[thirdparty/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"

/* 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_NAME (TYPE_TARGET_TYPE (type))
      && strcmp (TYPE_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
    {
      extern int inspect_it;
      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:
      format = format ? format : output_format;
      if (format)
	print_scalar_formatted (valaddr, type, format, 0, stream);
      else
	LA_PRINT_CHAR ((int) unpack_long (type, valaddr), stream);
      break;

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