mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-15 21:33:29 +08:00
6b1755ce16
* gdbtypes.h (enum type_code): Define TYPE_CODE_BITSTRING -1. * arm-tdep.c (arm_type_align): Remove code handling TYPE_CODE_BITSTRING. * c-typeprint.c (c_type_print_varspec_prefix): Likewise. (c_type_print_varspec_suffix): Likewise. * eval.c (evaluate_subexp_standard): Likewise. * f-typeprint.c (f_type_print_varspec_prefix): Likewise. (f_type_print_varspec_suffix): Likewise. * gdbtypes.c (is_scalar_type): Likewise. (recursive_dump_type): Likewise. * infcall.c (value_arg_coerce): Likewise. * m2-valprint.c (m2_val_print): Likewise. * p-typeprint.c (pascal_type_print_varspec_prefix): Likewise. (pascal_type_print_varspec_suffix): Likewise. (pascal_type_print_base): Likewise. * p-valprint.c (pascal_val_print): Likewise. (pascal_val_print): Likewise. * valops.c (value_slice): Likewise. * valprint.c (scalar_type_p): Likewise. * valarith.c (value_bitstring_subscript): Remove. (value_concat): Remove code handling TYPE_CODE_BITSTRING. Remove comment on TYPE_CODE_BITSTRING. * stabsread.c (read_type): Don't set TYPE_CODE (type) to TYPE_CODE_BITSTRING. * python/py-type.c (pyty_codes): Move ENTRY (TYPE_CODE_BITSTRING) to slot 0. gdb/doc: * gdb.texinfo (Types In Python): Mention gdb.TYPE_CODE_BITSTRING is deprecated.
511 lines
14 KiB
C
511 lines
14 KiB
C
/* Support for printing Modula 2 values for GDB, the GNU debugger.
|
|
|
|
Copyright (C) 1986, 1988-1989, 1991-1992, 1996, 1998, 2000, 2005-2012
|
|
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 "symtab.h"
|
|
#include "gdbtypes.h"
|
|
#include "expression.h"
|
|
#include "value.h"
|
|
#include "valprint.h"
|
|
#include "language.h"
|
|
#include "typeprint.h"
|
|
#include "c-lang.h"
|
|
#include "m2-lang.h"
|
|
#include "target.h"
|
|
|
|
static int print_unpacked_pointer (struct type *type,
|
|
CORE_ADDR address, CORE_ADDR addr,
|
|
const struct value_print_options *options,
|
|
struct ui_file *stream);
|
|
static void
|
|
m2_print_array_contents (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,
|
|
int len);
|
|
|
|
|
|
/* get_long_set_bounds - assigns the bounds of the long set to low and
|
|
high. */
|
|
|
|
int
|
|
get_long_set_bounds (struct type *type, LONGEST *low, LONGEST *high)
|
|
{
|
|
int len, i;
|
|
|
|
if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
|
|
{
|
|
len = TYPE_NFIELDS (type);
|
|
i = TYPE_N_BASECLASSES (type);
|
|
if (len == 0)
|
|
return 0;
|
|
*low = TYPE_LOW_BOUND (TYPE_INDEX_TYPE (TYPE_FIELD_TYPE (type, i)));
|
|
*high = TYPE_HIGH_BOUND (TYPE_INDEX_TYPE (TYPE_FIELD_TYPE (type,
|
|
len-1)));
|
|
return 1;
|
|
}
|
|
error (_("expecting long_set"));
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
m2_print_long_set (struct type *type, const gdb_byte *valaddr,
|
|
int embedded_offset, CORE_ADDR address,
|
|
struct ui_file *stream)
|
|
{
|
|
int empty_set = 1;
|
|
int element_seen = 0;
|
|
LONGEST previous_low = 0;
|
|
LONGEST previous_high= 0;
|
|
LONGEST i, low_bound, high_bound;
|
|
LONGEST field_low, field_high;
|
|
struct type *range;
|
|
int len, field;
|
|
struct type *target;
|
|
int bitval;
|
|
|
|
CHECK_TYPEDEF (type);
|
|
|
|
fprintf_filtered (stream, "{");
|
|
len = TYPE_NFIELDS (type);
|
|
if (get_long_set_bounds (type, &low_bound, &high_bound))
|
|
{
|
|
field = TYPE_N_BASECLASSES (type);
|
|
range = TYPE_INDEX_TYPE (TYPE_FIELD_TYPE (type, field));
|
|
}
|
|
else
|
|
{
|
|
fprintf_filtered (stream, " %s }", _("<unknown bounds of set>"));
|
|
return;
|
|
}
|
|
|
|
target = TYPE_TARGET_TYPE (range);
|
|
|
|
if (get_discrete_bounds (range, &field_low, &field_high) >= 0)
|
|
{
|
|
for (i = low_bound; i <= high_bound; i++)
|
|
{
|
|
bitval = value_bit_index (TYPE_FIELD_TYPE (type, field),
|
|
(TYPE_FIELD_BITPOS (type, field) / 8) +
|
|
valaddr + embedded_offset, i);
|
|
if (bitval < 0)
|
|
error (_("bit test is out of range"));
|
|
else if (bitval > 0)
|
|
{
|
|
previous_high = i;
|
|
if (! element_seen)
|
|
{
|
|
if (! empty_set)
|
|
fprintf_filtered (stream, ", ");
|
|
print_type_scalar (target, i, stream);
|
|
empty_set = 0;
|
|
element_seen = 1;
|
|
previous_low = i;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* bit is not set */
|
|
if (element_seen)
|
|
{
|
|
if (previous_low+1 < previous_high)
|
|
fprintf_filtered (stream, "..");
|
|
if (previous_low+1 < previous_high)
|
|
print_type_scalar (target, previous_high, stream);
|
|
element_seen = 0;
|
|
}
|
|
}
|
|
if (i == field_high)
|
|
{
|
|
field++;
|
|
if (field == len)
|
|
break;
|
|
range = TYPE_INDEX_TYPE (TYPE_FIELD_TYPE (type, field));
|
|
if (get_discrete_bounds (range, &field_low, &field_high) < 0)
|
|
break;
|
|
target = TYPE_TARGET_TYPE (range);
|
|
}
|
|
}
|
|
if (element_seen)
|
|
{
|
|
if (previous_low+1 < previous_high)
|
|
{
|
|
fprintf_filtered (stream, "..");
|
|
print_type_scalar (target, previous_high, stream);
|
|
}
|
|
element_seen = 0;
|
|
}
|
|
fprintf_filtered (stream, "}");
|
|
}
|
|
}
|
|
|
|
static void
|
|
m2_print_unbounded_array (struct type *type, const gdb_byte *valaddr,
|
|
int embedded_offset, CORE_ADDR address,
|
|
struct ui_file *stream, int recurse,
|
|
const struct value_print_options *options)
|
|
{
|
|
struct type *content_type;
|
|
CORE_ADDR addr;
|
|
LONGEST len;
|
|
struct value *val;
|
|
|
|
CHECK_TYPEDEF (type);
|
|
content_type = TYPE_TARGET_TYPE (TYPE_FIELD_TYPE (type, 0));
|
|
|
|
addr = unpack_pointer (TYPE_FIELD_TYPE (type, 0),
|
|
(TYPE_FIELD_BITPOS (type, 0) / 8) +
|
|
valaddr + embedded_offset);
|
|
|
|
val = value_at_lazy (TYPE_TARGET_TYPE (TYPE_FIELD_TYPE (type, 0)),
|
|
addr);
|
|
len = unpack_field_as_long (type, valaddr + embedded_offset, 1);
|
|
|
|
fprintf_filtered (stream, "{");
|
|
m2_print_array_contents (value_type (val),
|
|
value_contents_for_printing (val),
|
|
value_embedded_offset (val), addr, stream,
|
|
recurse, val, options, len);
|
|
fprintf_filtered (stream, ", HIGH = %d}", (int) len);
|
|
}
|
|
|
|
static int
|
|
print_unpacked_pointer (struct type *type,
|
|
CORE_ADDR address, CORE_ADDR addr,
|
|
const struct value_print_options *options,
|
|
struct ui_file *stream)
|
|
{
|
|
struct gdbarch *gdbarch = get_type_arch (type);
|
|
struct type *elttype = check_typedef (TYPE_TARGET_TYPE (type));
|
|
int want_space = 0;
|
|
|
|
if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
|
|
{
|
|
/* Try to print what function it points to. */
|
|
print_function_pointer_address (options, gdbarch, addr, stream);
|
|
/* Return value is irrelevant except for string pointers. */
|
|
return 0;
|
|
}
|
|
|
|
if (options->addressprint && options->format != 's')
|
|
{
|
|
fputs_filtered (paddress (gdbarch, address), stream);
|
|
want_space = 1;
|
|
}
|
|
|
|
/* For a pointer to char or unsigned char, also print the string
|
|
pointed to, unless pointer is null. */
|
|
|
|
if (TYPE_LENGTH (elttype) == 1
|
|
&& TYPE_CODE (elttype) == TYPE_CODE_INT
|
|
&& (options->format == 0 || options->format == 's')
|
|
&& addr != 0)
|
|
{
|
|
if (want_space)
|
|
fputs_filtered (" ", stream);
|
|
return val_print_string (TYPE_TARGET_TYPE (type), NULL, addr, -1,
|
|
stream, options);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
print_variable_at_address (struct type *type,
|
|
const gdb_byte *valaddr,
|
|
struct ui_file *stream,
|
|
int recurse,
|
|
const struct value_print_options *options)
|
|
{
|
|
struct gdbarch *gdbarch = get_type_arch (type);
|
|
CORE_ADDR addr = unpack_pointer (type, valaddr);
|
|
struct type *elttype = check_typedef (TYPE_TARGET_TYPE (type));
|
|
|
|
fprintf_filtered (stream, "[");
|
|
fputs_filtered (paddress (gdbarch, addr), stream);
|
|
fprintf_filtered (stream, "] : ");
|
|
|
|
if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
|
|
{
|
|
struct value *deref_val =
|
|
value_at (TYPE_TARGET_TYPE (type), unpack_pointer (type, valaddr));
|
|
|
|
common_val_print (deref_val, stream, recurse, options, current_language);
|
|
}
|
|
else
|
|
fputs_filtered ("???", stream);
|
|
}
|
|
|
|
|
|
/* m2_print_array_contents - prints out the contents of an
|
|
array up to a max_print values.
|
|
It prints arrays of char as a string
|
|
and all other data types as comma
|
|
separated values. */
|
|
|
|
static void
|
|
m2_print_array_contents (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,
|
|
int len)
|
|
{
|
|
int eltlen;
|
|
CHECK_TYPEDEF (type);
|
|
|
|
if (TYPE_LENGTH (type) > 0)
|
|
{
|
|
eltlen = TYPE_LENGTH (type);
|
|
if (options->prettyprint_arrays)
|
|
print_spaces_filtered (2 + 2 * recurse, stream);
|
|
/* For an array of chars, print with string syntax. */
|
|
if (eltlen == 1 &&
|
|
((TYPE_CODE (type) == TYPE_CODE_INT)
|
|
|| ((current_language->la_language == language_m2)
|
|
&& (TYPE_CODE (type) == TYPE_CODE_CHAR)))
|
|
&& (options->format == 0 || options->format == 's'))
|
|
val_print_string (type, NULL, address, len+1, stream, options);
|
|
else
|
|
{
|
|
fprintf_filtered (stream, "{");
|
|
val_print_array_elements (type, valaddr, embedded_offset,
|
|
address, stream, recurse, val,
|
|
options, 0);
|
|
fprintf_filtered (stream, "}");
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Decorations for Modula 2. */
|
|
|
|
static const struct generic_val_print_decorations m2_decorations =
|
|
{
|
|
"",
|
|
" + ",
|
|
" * I",
|
|
"TRUE",
|
|
"FALSE",
|
|
"void"
|
|
};
|
|
|
|
/* See val_print for a description of the various parameters of this
|
|
function; they are identical. */
|
|
|
|
void
|
|
m2_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);
|
|
unsigned int i = 0; /* Number of characters printed. */
|
|
unsigned len;
|
|
struct type *elttype;
|
|
unsigned eltlen;
|
|
CORE_ADDR addr;
|
|
|
|
CHECK_TYPEDEF (type);
|
|
switch (TYPE_CODE (type))
|
|
{
|
|
case TYPE_CODE_ARRAY:
|
|
if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0)
|
|
{
|
|
elttype = check_typedef (TYPE_TARGET_TYPE (type));
|
|
eltlen = TYPE_LENGTH (elttype);
|
|
len = TYPE_LENGTH (type) / eltlen;
|
|
if (options->prettyprint_arrays)
|
|
print_spaces_filtered (2 + 2 * recurse, stream);
|
|
/* For an array of chars, print with string syntax. */
|
|
if (eltlen == 1 &&
|
|
((TYPE_CODE (elttype) == TYPE_CODE_INT)
|
|
|| ((current_language->la_language == language_m2)
|
|
&& (TYPE_CODE (elttype) == TYPE_CODE_CHAR)))
|
|
&& (options->format == 0 || options->format == 's'))
|
|
{
|
|
/* 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;
|
|
|
|
/* Look for a NULL char. */
|
|
for (temp_len = 0;
|
|
(valaddr + embedded_offset)[temp_len]
|
|
&& temp_len < len && temp_len < options->print_max;
|
|
temp_len++);
|
|
len = temp_len;
|
|
}
|
|
|
|
LA_PRINT_STRING (stream, TYPE_TARGET_TYPE (type),
|
|
valaddr + embedded_offset, len, NULL,
|
|
0, options);
|
|
i = len;
|
|
}
|
|
else
|
|
{
|
|
fprintf_filtered (stream, "{");
|
|
val_print_array_elements (type, valaddr, embedded_offset,
|
|
address, stream,
|
|
recurse, original_value,
|
|
options, 0);
|
|
fprintf_filtered (stream, "}");
|
|
}
|
|
break;
|
|
}
|
|
/* Array of unspecified length: treat like pointer to first elt. */
|
|
print_unpacked_pointer (type, address, address, options, stream);
|
|
break;
|
|
|
|
case TYPE_CODE_PTR:
|
|
if (TYPE_CONST (type))
|
|
print_variable_at_address (type, valaddr + embedded_offset,
|
|
stream, recurse, options);
|
|
else if (options->format && options->format != 's')
|
|
val_print_scalar_formatted (type, valaddr, embedded_offset,
|
|
original_value, options, 0, stream);
|
|
else
|
|
{
|
|
addr = unpack_pointer (type, valaddr + embedded_offset);
|
|
print_unpacked_pointer (type, addr, address, options, stream);
|
|
}
|
|
break;
|
|
|
|
case TYPE_CODE_UNION:
|
|
if (recurse && !options->unionprint)
|
|
{
|
|
fprintf_filtered (stream, "{...}");
|
|
break;
|
|
}
|
|
/* Fall through. */
|
|
case TYPE_CODE_STRUCT:
|
|
if (m2_is_long_set (type))
|
|
m2_print_long_set (type, valaddr, embedded_offset, address,
|
|
stream);
|
|
else if (m2_is_unbounded_array (type))
|
|
m2_print_unbounded_array (type, valaddr, embedded_offset,
|
|
address, stream, recurse, options);
|
|
else
|
|
cp_print_value_fields (type, type, valaddr, embedded_offset,
|
|
address, stream, recurse, original_value,
|
|
options, NULL, 0);
|
|
break;
|
|
|
|
case TYPE_CODE_SET:
|
|
elttype = TYPE_INDEX_TYPE (type);
|
|
CHECK_TYPEDEF (elttype);
|
|
if (TYPE_STUB (elttype))
|
|
{
|
|
fprintf_filtered (stream, _("<incomplete type>"));
|
|
gdb_flush (stream);
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
struct type *range = elttype;
|
|
LONGEST low_bound, high_bound;
|
|
int i;
|
|
int need_comma = 0;
|
|
|
|
fputs_filtered ("{", stream);
|
|
|
|
i = get_discrete_bounds (range, &low_bound, &high_bound);
|
|
maybe_bad_bstring:
|
|
if (i < 0)
|
|
{
|
|
fputs_filtered (_("<error value>"), stream);
|
|
goto done;
|
|
}
|
|
|
|
for (i = low_bound; i <= high_bound; i++)
|
|
{
|
|
int element = value_bit_index (type, valaddr + embedded_offset,
|
|
i);
|
|
|
|
if (element < 0)
|
|
{
|
|
i = element;
|
|
goto maybe_bad_bstring;
|
|
}
|
|
if (element)
|
|
{
|
|
if (need_comma)
|
|
fputs_filtered (", ", stream);
|
|
print_type_scalar (range, i, stream);
|
|
need_comma = 1;
|
|
|
|
if (i + 1 <= high_bound
|
|
&& value_bit_index (type, valaddr + embedded_offset,
|
|
++i))
|
|
{
|
|
int j = i;
|
|
|
|
fputs_filtered ("..", stream);
|
|
while (i + 1 <= high_bound
|
|
&& value_bit_index (type,
|
|
valaddr + embedded_offset,
|
|
++i))
|
|
j = i;
|
|
print_type_scalar (range, j, stream);
|
|
}
|
|
}
|
|
}
|
|
done:
|
|
fputs_filtered ("}", stream);
|
|
}
|
|
break;
|
|
|
|
case TYPE_CODE_RANGE:
|
|
if (TYPE_LENGTH (type) == TYPE_LENGTH (TYPE_TARGET_TYPE (type)))
|
|
{
|
|
m2_val_print (TYPE_TARGET_TYPE (type), valaddr, embedded_offset,
|
|
address, stream, recurse, original_value, options);
|
|
break;
|
|
}
|
|
/* 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_REF:
|
|
case TYPE_CODE_ENUM:
|
|
case TYPE_CODE_FUNC:
|
|
case TYPE_CODE_INT:
|
|
case TYPE_CODE_FLT:
|
|
case TYPE_CODE_METHOD:
|
|
case TYPE_CODE_VOID:
|
|
case TYPE_CODE_ERROR:
|
|
case TYPE_CODE_UNDEF:
|
|
case TYPE_CODE_BOOL:
|
|
case TYPE_CODE_CHAR:
|
|
default:
|
|
generic_val_print (type, valaddr, embedded_offset, address,
|
|
stream, recurse, original_value, options,
|
|
&m2_decorations);
|
|
break;
|
|
}
|
|
gdb_flush (stream);
|
|
}
|