/* Support for printing Ada values for GDB, the GNU debugger.
- Copyright 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1997, 2001,
- 2002, 2003, 2004.
- Free Software Foundation, Inc.
-This file is part of GDB.
+ Copyright (C) 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1997, 2001, 2002,
+ 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
-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 file is part of GDB.
-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.
+ 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.
-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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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 <ctype.h>
#include "defs.h"
#include "c-lang.h"
#include "infcall.h"
#include "exceptions.h"
+#include "objfiles.h"
/* Encapsulates arguments to ada_val_print. */
struct ada_val_print_args
{
struct type *type;
- char *valaddr0;
+ const gdb_byte *valaddr0;
int embedded_offset;
CORE_ADDR address;
struct ui_file *stream;
enum val_prettyprint pretty;
};
-static void print_record (struct type *, char *, struct ui_file *, int,
- int, enum val_prettyprint);
-
-static int print_field_values (struct type *, char *, struct ui_file *,
- int, int, enum val_prettyprint,
- int, struct type *, char *);
+static void print_record (struct type *, const gdb_byte *, struct ui_file *,
+ int, int, enum val_prettyprint);
-static int print_variant_part (struct type *, int, char *,
+static int print_field_values (struct type *, const gdb_byte *,
struct ui_file *, int, int,
enum val_prettyprint, int, struct type *,
- char *);
-
-static void val_print_packed_array_elements (struct type *, char *valaddr,
- int, struct ui_file *, int, int,
- enum val_prettyprint);
+ const gdb_byte *);
static void adjust_type_signedness (struct type *);
static int ada_val_print_stub (void *args0);
-static int ada_val_print_1 (struct type *, char *, int, CORE_ADDR,
+static int ada_val_print_1 (struct type *, const gdb_byte *, int, CORE_ADDR,
struct ui_file *, int, int, int,
enum val_prettyprint);
-static void ada_print_floating (char *, struct type *, struct ui_file *);
\f
/* Make TYPE unsigned if its range of values includes no negatives. */
{
if (type != NULL && TYPE_CODE (type) == TYPE_CODE_RANGE
&& TYPE_LOW_BOUND (type) >= 0)
- TYPE_FLAGS (type) |= TYPE_FLAG_UNSIGNED;
+ TYPE_UNSIGNED (type) = 1;
}
-/* Assuming TYPE is a simple, non-empty array type, prints its lower bound
- on STREAM, if non-standard (i.e., other than 1 for numbers, other
- than lower bound of index type for enumerated type). Returns 1
- if something printed, otherwise 0. */
+/* Assuming TYPE is a simple array type, prints its lower bound on STREAM,
+ if non-standard (i.e., other than 1 for numbers, other than lower bound
+ of index type for enumerated type). Returns 1 if something printed,
+ otherwise 0. */
static int
print_optional_low_bound (struct ui_file *stream, struct type *type)
{
struct type *index_type;
long low_bound;
+ long high_bound;
- index_type = TYPE_INDEX_TYPE (type);
- low_bound = 0;
+ if (print_array_indexes_p ())
+ return 0;
- if (index_type == NULL)
+ if (!get_array_bounds (type, &low_bound, &high_bound))
return 0;
+
+ /* If this is an empty array, then don't print the lower bound.
+ That would be confusing, because we would print the lower bound,
+ followed by... nothing! */
+ if (low_bound > high_bound)
+ return 0;
+
+ index_type = TYPE_INDEX_TYPE (type);
+
if (TYPE_CODE (index_type) == TYPE_CODE_RANGE)
{
- low_bound = TYPE_LOW_BOUND (index_type);
- if (low_bound > TYPE_HIGH_BOUND (index_type))
- return 0;
+ /* We need to know what the base type is, in order to do the
+ appropriate check below. Otherwise, if this is a subrange
+ of an enumerated type, where the underlying value of the
+ first element is typically 0, we might test the low bound
+ against the wrong value. */
index_type = TYPE_TARGET_TYPE (index_type);
}
- else
- return 0;
switch (TYPE_CODE (index_type))
{
+ case TYPE_CODE_BOOL:
+ if (low_bound == 0)
+ return 0;
+ break;
case TYPE_CODE_ENUM:
if (low_bound == TYPE_FIELD_BITPOS (index_type, 0))
return 0;
break;
case TYPE_CODE_UNDEF:
- index_type = builtin_type_long;
+ index_type = builtin_type_int32;
/* FALL THROUGH */
default:
if (low_bound == 1)
by ada_coerce_to_simple_array). */
static void
-val_print_packed_array_elements (struct type *type, char *valaddr,
+val_print_packed_array_elements (struct type *type, const gdb_byte *valaddr,
int bitoffset, struct ui_file *stream,
int format, int recurse,
enum val_prettyprint pretty)
unsigned int i;
unsigned int things_printed = 0;
unsigned len;
- struct type *elttype;
+ struct type *elttype, *index_type;
unsigned eltlen;
unsigned long bitsize = TYPE_FIELD_BITSIZE (type, 0);
struct value *mark = value_mark ();
+ LONGEST low = 0;
elttype = TYPE_TARGET_TYPE (type);
eltlen = TYPE_LENGTH (check_typedef (elttype));
+ index_type = TYPE_INDEX_TYPE (type);
{
- LONGEST low, high;
+ LONGEST high;
if (get_discrete_bounds (TYPE_FIELD_TYPE (type, 0), &low, &high) < 0)
len = 1;
else
}
}
wrap_here (n_spaces (2 + 2 * recurse));
+ maybe_print_array_index (index_type, i + low, stream, format, pretty);
i0 = i;
v0 = ada_value_primitive_packed_val (NULL, valaddr,
(i * bitsize) / HOST_CHAR_BIT,
(i * bitsize) % HOST_CHAR_BIT,
bitsize, elttype);
- if (memcmp (VALUE_CONTENTS (v0), VALUE_CONTENTS (v1), eltlen) != 0)
+ if (memcmp (value_contents (v0), value_contents (v1), eltlen) != 0)
break;
}
if (i - i0 > repeat_count_threshold)
{
- val_print (elttype, VALUE_CONTENTS (v0), 0, 0, stream, format,
- 0, recurse + 1, pretty);
+ val_print (elttype, value_contents (v0), 0, 0, stream, format,
+ 0, recurse + 1, pretty, current_language);
annotate_elt_rep (i - i0);
fprintf_filtered (stream, _(" <repeats %u times>"), i - i0);
annotate_elt_rep_end ();
fprintf_filtered (stream, ", ");
}
wrap_here (n_spaces (2 + 2 * recurse));
+ maybe_print_array_index (index_type, j + low,
+ stream, format, pretty);
}
- val_print (elttype, VALUE_CONTENTS (v0), 0, 0, stream, format,
- 0, recurse + 1, pretty);
+ val_print (elttype, value_contents (v0), 0, 0, stream, format,
+ 0, recurse + 1, pretty, current_language);
annotate_elt ();
}
}
}
static struct type *
-printable_val_type (struct type *type, char *valaddr)
+printable_val_type (struct type *type, const gdb_byte *valaddr)
{
- return ada_to_fixed_type (ada_aligned_type (type), valaddr, 0, NULL);
+ return ada_to_fixed_type (ada_aligned_type (type), valaddr, 0, NULL, 1);
}
/* Print the character C on STREAM as part of the contents of a literal
if (isascii (c) && isprint (c))
{
if (c == quoter && c == '"')
- fprintf_filtered (stream, "[\"%c\"]", quoter);
+ fprintf_filtered (stream, "\"\"");
else
fprintf_filtered (stream, "%c", c);
}
or 2) of a character. */
static int
-char_at (char *string, int i, int type_len)
+char_at (const gdb_byte *string, int i, int type_len)
{
if (type_len == 1)
return string[i];
a decimal point, and at least one digit before and after the
point. We use GNAT format for NaNs and infinities. */
static void
-ada_print_floating (char *valaddr, struct type *type, struct ui_file *stream)
+ada_print_floating (const gdb_byte *valaddr, struct type *type,
+ struct ui_file *stream)
{
char buffer[64];
char *s, *result;
case TYPE_CODE_SET:
case TYPE_CODE_STRING:
case TYPE_CODE_ERROR:
- case TYPE_CODE_MEMBER:
+ case TYPE_CODE_MEMBERPTR:
+ case TYPE_CODE_METHODPTR:
case TYPE_CODE_METHOD:
case TYPE_CODE_REF:
warning (_("internal error: unhandled type in ada_print_scalar"));
*/
static void
-printstr (struct ui_file *stream, char *string, unsigned int length,
- int force_ellipses, int type_len)
+printstr (struct ui_file *stream, const gdb_byte *string,
+ unsigned int length, int force_ellipses, int type_len)
{
unsigned int i;
unsigned int things_printed = 0;
}
void
-ada_printstr (struct ui_file *stream, char *string, unsigned int length,
- int width, int force_ellipses)
+ada_printstr (struct ui_file *stream, const gdb_byte *string,
+ unsigned int length, int width, int force_ellipses)
{
printstr (stream, string, length, force_ellipses, width);
}
arrays.) */
int
-ada_val_print (struct type *type, char *valaddr0, int embedded_offset,
- CORE_ADDR address, struct ui_file *stream, int format,
- int deref_ref, int recurse, enum val_prettyprint pretty)
+ada_val_print (struct type *type, const gdb_byte *valaddr0,
+ int embedded_offset, CORE_ADDR address,
+ struct ui_file *stream, int format, int deref_ref,
+ int recurse, enum val_prettyprint pretty)
{
struct ada_val_print_args args;
args.type = type;
argsp->recurse, argsp->pretty);
}
+/* Assuming TYPE is a simple array, print the value of this array located
+ at VALADDR. See ada_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 ada_val_print. */
+
+static int
+ada_val_print_array (struct type *type, const gdb_byte *valaddr,
+ CORE_ADDR address, struct ui_file *stream, int format,
+ int deref_ref, int recurse, enum val_prettyprint pretty)
+{
+ struct type *elttype = TYPE_TARGET_TYPE (type);
+ unsigned int eltlen;
+ unsigned int len;
+ int result = 0;
+
+ if (elttype == NULL)
+ eltlen = 0;
+ else
+ eltlen = TYPE_LENGTH (elttype);
+ if (eltlen == 0)
+ len = 0;
+ else
+ len = TYPE_LENGTH (type) / eltlen;
+
+ /* For an array of chars, print with string syntax. */
+ if (ada_is_string_type (type) && (format == 0 || format == 's'))
+ {
+ if (prettyprint_arrays)
+ print_spaces_filtered (2 + 2 * recurse, stream);
+
+ /* If requested, look for the first null char and only print
+ elements up to it. */
+ if (stop_print_at_null)
+ {
+ int temp_len;
+
+ /* Look for a NULL char. */
+ for (temp_len = 0;
+ (temp_len < len
+ && temp_len < print_max
+ && char_at (valaddr, temp_len, eltlen) != 0);
+ temp_len += 1);
+ len = temp_len;
+ }
+
+ printstr (stream, valaddr, len, 0, eltlen);
+ result = len;
+ }
+ else
+ {
+ fprintf_filtered (stream, "(");
+ print_optional_low_bound (stream, type);
+ if (TYPE_FIELD_BITSIZE (type, 0) > 0)
+ val_print_packed_array_elements (type, valaddr, 0, stream,
+ format, recurse, pretty);
+ else
+ val_print_array_elements (type, valaddr, address, stream,
+ format, deref_ref, recurse,
+ pretty, 0);
+ fprintf_filtered (stream, ")");
+ }
+
+ return result;
+}
+
/* See the comment on ada_val_print. This function differs in that it
- * does not catch evaluation errors (leaving that to ada_val_print). */
+ does not catch evaluation errors (leaving that to ada_val_print). */
static int
-ada_val_print_1 (struct type *type, char *valaddr0, int embedded_offset,
- CORE_ADDR address, struct ui_file *stream, int format,
+ada_val_print_1 (struct type *type, const gdb_byte *valaddr0,
+ int embedded_offset, CORE_ADDR address,
+ struct ui_file *stream, int format,
int deref_ref, int recurse, enum val_prettyprint pretty)
{
unsigned int len;
struct type *elttype;
unsigned int eltlen;
LONGEST val;
- char *valaddr = valaddr0 + embedded_offset;
+ const gdb_byte *valaddr = valaddr0 + embedded_offset;
type = ada_check_typedef (type);
retn = 0;
}
else
- retn = ada_val_print_1 (value_type (val), VALUE_CONTENTS (val), 0,
+ retn = ada_val_print_1 (value_type (val), value_contents (val), 0,
VALUE_ADDRESS (val), stream, format,
deref_ref, recurse, pretty);
value_free_to_mark (mark);
parray_of_char =
make_pointer_type
(create_array_type
- (NULL, builtin_type_char,
- create_range_type (NULL, builtin_type_int, 0, 32)), NULL);
+ (NULL, builtin_type_true_char,
+ create_range_type (NULL, builtin_type_int32, 0, 32)), NULL);
printable_val =
value_ind (value_cast (parray_of_char,
call_function_by_hand (func, 1,
&val)));
- fprintf_filtered (stream, "%s", VALUE_CONTENTS (printable_val));
+ fprintf_filtered (stream, "%s", value_contents (printable_val));
return 0;
}
/* No special printing function. Do as best we can. */
struct value *v = value_cast (target_type,
value_from_contents_and_address
(type, valaddr, 0));
- return ada_val_print_1 (target_type, VALUE_CONTENTS (v), 0, 0,
+ return ada_val_print_1 (target_type, value_contents (v), 0, 0,
stream, format, 0, recurse + 1, pretty);
}
else
{
print_scalar_formatted (valaddr, type, format, 0, stream);
}
- else if (ada_is_system_address_type (type))
+ else if (ada_is_system_address_type (type)
+ && TYPE_OBJFILE (type) != NULL)
{
/* FIXME: We want to print System.Address variables using
the same format as for any access type. But for some
reason GNAT encodes the System.Address type as an int,
so we have to work-around this deficiency by handling
- System.Address values as a special case. */
+ System.Address values as a special case.
+
+ We do this only for System.Address types defined in an
+ objfile. For the built-in version of System.Address we
+ have installed the proper type to begin with. */
+
+ struct gdbarch *gdbarch = get_objfile_arch (TYPE_OBJFILE (type));
+ struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
+
fprintf_filtered (stream, "(");
type_print (type, "", stream, -1);
fprintf_filtered (stream, ") ");
- print_address_numeric
- (extract_typed_address (valaddr, builtin_type_void_data_ptr),
- 1, stream);
+ fputs_filtered (paddress (extract_typed_address
+ (valaddr, ptr_type)),
+ stream);
}
else
{
}
break;
+ case TYPE_CODE_FLAGS:
+ if (format)
+ print_scalar_formatted (valaddr, type, format, 0, stream);
+ else
+ val_print_type_code_flags (type, valaddr, stream);
+ break;
+
case TYPE_CODE_FLT:
if (format)
return c_val_print (type, valaddr0, embedded_offset, address, stream,
}
case TYPE_CODE_ARRAY:
- elttype = TYPE_TARGET_TYPE (type);
- if (elttype == NULL)
- eltlen = 0;
- else
- eltlen = TYPE_LENGTH (elttype);
- /* FIXME: This doesn't deal with non-empty arrays of
- 0-length items (not a typical case!) */
- if (eltlen == 0)
- len = 0;
- else
- len = TYPE_LENGTH (type) / eltlen;
-
- /* For an array of chars, print with string syntax. */
- if (ada_is_string_type (type) && (format == 0 || format == 's'))
- {
- if (prettyprint_arrays)
- {
- print_spaces_filtered (2 + 2 * recurse, stream);
- }
- /* If requested, look for the first null char and only print
- elements up to it. */
- if (stop_print_at_null)
- {
- int temp_len;
-
- /* Look for a NULL char. */
- for (temp_len = 0;
- temp_len < len && temp_len < print_max
- && char_at (valaddr, temp_len, eltlen) != 0;
- temp_len += 1);
- len = temp_len;
- }
-
- printstr (stream, valaddr, len, 0, eltlen);
- }
- else
- {
- len = 0;
- fprintf_filtered (stream, "(");
- print_optional_low_bound (stream, type);
- if (TYPE_FIELD_BITSIZE (type, 0) > 0)
- val_print_packed_array_elements (type, valaddr, 0, stream,
- format, recurse, pretty);
- else
- val_print_array_elements (type, valaddr, address, stream,
- format, deref_ref, recurse,
- pretty, 0);
- fprintf_filtered (stream, ")");
- }
- gdb_flush (stream);
- return len;
+ return ada_val_print_array (type, valaddr, address, stream, format,
+ deref_ref, recurse, pretty);
case TYPE_CODE_REF:
+ /* For references, the debugger is expected to print the value as
+ an address if DEREF_REF is null. But printing an address in place
+ of the object value would be confusing to an Ada programmer.
+ So, for Ada values, we print the actual dereferenced value
+ regardless. */
elttype = check_typedef (TYPE_TARGET_TYPE (type));
- /* De-reference the reference */
- if (deref_ref)
- {
- if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
- {
- LONGEST deref_val_int = (LONGEST)
- unpack_pointer (lookup_pointer_type (builtin_type_void),
- valaddr);
- if (deref_val_int != 0)
- {
- struct value *deref_val =
- ada_value_ind (value_from_longest
- (lookup_pointer_type (elttype),
- deref_val_int));
- val_print (value_type (deref_val),
- VALUE_CONTENTS (deref_val), 0,
- VALUE_ADDRESS (deref_val), stream, format,
- deref_ref, recurse + 1, pretty);
- }
- else
- fputs_filtered ("(null)", stream);
- }
- else
- fputs_filtered ("???", stream);
- }
+
+ if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
+ {
+ LONGEST deref_val_int = (LONGEST) unpack_pointer (type, valaddr);
+ if (deref_val_int != 0)
+ {
+ struct value *deref_val =
+ ada_value_ind (value_from_longest
+ (lookup_pointer_type (elttype),
+ deref_val_int));
+ val_print (value_type (deref_val),
+ value_contents (deref_val), 0,
+ VALUE_ADDRESS (deref_val), stream, format,
+ deref_ref, recurse + 1, pretty, current_language);
+ }
+ else
+ fputs_filtered ("(null)", stream);
+ }
+ else
+ fputs_filtered ("???", stream);
+
break;
}
gdb_flush (stream);
}
static int
-print_variant_part (struct type *type, int field_num, char *valaddr,
+print_variant_part (struct type *type, int field_num, const gdb_byte *valaddr,
struct ui_file *stream, int format, int recurse,
enum val_prettyprint pretty, int comma_needed,
- struct type *outer_type, char *outer_valaddr)
+ struct type *outer_type, const gdb_byte *outer_valaddr)
{
struct type *var_type = TYPE_FIELD_TYPE (type, field_num);
int which = ada_which_variant_applies (var_type, outer_type, outer_valaddr);
ada_value_print (struct value *val0, struct ui_file *stream, int format,
enum val_prettyprint pretty)
{
- char *valaddr = VALUE_CONTENTS (val0);
+ const gdb_byte *valaddr = value_contents (val0);
CORE_ADDR address = VALUE_ADDRESS (val0) + value_offset (val0);
struct type *type =
- ada_to_fixed_type (value_type (val0), valaddr, address, NULL);
+ ada_to_fixed_type (value_type (val0), valaddr, address, NULL, 1);
struct value *val =
value_from_contents_and_address (type, valaddr, address);
return 0;
}
- if (TYPE_CODE (type) == TYPE_CODE_ARRAY
- && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) == 0
- && TYPE_CODE (TYPE_INDEX_TYPE (type)) == TYPE_CODE_RANGE)
- {
- /* This is an array of zero-length elements, that is an array
- of null records. This array needs to be printed by hand,
- as the standard routine to print arrays relies on the size of
- the array elements to be nonzero. This is because it computes
- the number of elements in the array by dividing the array size
- by the array element size. */
- fprintf_filtered (stream, "(%d .. %d => ())",
- TYPE_LOW_BOUND (TYPE_INDEX_TYPE (type)),
- TYPE_HIGH_BOUND (TYPE_INDEX_TYPE (type)));
- return 0;
- }
-
- return (val_print (type, VALUE_CONTENTS (val), 0, address,
- stream, format, 1, 0, pretty));
+ return (val_print (type, value_contents (val), 0, address,
+ stream, format, 1, 0, pretty, current_language));
}
static void
-print_record (struct type *type, char *valaddr, struct ui_file *stream,
- int format, int recurse, enum val_prettyprint pretty)
+print_record (struct type *type, const gdb_byte *valaddr,
+ struct ui_file *stream, int format, int recurse,
+ enum val_prettyprint pretty)
{
type = ada_check_typedef (type);
Returns 1 if COMMA_NEEDED or any fields were printed. */
static int
-print_field_values (struct type *type, char *valaddr, struct ui_file *stream,
- int format, int recurse, enum val_prettyprint pretty,
- int comma_needed, struct type *outer_type,
- char *outer_valaddr)
+print_field_values (struct type *type, const gdb_byte *valaddr,
+ struct ui_file *stream, int format, int recurse,
+ enum val_prettyprint pretty, int comma_needed,
+ struct type *outer_type, const gdb_byte *outer_valaddr)
{
int i, len;
bit_pos % HOST_CHAR_BIT,
bit_size,
TYPE_FIELD_TYPE (type, i));
- val_print (TYPE_FIELD_TYPE (type, i), VALUE_CONTENTS (v), 0, 0,
- stream, format, 0, recurse + 1, pretty);
+ val_print (TYPE_FIELD_TYPE (type, i), value_contents (v), 0, 0,
+ stream, format, 0, recurse + 1, pretty,
+ current_language);
}
}
else