/* Support for printing Java values for GDB, the GNU debugger.
Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007,
- 2008 Free Software Foundation, Inc.
+ 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
This file is part of GDB.
java_value_print (struct value *val, struct ui_file *stream,
const struct value_print_options *options)
{
+ struct gdbarch *gdbarch = get_type_arch (value_type (val));
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
struct type *type;
CORE_ADDR address;
int i;
struct value_print_options opts;
type = value_type (val);
- address = VALUE_ADDRESS (val) + value_offset (val);
+ address = value_address (val);
if (is_object_type (type))
{
CORE_ADDR obj_addr;
- /* Get the run-time type, and cast the object into that */
+ /* 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 = type_from_class (gdbarch, java_class_from_object (val));
type = lookup_pointer_type (type);
val = value_at (type, address);
long length;
unsigned int things_printed = 0;
int reps;
- struct type *el_type = java_primitive_type_from_name (name, i - 2);
+ struct type *el_type
+ = java_primitive_type_from_name (gdbarch, name, i - 2);
i = 0;
- read_memory (address + JAVA_OBJECT_SIZE, buf4, 4);
+ read_memory (address + get_java_object_header_size (gdbarch), buf4, 4);
- length = (long) extract_signed_integer (buf4, 4);
+ length = (long) extract_signed_integer (buf4, 4, byte_order);
fprintf_filtered (stream, "{length: %ld", length);
if (el_type == NULL)
{
CORE_ADDR element;
- CORE_ADDR next_element = -1; /* dummy initial value */
+ CORE_ADDR next_element = -1; /* Dummy initial value. */
- address += JAVA_OBJECT_SIZE + 4; /* Skip object header and length. */
+ /* Skip object header and length. */
+ address += get_java_object_header_size (gdbarch) + 4;
while (i < length && things_printed < options->print_max)
{
gdb_byte *buf;
- buf = alloca (gdbarch_ptr_bit (current_gdbarch) / HOST_CHAR_BIT);
+ buf = alloca (gdbarch_ptr_bit (gdbarch) / HOST_CHAR_BIT);
fputs_filtered (", ", stream);
wrap_here (n_spaces (2));
else
{
read_memory (address, buf, sizeof (buf));
- address += gdbarch_ptr_bit (current_gdbarch) / HOST_CHAR_BIT;
+ address += gdbarch_ptr_bit (gdbarch) / HOST_CHAR_BIT;
/* FIXME: cagney/2003-05-24: Bogus or what. It
pulls a host sized pointer out of the target and
then extracts that as an address (while assuming
that the address is unsigned)! */
- element = extract_unsigned_integer (buf, sizeof (buf));
+ element = extract_unsigned_integer (buf, sizeof (buf),
+ byte_order);
}
for (reps = 1; i + reps < length; reps++)
{
read_memory (address, buf, sizeof (buf));
- address += gdbarch_ptr_bit (current_gdbarch) / HOST_CHAR_BIT;
+ address += gdbarch_ptr_bit (gdbarch) / HOST_CHAR_BIT;
/* FIXME: cagney/2003-05-24: Bogus or what. It
pulls a host sized pointer out of the target and
then extracts that as an address (while assuming
that the address is unsigned)! */
- next_element = extract_unsigned_integer (buf, sizeof (buf));
+ next_element = extract_unsigned_integer (buf, sizeof (buf),
+ byte_order);
if (next_element != element)
break;
}
if (element == 0)
fprintf_filtered (stream, "null");
else
- fprintf_filtered (stream, "@%s", paddr_nz (element));
+ fprintf_filtered (stream, "@%s", paddress (gdbarch, element));
things_printed++;
i += reps;
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);
+ set_value_address (v, (address
+ + get_java_object_header_size (gdbarch) + 4));
+ set_value_address (next_v, value_raw_address (v));
while (i < length && things_printed < options->print_max)
{
for (reps = 1; i + reps < length; reps++)
{
set_value_lazy (next_v, 1);
- set_value_offset (next_v, value_offset (next_v) + TYPE_LENGTH (el_type));
- if (memcmp (value_contents (v), value_contents (next_v),
- TYPE_LENGTH (el_type)) != 0)
+ set_value_offset (next_v, value_offset (next_v)
+ + TYPE_LENGTH (el_type));
+ value_fetch_lazy (next_v);
+ if (!(value_available_contents_eq
+ (v, value_embedded_offset (v),
+ next_v, value_embedded_offset (next_v),
+ TYPE_LENGTH (el_type))))
break;
}
return 0;
}
- /* If it's type String, print it */
+ /* If it's type String, print it. */
if (TYPE_CODE (type) == TYPE_CODE_PTR
&& TYPE_TARGET_TYPE (type)
&& address != 0
&& value_as_address (val) != 0)
{
+ struct type *char_type;
struct value *data_val;
CORE_ADDR data;
struct value *boffset_val;
unsigned long count;
struct value *mark;
- mark = value_mark (); /* Remember start of new values */
+ mark = value_mark (); /* Remember start of new values. */
data_val = value_struct_elt (&val, NULL, "data", NULL, NULL);
data = value_as_address (data_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 */
+ value_free_to_mark (mark); /* Release unnecessary values. */
- val_print_string (data + boffset, count, 2, stream, options);
+ char_type = builtin_java_type (gdbarch)->builtin_char;
+ val_print_string (char_type, NULL, data + boffset, count, stream,
+ options);
return 0;
}
static void
java_print_value_fields (struct type *type, const gdb_byte *valaddr,
+ int offset,
CORE_ADDR address, struct ui_file *stream,
int recurse,
+ const struct value *val,
const struct value_print_options *options)
{
int i, len, n_baseclasses;
base_valaddr = valaddr;
- java_print_value_fields (baseclass, base_valaddr, address + boffset,
- stream, recurse + 1, options);
+ java_print_value_fields (baseclass, base_valaddr,
+ offset + boffset, address,
+ stream, recurse + 1, val, options);
fputs_filtered (", ", stream);
}
-
}
if (!len && n_baseclasses == 1)
if (field_is_static (&TYPE_FIELD (type, i)))
{
char *name = TYPE_FIELD_NAME (type, i);
+
if (!options->static_field_print)
continue;
if (name != NULL && strcmp (name, "class") == 0)
{
fputs_filtered ("<optimized out or zero length>", stream);
}
+ else if (value_bits_synthetic_pointer (val,
+ TYPE_FIELD_BITPOS (type,
+ i),
+ TYPE_FIELD_BITSIZE (type,
+ i)))
+ {
+ fputs_filtered (_("<synthetic pointer>"), stream);
+ }
+ else if (!value_bits_valid (val, TYPE_FIELD_BITPOS (type, i),
+ TYPE_FIELD_BITSIZE (type, i)))
+ {
+ val_print_optimized_out (stream);
+ }
else
{
struct value_print_options opts;
- v = value_from_longest (TYPE_FIELD_TYPE (type, i),
- unpack_field_as_long (type, valaddr, i));
+ v = value_field_bitfield (type, i, valaddr, offset, val);
opts = *options;
opts.deref_ref = 0;
else if (field_is_static (&TYPE_FIELD (type, i)))
{
struct value *v = value_static_field (type, i);
+
if (v == NULL)
- fputs_filtered ("<optimized out>", stream);
+ val_print_optimized_out (stream);
else
{
struct value_print_options opts;
struct type *t = check_typedef (value_type (v));
+
if (TYPE_CODE (t) == TYPE_CODE_STRUCT)
v = value_addr (v);
opts = *options;
else
{
struct value_print_options opts = *options;
+
opts.deref_ref = 0;
val_print (TYPE_FIELD_TYPE (type, i),
- valaddr + TYPE_FIELD_BITPOS (type, i) / 8, 0,
- address + TYPE_FIELD_BITPOS (type, i) / 8,
- stream, recurse + 1, &opts,
+ valaddr,
+ offset + TYPE_FIELD_BITPOS (type, i) / 8,
+ address, stream, recurse + 1, val, &opts,
current_language);
}
}
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
- OPTIONS. The data at VALADDR is in target byte order.
-
- If the data are a string pointer, returns the number of string characters
- printed. */
+/* See val_print for a description of the various parameters of this
+ function; they are identical. The semantics of the return value is
+ also identical to val_print. */
int
java_val_print (struct type *type, const gdb_byte *valaddr,
int embedded_offset, CORE_ADDR address,
struct ui_file *stream, int recurse,
+ const struct value *val,
const struct value_print_options *options)
{
- unsigned int i = 0; /* Number of characters printed */
+ struct gdbarch *gdbarch = get_type_arch (type);
+ unsigned int i = 0; /* Number of characters printed. */
struct type *target_type;
CORE_ADDR addr;
case TYPE_CODE_PTR:
if (options->format && options->format != 's')
{
- print_scalar_formatted (valaddr, type, options, 0, stream);
+ val_print_scalar_formatted (type, valaddr, embedded_offset,
+ val, options, 0, stream);
break;
}
#if 0
{
/* 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.) */
+ -fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */
/* Extract an address, assume that it is unsigned. */
- print_address_demangle (extract_unsigned_integer (valaddr, TYPE_LENGTH (type)),
- stream, demangle);
+ print_address_demangle
+ (gdbarch,
+ extract_unsigned_integer (valaddr + embedded_offset,
+ TYPE_LENGTH (type)),
+ stream, demangle);
break;
}
#endif
- addr = unpack_pointer (type, valaddr);
+ addr = unpack_pointer (type, valaddr + embedded_offset);
if (addr == 0)
{
fputs_filtered ("null", stream);
if (TYPE_CODE (target_type) == TYPE_CODE_FUNC)
{
/* Try to print what function it points to. */
- print_address_demangle (addr, stream, demangle);
+ print_address_demangle (gdbarch, addr, stream, demangle);
/* Return value is irrelevant except for string pointers. */
return (0);
}
if (options->format || options->output_format)
{
struct value_print_options opts = *options;
+
opts.format = (options->format ? options->format
: options->output_format);
- print_scalar_formatted (valaddr, type, &opts, 0, stream);
+ val_print_scalar_formatted (type, valaddr, embedded_offset,
+ val, &opts, 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);
+ LA_PRINT_CHAR ((int) unpack_long (type, valaddr + embedded_offset),
+ type, stream);
else
- val_print_type_code_int (type, valaddr, stream);
+ val_print_type_code_int (type, valaddr + embedded_offset, stream);
break;
case TYPE_CODE_STRUCT:
- java_print_value_fields (type, valaddr, address, stream, recurse,
- options);
+ java_print_value_fields (type, valaddr, embedded_offset,
+ address, stream, recurse, val, options);
break;
default:
return c_val_print (type, valaddr, embedded_offset, address, stream,
- recurse, options);
+ recurse, val, options);
}
return 0;
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