/* Support for printing Ada values for GDB, the GNU debugger.
- Copyright (C) 1986-2014 Free Software Foundation, Inc.
+ Copyright (C) 1986-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "ada-lang.h"
#include "c-lang.h"
#include "infcall.h"
-#include "exceptions.h"
#include "objfiles.h"
+#include "target-float.h"
static int print_field_values (struct type *, const gdb_byte *,
int,
struct ui_file *, int,
- const struct value *,
+ struct value *,
const struct value_print_options *,
int, struct type *, int,
const struct language_defn *);
index_type = TYPE_TARGET_TYPE (index_type);
}
+ /* Don't print the lower bound if it's the default one. */
switch (TYPE_CODE (index_type))
{
case TYPE_CODE_BOOL:
+ case TYPE_CODE_CHAR:
if (low_bound == 0)
return 0;
break;
int offset,
int bitoffset, struct ui_file *stream,
int recurse,
- const struct value *val,
+ struct value *val,
const struct value_print_options *options)
{
unsigned int i;
unsigned int things_printed = 0;
unsigned len;
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 high;
+ struct type *base_index_type;
if (get_discrete_bounds (index_type, &low, &high) < 0)
len = 1;
else
len = high - low + 1;
+
+ if (TYPE_CODE (index_type) == TYPE_CODE_RANGE)
+ base_index_type = TYPE_TARGET_TYPE (index_type);
+ else
+ base_index_type = index_type;
+
+ if (TYPE_CODE (base_index_type) == TYPE_CODE_ENUM)
+ {
+ LONGEST low_pos, high_pos;
+
+ /* Non-contiguous enumerations types can by used as index types
+ so the array length is computed from the positions of the
+ first and last literal in the enumeration type, and not from
+ the values of these literals. */
+
+ if (!discrete_position (base_index_type, low, &low_pos)
+ || !discrete_position (base_index_type, high, &high_pos))
+ {
+ warning (_("unable to get positions in array, use bounds instead"));
+ low_pos = low;
+ high_pos = high;
+ }
+
+ /* The array length should normally be HIGH_POS - LOW_POS + 1.
+ But in Ada we allow LOW_POS to be greater than HIGH_POS for
+ empty arrays. In that situation, the array length is just zero,
+ not negative! */
+
+ if (low_pos > high_pos)
+ len = 0;
+ else
+ len = high_pos - low_pos + 1;
+ }
}
i = 0;
(i * bitsize) / HOST_CHAR_BIT,
(i * bitsize) % HOST_CHAR_BIT,
bitsize, elttype);
- if (!value_available_contents_eq (v0, value_embedded_offset (v0),
- v1, value_embedded_offset (v1),
- eltlen))
+ if (TYPE_LENGTH (check_typedef (value_type (v0)))
+ != TYPE_LENGTH (check_typedef (value_type (v1))))
+ break;
+ if (!value_contents_eq (v0, value_embedded_offset (v0),
+ v1, value_embedded_offset (v1),
+ TYPE_LENGTH (check_typedef (value_type (v0)))))
break;
}
struct value_print_options opts = *options;
opts.deref_ref = 0;
- val_print (elttype, value_contents_for_printing (v0),
+ val_print (elttype,
value_embedded_offset (v0), 0, stream,
recurse + 1, v0, &opts, current_language);
annotate_elt_rep (i - i0);
maybe_print_array_index (index_type, j + low,
stream, options);
}
- val_print (elttype, value_contents_for_printing (v0),
+ val_print (elttype,
value_embedded_offset (v0), 0, stream,
recurse + 1, v0, &opts, current_language);
annotate_elt ();
ada_print_floating (const gdb_byte *valaddr, struct type *type,
struct ui_file *stream)
{
- char *s, *result;
- struct ui_file *tmp_stream = mem_fileopen ();
- struct cleanup *cleanups = make_cleanup_ui_file_delete (tmp_stream);
+ string_file tmp_stream;
- print_floating (valaddr, type, tmp_stream);
- result = ui_file_xstrdup (tmp_stream, NULL);
- make_cleanup (xfree, result);
+ print_floating (valaddr, type, &tmp_stream);
+
+ std::string &s = tmp_stream.string ();
+ size_t skip_count = 0;
/* Modify for Ada rules. */
- s = strstr (result, "inf");
- if (s == NULL)
- s = strstr (result, "Inf");
- if (s == NULL)
- s = strstr (result, "INF");
- if (s != NULL)
- strcpy (s, "Inf");
+ size_t pos = s.find ("inf");
+ if (pos == std::string::npos)
+ pos = s.find ("Inf");
+ if (pos == std::string::npos)
+ pos = s.find ("INF");
+ if (pos != std::string::npos)
+ s.replace (pos, 3, "Inf");
- if (s == NULL)
+ if (pos == std::string::npos)
{
- s = strstr (result, "nan");
- if (s == NULL)
- s = strstr (result, "NaN");
- if (s == NULL)
- s = strstr (result, "Nan");
- if (s != NULL)
+ pos = s.find ("nan");
+ if (pos == std::string::npos)
+ pos = s.find ("NaN");
+ if (pos == std::string::npos)
+ pos = s.find ("Nan");
+ if (pos != std::string::npos)
{
- s[0] = s[2] = 'N';
- if (result[0] == '-')
- result += 1;
+ s[pos] = s[pos + 2] = 'N';
+ if (s[0] == '-')
+ skip_count = 1;
}
}
- if (s == NULL && strchr (result, '.') == NULL)
+ if (pos == std::string::npos
+ && s.find ('.') == std::string::npos)
{
- s = strchr (result, 'e');
- if (s == NULL)
- fprintf_filtered (stream, "%s.0", result);
+ pos = s.find ('e');
+ if (pos == std::string::npos)
+ fprintf_filtered (stream, "%s.0", s.c_str ());
else
- fprintf_filtered (stream, "%.*s.0%s", (int) (s-result), result, s);
+ fprintf_filtered (stream, "%.*s.0%s", (int) pos, s.c_str (), &s[pos]);
}
else
- fprintf_filtered (stream, "%s", result);
-
- do_cleanups (cleanups);
+ fprintf_filtered (stream, "%s", &s[skip_count]);
}
void
print_variant_part (struct type *type, int field_num,
const gdb_byte *valaddr, int offset,
struct ui_file *stream, int recurse,
- const struct value *val,
+ struct value *val,
const struct value_print_options *options,
int comma_needed,
struct type *outer_type, int outer_offset,
static int
print_field_values (struct type *type, const gdb_byte *valaddr,
int offset, struct ui_file *stream, int recurse,
- const struct value *val,
+ struct value *val,
const struct value_print_options *options,
int comma_needed,
struct type *outer_type, int outer_offset,
if (TYPE_FIELD_PACKED (type, i))
{
- struct value *v;
-
/* Bitfields require special handling, especially due to byte
order problems. */
if (HAVE_CPLUS_STRUCT (type) && TYPE_FIELD_IGNORE (type, i))
}
else
{
+ struct value *v;
int bit_pos = TYPE_FIELD_BITPOS (type, i);
int bit_size = TYPE_FIELD_BITSIZE (type, i);
struct value_print_options opts;
opts = *options;
opts.deref_ref = 0;
val_print (TYPE_FIELD_TYPE (type, i),
- value_contents_for_printing (v),
value_embedded_offset (v), 0,
stream, recurse + 1, v,
&opts, language);
struct value_print_options opts = *options;
opts.deref_ref = 0;
- val_print (TYPE_FIELD_TYPE (type, i), valaddr,
+ val_print (TYPE_FIELD_TYPE (type, i),
(offset + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT),
0, stream, recurse + 1, val, &opts, language);
}
ada_val_print_string (struct type *type, const gdb_byte *valaddr,
int offset, int offset_aligned, CORE_ADDR address,
struct ui_file *stream, int recurse,
- const struct value *original_value,
+ struct value *original_value,
const struct value_print_options *options)
{
enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
ada_val_print_gnat_array (struct type *type, const gdb_byte *valaddr,
int offset, CORE_ADDR address,
struct ui_file *stream, int recurse,
- const struct value *original_value,
+ struct value *original_value,
const struct value_print_options *options,
const struct language_defn *language)
{
fprintf_filtered (stream, "0x0");
}
else
- val_print (value_type (val), value_contents_for_printing (val),
+ val_print (value_type (val),
value_embedded_offset (val), value_address (val),
stream, recurse, val, options, language);
value_free_to_mark (mark);
ada_val_print_ptr (struct type *type, const gdb_byte *valaddr,
int offset, int offset_aligned, CORE_ADDR address,
struct ui_file *stream, int recurse,
- const struct value *original_value,
+ struct value *original_value,
const struct value_print_options *options,
const struct language_defn *language)
{
- val_print (type, valaddr, offset, address, stream, recurse,
+ val_print (type, offset, address, stream, recurse,
original_value, options, language_def (language_c));
if (ada_is_tag_type (type))
ada_val_print_num (struct type *type, const gdb_byte *valaddr,
int offset, int offset_aligned, CORE_ADDR address,
struct ui_file *stream, int recurse,
- const struct value *original_value,
+ struct value *original_value,
const struct value_print_options *options,
const struct language_defn *language)
{
if (ada_is_fixed_point_type (type))
{
- LONGEST v = unpack_long (type, valaddr + offset_aligned);
-
- fprintf_filtered (stream, TYPE_LENGTH (type) < 4 ? "%.11g" : "%.17g",
- (double) ada_fixed_to_float (type, v));
+ struct value *scale = ada_scaling_factor (type);
+ struct value *v = value_from_contents (type, valaddr + offset_aligned);
+ v = value_cast (value_type (scale), v);
+ v = value_binop (v, scale, BINOP_MUL);
+
+ const char *fmt = TYPE_LENGTH (type) < 4 ? "%.11g" : "%.17g";
+ std::string str
+ = target_float_to_string (value_contents (v), value_type (v), fmt);
+ fputs_filtered (str.c_str (), stream);
return;
}
else if (TYPE_CODE (type) == TYPE_CODE_RANGE)
= value_from_contents_and_address (type, valaddr + offset, 0);
struct value *v = value_cast (target_type, v1);
- val_print (target_type, value_contents_for_printing (v),
+ val_print (target_type,
value_embedded_offset (v), 0, stream,
recurse + 1, v, options, language);
}
else
- val_print (TYPE_TARGET_TYPE (type), valaddr, offset,
+ val_print (TYPE_TARGET_TYPE (type), offset,
address, stream, recurse, original_value,
options, language);
return;
struct value_print_options opts = *options;
opts.format = format;
- val_print_scalar_formatted (type, valaddr, offset_aligned,
+ val_print_scalar_formatted (type, offset_aligned,
original_value, &opts, 0, stream);
}
else if (ada_is_system_address_type (type))
}
else
{
- val_print_type_code_int (type, valaddr + offset_aligned, stream);
+ val_print_scalar_formatted (type, offset_aligned,
+ original_value, options, 0, stream);
if (ada_is_character_type (type))
{
LONGEST c;
ada_val_print_enum (struct type *type, const gdb_byte *valaddr,
int offset, int offset_aligned, CORE_ADDR address,
struct ui_file *stream, int recurse,
- const struct value *original_value,
+ struct value *original_value,
const struct value_print_options *options,
const struct language_defn *language)
{
if (options->format)
{
- val_print_scalar_formatted (type, valaddr, offset_aligned,
+ val_print_scalar_formatted (type, offset_aligned,
original_value, options, 0, stream);
return;
}
ada_val_print_flt (struct type *type, const gdb_byte *valaddr,
int offset, int offset_aligned, CORE_ADDR address,
struct ui_file *stream, int recurse,
- const struct value *original_value,
+ struct value *original_value,
const struct value_print_options *options,
const struct language_defn *language)
{
if (options->format)
{
- val_print (type, valaddr, offset, address, stream, recurse,
+ val_print (type, offset, address, stream, recurse,
original_value, options, language_def (language_c));
return;
}
ada_val_print_struct_union
(struct type *type, const gdb_byte *valaddr, int offset,
int offset_aligned, CORE_ADDR address, struct ui_file *stream,
- int recurse, const struct value *original_value,
+ int recurse, struct value *original_value,
const struct value_print_options *options,
const struct language_defn *language)
{
ada_val_print_array (struct type *type, const gdb_byte *valaddr,
int offset, int offset_aligned, CORE_ADDR address,
struct ui_file *stream, int recurse,
- const struct value *original_value,
+ struct value *original_value,
const struct value_print_options *options)
{
/* For an array of characters, print with string syntax. */
0, stream, recurse,
original_value, options);
else
- val_print_array_elements (type, valaddr, offset_aligned, address,
+ val_print_array_elements (type, offset_aligned, address,
stream, recurse, original_value,
options, 0);
fprintf_filtered (stream, ")");
ada_val_print_ref (struct type *type, const gdb_byte *valaddr,
int offset, int offset_aligned, CORE_ADDR address,
struct ui_file *stream, int recurse,
- const struct value *original_value,
+ struct value *original_value,
const struct value_print_options *options,
const struct language_defn *language)
{
if (ada_is_tagged_type (value_type (deref_val), 1))
deref_val = ada_tag_value_at_base_address (deref_val);
+ /* Make sure that the object does not have an unreasonable size
+ before trying to print it. This can happen for instance with
+ references to dynamic objects whose contents is uninitialized
+ (Eg: an array whose bounds are not set yet). */
+ ada_ensure_varsize_limit (value_type (deref_val));
+
+ if (value_lazy (deref_val))
+ value_fetch_lazy (deref_val);
+
val_print (value_type (deref_val),
- value_contents_for_printing (deref_val),
value_embedded_offset (deref_val),
value_address (deref_val), stream, recurse + 1,
deref_val, options, language);
does not catch evaluation errors (leaving that to ada_val_print). */
static void
-ada_val_print_1 (struct type *type, const gdb_byte *valaddr,
+ada_val_print_1 (struct type *type,
int offset, CORE_ADDR address,
struct ui_file *stream, int recurse,
- const struct value *original_value,
+ struct value *original_value,
const struct value_print_options *options,
const struct language_defn *language)
{
int offset_aligned;
+ const gdb_byte *valaddr = value_contents_for_printing (original_value);
type = ada_check_typedef (type);
offset_aligned = offset + ada_aligned_value_addr (type, valaddr) - valaddr;
type = printable_val_type (type, valaddr + offset_aligned);
+ type = resolve_dynamic_type (type, valaddr + offset_aligned,
+ address + offset_aligned);
switch (TYPE_CODE (type))
{
default:
- val_print (type, valaddr, offset, address, stream, recurse,
+ val_print (type, offset, address, stream, recurse,
original_value, options, language_def (language_c));
break;
function; they are identical. */
void
-ada_val_print (struct type *type, const gdb_byte *valaddr,
+ada_val_print (struct type *type,
int embedded_offset, CORE_ADDR address,
struct ui_file *stream, int recurse,
- const struct value *val,
+ struct value *val,
const struct value_print_options *options)
{
- volatile struct gdb_exception except;
-
- /* XXX: this catches QUIT/ctrl-c as well. Isn't that busted? */
- TRY_CATCH (except, RETURN_MASK_ALL)
+ TRY
{
- ada_val_print_1 (type, valaddr, embedded_offset, address,
+ ada_val_print_1 (type, embedded_offset, address,
stream, recurse, val, options,
current_language);
}
+ CATCH (except, RETURN_MASK_ERROR)
+ {
+ fprintf_filtered (stream, _("<error reading variable: %s>"),
+ except.message);
+ }
+ END_CATCH
}
void
opts = *options;
opts.deref_ref = 1;
- val_print (type, value_contents_for_printing (val),
+ val_print (type,
value_embedded_offset (val), address,
stream, 0, val, &opts, current_language);
}
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