dbc98a8b6e
* dwarf2read.c (read_array_type): Read the DW_AT_byte_size from the DIE and set the length of the type. * gdbtypes.h (get_array_bounds): Move here from valprint.h. * gdbtypes.c (get_array_bounds): Move here from valprint.c and return 0 if the corresponding bounds of the type are undefined. * valprint.h (get_array_bounds): Move declaration to gdbtypes.h. * valprint.c (get_array_bounds): Move implementation to gdbtypes.c. (val_print_array_elements): Use get_array_bounds to compute the number of array elements instead of dividing the length of the array by the length of the element types. * valarith.c (vector_binop): Likewise. * valops.c (value_cast): Likewise. * c-valprint.c (c_val_print): Likewise. * c-typeprint.c (c_type_print_varspec_suffix): Likewise. gdb/testsuite: * gdb.base/gnu_vector.exp: Adjust expect messages.
734 lines
22 KiB
C
734 lines
22 KiB
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, 2007, 2008, 2009, 2010
|
||
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 3 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, see <http://www.gnu.org/licenses/>. */
|
||
|
||
#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"
|
||
|
||
|
||
/* Print function pointer with inferior address ADDRESS onto stdio
|
||
stream STREAM. */
|
||
|
||
static void
|
||
print_function_pointer_address (struct gdbarch *gdbarch, CORE_ADDR address,
|
||
struct ui_file *stream, int addressprint)
|
||
{
|
||
CORE_ADDR func_addr = gdbarch_convert_from_func_ptr_addr (gdbarch, address,
|
||
¤t_target);
|
||
|
||
/* If the function pointer is represented by a description, print the
|
||
address of the description. */
|
||
if (addressprint && func_addr != address)
|
||
{
|
||
fputs_filtered ("@", stream);
|
||
fputs_filtered (paddress (gdbarch, address), stream);
|
||
fputs_filtered (": ", stream);
|
||
}
|
||
print_address_demangle (gdbarch, func_addr, stream, demangle);
|
||
}
|
||
|
||
|
||
/* A helper for c_textual_element_type. This checks the name of the
|
||
typedef. This is bogus but it isn't apparent that the compiler
|
||
provides us the help we may need. */
|
||
|
||
static int
|
||
textual_name (const char *name)
|
||
{
|
||
return (!strcmp (name, "wchar_t")
|
||
|| !strcmp (name, "char16_t")
|
||
|| !strcmp (name, "char32_t"));
|
||
}
|
||
|
||
/* Apply a heuristic to decide whether an array of TYPE or a pointer
|
||
to TYPE should be printed as a textual string. Return non-zero if
|
||
it should, or zero if it should be treated as an array of integers
|
||
or pointer to integers. FORMAT is the current format letter,
|
||
or 0 if none.
|
||
|
||
We guess that "char" is a character. Explicitly signed and
|
||
unsigned character types are also characters. Integer data from
|
||
vector types is not. The user can override this by using the /s
|
||
format letter. */
|
||
|
||
int
|
||
c_textual_element_type (struct type *type, char format)
|
||
{
|
||
struct type *true_type, *iter_type;
|
||
|
||
if (format != 0 && format != 's')
|
||
return 0;
|
||
|
||
/* We also rely on this for its side effect of setting up all the
|
||
typedef pointers. */
|
||
true_type = check_typedef (type);
|
||
|
||
/* TYPE_CODE_CHAR is always textual. */
|
||
if (TYPE_CODE (true_type) == TYPE_CODE_CHAR)
|
||
return 1;
|
||
|
||
/* Any other character-like types must be integral. */
|
||
if (TYPE_CODE (true_type) != TYPE_CODE_INT)
|
||
return 0;
|
||
|
||
/* We peel typedefs one by one, looking for a match. */
|
||
iter_type = type;
|
||
while (iter_type)
|
||
{
|
||
/* Check the name of the type. */
|
||
if (TYPE_NAME (iter_type) && textual_name (TYPE_NAME (iter_type)))
|
||
return 1;
|
||
|
||
if (TYPE_CODE (iter_type) != TYPE_CODE_TYPEDEF)
|
||
break;
|
||
|
||
/* Peel a single typedef. If the typedef doesn't have a target
|
||
type, we use check_typedef and hope the result is ok -- it
|
||
might be for C++, where wchar_t is a built-in type. */
|
||
if (TYPE_TARGET_TYPE (iter_type))
|
||
iter_type = TYPE_TARGET_TYPE (iter_type);
|
||
else
|
||
iter_type = check_typedef (iter_type);
|
||
}
|
||
|
||
if (format == 's')
|
||
{
|
||
/* Print this as a string if we can manage it. For now, no
|
||
wide character support. */
|
||
if (TYPE_CODE (true_type) == TYPE_CODE_INT
|
||
&& TYPE_LENGTH (true_type) == 1)
|
||
return 1;
|
||
}
|
||
else
|
||
{
|
||
/* If a one-byte TYPE_CODE_INT is missing the not-a-character
|
||
flag, then we treat it as text; otherwise, we assume it's
|
||
being used as data. */
|
||
if (TYPE_CODE (true_type) == TYPE_CODE_INT
|
||
&& TYPE_LENGTH (true_type) == 1
|
||
&& !TYPE_NOTTEXT (true_type))
|
||
return 1;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
/* 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. */
|
||
|
||
int
|
||
c_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
|
||
CORE_ADDR address, struct ui_file *stream, int recurse,
|
||
const struct value *original_value,
|
||
const struct value_print_options *options)
|
||
{
|
||
struct gdbarch *gdbarch = get_type_arch (type);
|
||
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
||
unsigned int i = 0; /* Number of characters printed */
|
||
unsigned len;
|
||
struct type *elttype, *unresolved_elttype;
|
||
struct type *unresolved_type = type;
|
||
unsigned eltlen;
|
||
LONGEST val;
|
||
CORE_ADDR addr;
|
||
|
||
CHECK_TYPEDEF (type);
|
||
switch (TYPE_CODE (type))
|
||
{
|
||
case TYPE_CODE_ARRAY:
|
||
unresolved_elttype = TYPE_TARGET_TYPE (type);
|
||
elttype = check_typedef (unresolved_elttype);
|
||
if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0)
|
||
{
|
||
LONGEST low_bound, high_bound;
|
||
|
||
if (!get_array_bounds (type, &low_bound, &high_bound))
|
||
error (_("Could not determine the array high bound"));
|
||
|
||
eltlen = TYPE_LENGTH (elttype);
|
||
len = high_bound - low_bound + 1;
|
||
if (options->prettyprint_arrays)
|
||
{
|
||
print_spaces_filtered (2 + 2 * recurse, stream);
|
||
}
|
||
|
||
/* Print arrays of textual chars with a string syntax, as
|
||
long as the entire array is valid. */
|
||
if (c_textual_element_type (unresolved_elttype, options->format)
|
||
&& value_bits_valid (original_value,
|
||
TARGET_CHAR_BIT * embedded_offset,
|
||
TARGET_CHAR_BIT * TYPE_LENGTH (type)))
|
||
{
|
||
/* If requested, look for the first null char and only print
|
||
elements up to it. */
|
||
if (options->stop_print_at_null)
|
||
{
|
||
unsigned int temp_len;
|
||
|
||
for (temp_len = 0;
|
||
(temp_len < len
|
||
&& temp_len < options->print_max
|
||
&& extract_unsigned_integer (valaddr + embedded_offset
|
||
+ temp_len * eltlen,
|
||
eltlen, byte_order) != 0);
|
||
++temp_len)
|
||
;
|
||
len = temp_len;
|
||
}
|
||
|
||
LA_PRINT_STRING (stream, unresolved_elttype,
|
||
valaddr + embedded_offset, len,
|
||
NULL, 0, options);
|
||
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 + embedded_offset, stream,
|
||
recurse, original_value, options, i);
|
||
fprintf_filtered (stream, "}");
|
||
}
|
||
break;
|
||
}
|
||
/* Array of unspecified length: treat like pointer to first elt. */
|
||
addr = address;
|
||
goto print_unpacked_pointer;
|
||
|
||
case TYPE_CODE_MEMBERPTR:
|
||
if (options->format)
|
||
{
|
||
print_scalar_formatted (valaddr + embedded_offset, type,
|
||
options, 0, stream);
|
||
break;
|
||
}
|
||
cp_print_class_member (valaddr + embedded_offset, type, stream, "&");
|
||
break;
|
||
|
||
case TYPE_CODE_METHODPTR:
|
||
cplus_print_method_ptr (valaddr + embedded_offset, type, stream);
|
||
break;
|
||
|
||
case TYPE_CODE_PTR:
|
||
if (options->format && options->format != 's')
|
||
{
|
||
print_scalar_formatted (valaddr + embedded_offset, type,
|
||
options, 0, stream);
|
||
break;
|
||
}
|
||
if (options->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 (gdbarch, addr, stream,
|
||
options->addressprint);
|
||
break;
|
||
}
|
||
unresolved_elttype = TYPE_TARGET_TYPE (type);
|
||
elttype = check_typedef (unresolved_elttype);
|
||
{
|
||
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 (gdbarch, addr, stream,
|
||
options->addressprint);
|
||
/* Return value is irrelevant except for string pointers. */
|
||
return (0);
|
||
}
|
||
|
||
if (options->addressprint)
|
||
fputs_filtered (paddress (gdbarch, addr), stream);
|
||
|
||
/* For a pointer to a textual type, also print the string
|
||
pointed to, unless pointer is null. */
|
||
|
||
if (c_textual_element_type (unresolved_elttype, options->format)
|
||
&& addr != 0)
|
||
{
|
||
i = val_print_string (unresolved_elttype, NULL, addr, -1, stream,
|
||
options);
|
||
}
|
||
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 && options->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 (SYMBOL_LINKAGE_NAME (msymbol), block,
|
||
VAR_DOMAIN, &is_this_fld);
|
||
|
||
if (wsym)
|
||
{
|
||
wtype = SYMBOL_TYPE (wsym);
|
||
}
|
||
else
|
||
{
|
||
wtype = unresolved_elttype;
|
||
}
|
||
vt_val = value_at (wtype, vt_address);
|
||
common_val_print (vt_val, stream, recurse + 1, options,
|
||
current_language);
|
||
if (options->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_REF:
|
||
elttype = check_typedef (TYPE_TARGET_TYPE (type));
|
||
if (options->addressprint)
|
||
{
|
||
CORE_ADDR addr
|
||
= extract_typed_address (valaddr + embedded_offset, type);
|
||
|
||
fprintf_filtered (stream, "@");
|
||
fputs_filtered (paddress (gdbarch, addr), stream);
|
||
if (options->deref_ref)
|
||
fputs_filtered (": ", stream);
|
||
}
|
||
/* De-reference the reference. */
|
||
if (options->deref_ref)
|
||
{
|
||
if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
|
||
{
|
||
struct value *deref_val =
|
||
value_at
|
||
(TYPE_TARGET_TYPE (type),
|
||
unpack_pointer (type, valaddr + embedded_offset));
|
||
|
||
common_val_print (deref_val, stream, recurse, options,
|
||
current_language);
|
||
}
|
||
else
|
||
fputs_filtered ("???", stream);
|
||
}
|
||
break;
|
||
|
||
case TYPE_CODE_UNION:
|
||
if (recurse && !options->unionprint)
|
||
{
|
||
fprintf_filtered (stream, "{...}");
|
||
break;
|
||
}
|
||
/* Fall through. */
|
||
case TYPE_CODE_STRUCT:
|
||
/*FIXME: Abstract this away */
|
||
if (options->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 (gdbarch, addr, stream,
|
||
options->addressprint);
|
||
}
|
||
else
|
||
cp_print_value_fields_rtti (type, valaddr,
|
||
embedded_offset, address, stream,
|
||
recurse, original_value, options, NULL, 0);
|
||
break;
|
||
|
||
case TYPE_CODE_ENUM:
|
||
if (options->format)
|
||
{
|
||
print_scalar_formatted (valaddr + embedded_offset, type,
|
||
options, 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 (options->format)
|
||
print_scalar_formatted (valaddr + embedded_offset, type,
|
||
options, 0, stream);
|
||
else
|
||
val_print_type_code_flags (type, valaddr + embedded_offset, stream);
|
||
break;
|
||
|
||
case TYPE_CODE_FUNC:
|
||
case TYPE_CODE_METHOD:
|
||
if (options->format)
|
||
{
|
||
print_scalar_formatted (valaddr + embedded_offset, type,
|
||
options, 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 (gdbarch, address, stream, demangle);
|
||
break;
|
||
|
||
case TYPE_CODE_BOOL:
|
||
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 + embedded_offset, type,
|
||
&opts, 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:
|
||
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 + embedded_offset, type,
|
||
&opts, 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 (c_textual_element_type (unresolved_type, options->format))
|
||
{
|
||
fputs_filtered (" ", stream);
|
||
LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr + embedded_offset),
|
||
unresolved_type, stream);
|
||
}
|
||
}
|
||
break;
|
||
|
||
case TYPE_CODE_CHAR:
|
||
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 + embedded_offset, type,
|
||
&opts, 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, unresolved_type, stream);
|
||
}
|
||
break;
|
||
|
||
case TYPE_CODE_FLT:
|
||
if (options->format)
|
||
{
|
||
print_scalar_formatted (valaddr + embedded_offset, type,
|
||
options, 0, stream);
|
||
}
|
||
else
|
||
{
|
||
print_floating (valaddr + embedded_offset, type, stream);
|
||
}
|
||
break;
|
||
|
||
case TYPE_CODE_DECFLOAT:
|
||
if (options->format)
|
||
print_scalar_formatted (valaddr + embedded_offset, type,
|
||
options, 0, stream);
|
||
else
|
||
print_decimal_floating (valaddr + embedded_offset, type, stream);
|
||
break;
|
||
|
||
case TYPE_CODE_VOID:
|
||
fprintf_filtered (stream, "void");
|
||
break;
|
||
|
||
case TYPE_CODE_ERROR:
|
||
fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (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 (options->format)
|
||
print_scalar_formatted (valaddr + embedded_offset,
|
||
TYPE_TARGET_TYPE (type),
|
||
options, 0, stream);
|
||
else
|
||
print_floating (valaddr + embedded_offset, TYPE_TARGET_TYPE (type),
|
||
stream);
|
||
fprintf_filtered (stream, " + ");
|
||
if (options->format)
|
||
print_scalar_formatted (valaddr + embedded_offset
|
||
+ TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
|
||
TYPE_TARGET_TYPE (type),
|
||
options, 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);
|
||
}
|
||
|
||
int
|
||
c_value_print (struct value *val, struct ui_file *stream,
|
||
const struct value_print_options *options)
|
||
{
|
||
struct type *type, *real_type, *val_type;
|
||
int full, top, using_enc;
|
||
struct value_print_options opts = *options;
|
||
|
||
opts.deref_ref = 1;
|
||
|
||
/* 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. */
|
||
|
||
/* Preserve the original type before stripping typedefs. We prefer
|
||
to pass down the original type when possible, but for local
|
||
checks it is better to look past the typedefs. */
|
||
val_type = value_type (val);
|
||
type = check_typedef (val_type);
|
||
|
||
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.
|
||
(Don't use c_textual_element_type here; quoted strings
|
||
are always exactly (char *), (wchar_t *), or the like. */
|
||
if (TYPE_CODE (val_type) == TYPE_CODE_PTR
|
||
&& TYPE_NAME (val_type) == NULL
|
||
&& TYPE_NAME (TYPE_TARGET_TYPE (val_type)) != NULL
|
||
&& (strcmp (TYPE_NAME (TYPE_TARGET_TYPE (val_type)), "char") == 0
|
||
|| textual_name (TYPE_NAME (TYPE_TARGET_TYPE (val_type)))))
|
||
{
|
||
/* Print nothing */
|
||
}
|
||
else if (options->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, ") ");
|
||
val_type = type;
|
||
}
|
||
else
|
||
{
|
||
/* normal case */
|
||
fprintf_filtered (stream, "(");
|
||
type_print (value_type (val), "", stream, -1);
|
||
fprintf_filtered (stream, ") ");
|
||
}
|
||
}
|
||
|
||
if (!value_initialized (val))
|
||
fprintf_filtered (stream, " [uninitialized] ");
|
||
|
||
if (options->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_for_printing (val), 0,
|
||
value_address (val), stream, 0,
|
||
val, &opts, current_language);
|
||
/* 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_for_printing (val), 0,
|
||
value_address (val), stream, 0,
|
||
val, &opts, current_language);
|
||
}
|
||
/* Otherwise, we end up at the return outside this "if" */
|
||
}
|
||
|
||
return val_print (val_type, value_contents_for_printing (val),
|
||
value_embedded_offset (val),
|
||
value_address (val),
|
||
stream, 0,
|
||
val, &opts, current_language);
|
||
}
|