE (type, i))
	394	{
c5aa993b	395	fputs_filtered ("<optimized out or zero length>", stream);
c906108c SS	396	}
	397	else if (TYPE_FIELD_STATIC (type, i))
	398	{
75c9979e	399	struct value *v = value_static_field (type, i);
c906108c SS	400	if (v == NULL)
	401	fputs_filtered ("<optimized out>", stream);
	402	else
	403	{
	404	struct type *t = check_typedef (VALUE_TYPE (v));
	405	if (TYPE_CODE (t) == TYPE_CODE_STRUCT)
	406	v = value_addr (v);
	407	val_print (VALUE_TYPE (v),
	408	VALUE_CONTENTS (v), 0, VALUE_ADDRESS (v),
c5aa993b	409	stream, format, 0, recurse + 1, pretty);
c906108c SS	410	}
c906108c SS	411	}
7a292a7a SS	412	else if (TYPE_FIELD_TYPE (type, i) == NULL)
7a292a7a SS	413	fputs_filtered ("<unknown type>", stream);
c906108c SS	414	else
c906108c SS	415	{
c5aa993b JM	416	val_print (TYPE_FIELD_TYPE (type, i),
	417	valaddr + TYPE_FIELD_BITPOS (type, i) / 8, 0,
	418	address + TYPE_FIELD_BITPOS (type, i) / 8,
	419	stream, format, 0, recurse + 1, pretty);
c906108c SS	420	}
	421	}
	422	annotate_field_end ();
	423	}
	424
	425	if (pretty)
	426	{
	427	fprintf_filtered (stream, "\n");
	428	print_spaces_filtered (2 * recurse, stream);
	429	}
	430	}
	431	fprintf_filtered (stream, "}");
	432	}
	433
	434	/* Print data of type TYPE located at VALADDR (within GDB), which came from
	435	the inferior at address ADDRESS, onto stdio stream STREAM according to
	436	FORMAT (a letter or 0 for natural format). The data at VALADDR is in
	437	target byte order.
	438
	439	If the data are a string pointer, returns the number of string characters
	440	printed.
	441
	442	If DEREF_REF is nonzero, then dereference references, otherwise just print
	443	them like pointers.
	444
	445	The PRETTY parameter controls prettyprinting. */
	446
	447	int
fba45db2 KB	448	java_val_print (struct type type, char valaddr, int embedded_offset,
	449	CORE_ADDR address, struct ui_file *stream, int format,
	450	int deref_ref, int recurse, enum val_prettyprint pretty)
c906108c	451	{
c5aa993b	452	register unsigned int i = 0; /* Number of characters printed */
c906108c SS	453	struct type *target_type;
	454	CORE_ADDR addr;
	455
	456	CHECK_TYPEDEF (type);
	457	switch (TYPE_CODE (type))
	458	{
	459	case TYPE_CODE_PTR:
	460	if (format && format != 's')
	461	{
	462	print_scalar_formatted (valaddr, type, format, 0, stream);
	463	break;
	464	}
	465	#if 0
c5aa993b	466	if (vtblprint && cp_is_vtbl_ptr_type (type))
c906108c	467	{
c5aa993b	468	/* Print the unmangled name if desired. */
c906108c SS	469	/* Print vtable entry - we only get here if we ARE using
c906108c SS	470	-fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */
c5aa993b JM	471	print_address_demangle (extract_address (valaddr, TYPE_LENGTH (type)),
c5aa993b JM	472	stream, demangle);
c906108c SS	473	break;
	474	}
	475	#endif
	476	addr = unpack_pointer (type, valaddr);
	477	if (addr == 0)
	478	{
	479	fputs_filtered ("null", stream);
	480	return i;
	481	}
	482	target_type = check_typedef (TYPE_TARGET_TYPE (type));
	483
	484	if (TYPE_CODE (target_type) == TYPE_CODE_FUNC)
	485	{
	486	/* Try to print what function it points to. */
	487	print_address_demangle (addr, stream, demangle);
	488	/* Return value is irrelevant except for string pointers. */
	489	return (0);
	490	}
	491
	492	if (addressprint && format != 's')
	493	{
	494	fputs_filtered ("@", stream);
	495	print_longest (stream, 'x', 0, (ULONGEST) addr);
	496	}
	497
	498	return i;
	499
	500	case TYPE_CODE_CHAR:
c906108c	501	case TYPE_CODE_INT:
c55a3f73 TT	502	/* Can't just call c_val_print because that prints bytes as C
c55a3f73 TT	503	chars. */
c906108c SS	504	format = format ? format : output_format;
	505	if (format)
	506	print_scalar_formatted (valaddr, type, format, 0, stream);
c55a3f73 TT	507	else if (TYPE_CODE (type) == TYPE_CODE_CHAR
	508	\|\| (TYPE_CODE (type) == TYPE_CODE_INT
	509	&& TYPE_LENGTH (type) == 2
	510	&& strcmp (TYPE_NAME (type), "char") == 0))
	511	LA_PRINT_CHAR ((int) unpack_long (type, valaddr), stream);
c906108c SS	512	else
	513	val_print_type_code_int (type, valaddr, stream);
	514	break;
	515
	516	case TYPE_CODE_STRUCT:
	517	java_print_value_fields (type, valaddr, address, stream, format,
	518	recurse, pretty);
	519	break;
	520
	521	default:
	522	return c_val_print (type, valaddr, embedded_offset, address, stream,
	523	format, deref_ref, recurse, pretty);
	524	}
	525
	526	return 0;
	527	}