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/* Support for printing Java values for GDB, the GNU debugger.
Copyright 1997 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "value.h"
#include "demangle.h"
#include "valprint.h"
#include "language.h"
#include "jv-lang.h"
#include "c-lang.h"
int
java_value_print (val, stream, format, pretty)
value_ptr val;
GDB_FILE *stream;
int format;
enum val_prettyprint pretty;
{
struct type *type = VALUE_TYPE (val);
CORE_ADDR address = VALUE_ADDRESS (val) + VALUE_OFFSET (val);
if (is_object_type (type))
{
CORE_ADDR obj_addr = unpack_pointer (type, VALUE_CONTENTS (val));
if (obj_addr != 0)
{
value_ptr obj_val
= value_at (TYPE_TARGET_TYPE (type), obj_addr, NULL);
type = type_from_class (java_class_from_object (obj_val));
type = lookup_pointer_type (type);
}
}
if (TYPE_CODE (type) == TYPE_CODE_PTR && ! value_logical_not (val))
{
type_print (TYPE_TARGET_TYPE (type), "", stream, -1);
}
if (TYPE_CODE (type) == TYPE_CODE_STRUCT && TYPE_TAG_NAME (type) != NULL
&& TYPE_TAG_NAME (type)[0] == '[')
{
value_ptr len = value_at (java_int_type, address + JAVA_OBJECT_SIZE, 0);
long length = value_as_long (len);
fprintf_filtered (stream, "{");
fprintf_filtered (stream, "length = %ld", length);
fprintf_filtered (stream, "}");
return 0;
}
return (val_print (type, VALUE_CONTENTS (val), address,
stream, format, 1, 0, pretty));
}
int
java_val_print (type, valaddr, address, stream, format, deref_ref, recurse,
pretty)
struct type *type;
char *valaddr;
CORE_ADDR address;
GDB_FILE *stream;
int format;
int deref_ref;
int recurse;
enum val_prettyprint pretty;
{
register unsigned int i = 0; /* Number of characters printed */
struct type *elttype;
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;
}
elttype = check_typedef (TYPE_TARGET_TYPE (type));
{
print_unpacked_pointer:
elttype = check_typedef (TYPE_TARGET_TYPE (type));
if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
{
/* Try to print what function it points to. */
print_address_demangle (addr, stream, demangle);
/* Return value is irrelevant except for string pointers. */
return (0);
}
if (addressprint && format != 's')
{
fputs_filtered ("@", stream);
print_longest (stream, 'x', 0, (ULONGEST) addr);
}
return i;
}
break;
default:
return c_val_print (type, valaddr, address, stream, format,
deref_ref, recurse, pretty);
}
}
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