/* Support for printing Ada types for GDB, the GNU debugger.
- Copyright (C) 1986-2019 Free Software Foundation, Inc.
+ Copyright (C) 1986-2021 Free Software Foundation, Inc.
This file is part of GDB.
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
-#include "gdb_obstack.h"
#include "bfd.h" /* Binary File Description */
-#include "symtab.h"
#include "gdbtypes.h"
-#include "expression.h"
#include "value.h"
-#include "gdbcore.h"
-#include "target.h"
-#include "command.h"
-#include "gdbcmd.h"
-#include "language.h"
-#include "demangle.h"
#include "c-lang.h"
#include "cli/cli-style.h"
#include "typeprint.h"
{
struct type *subtype;
- if (TYPE_CODE (type) != TYPE_CODE_RANGE)
+ if (type->code () != TYPE_CODE_RANGE)
return 0;
subtype = TYPE_TARGET_TYPE (type);
type = TYPE_TARGET_TYPE (type);
}
- switch (TYPE_CODE (type))
+ switch (type->code ())
{
case TYPE_CODE_RANGE:
case TYPE_CODE_ENUM:
lo = ada_discrete_type_low_bound (type);
hi = ada_discrete_type_high_bound (type);
}
- catch (const gdb_exception_RETURN_MASK_ERROR &e)
+ catch (const gdb_exception_error &e)
{
/* This can happen when the range is dynamic. Sometimes,
resolving dynamic property values requires us to have
break;
default:
fprintf_filtered (stream, "%.*s",
- ada_name_prefix_len (TYPE_NAME (type)),
- TYPE_NAME (type));
+ ada_name_prefix_len (type->name ()),
+ type->name ());
break;
}
}
if (ada_scan_number (bounds, *n, &B, n))
{
/* STABS decodes all range types which bounds are 0 .. -1 as
- unsigned integers (ie. the type code is TYPE_CODE_INT, not
- TYPE_CODE_RANGE). Unfortunately, ada_print_scalar() relies
- on the unsigned flag to determine whether the bound should
- be printed as a signed or an unsigned value. This causes
- the upper bound of the 0 .. -1 range types to be printed as
- a very large unsigned number instead of -1.
- To workaround this stabs deficiency, we replace the TYPE by NULL
- to indicate default output when we detect that the bound is negative,
- and the type is a TYPE_CODE_INT. The bound is negative when
- 'm' is the last character of the number scanned in BOUNDS. */
- if (bounds[*n - 1] == 'm' && TYPE_CODE (type) == TYPE_CODE_INT)
+ unsigned integers (ie. the type code is TYPE_CODE_INT, not
+ TYPE_CODE_RANGE). Unfortunately, ada_print_scalar() relies
+ on the unsigned flag to determine whether the bound should
+ be printed as a signed or an unsigned value. This causes
+ the upper bound of the 0 .. -1 range types to be printed as
+ a very large unsigned number instead of -1.
+ To workaround this stabs deficiency, we replace the TYPE by NULL
+ to indicate default output when we detect that the bound is negative,
+ and the type is a TYPE_CODE_INT. The bound is negative when
+ 'm' is the last character of the number scanned in BOUNDS. */
+ if (bounds[*n - 1] == 'm' && type->code () == TYPE_CODE_INT)
type = NULL;
ada_print_scalar (type, B, stream);
if (bounds[*n] == '_')
const char *subtype_info;
gdb_assert (raw_type != NULL);
- name = TYPE_NAME (raw_type);
+ name = raw_type->name ();
gdb_assert (name != NULL);
- if (TYPE_CODE (raw_type) == TYPE_CODE_RANGE)
+ if (raw_type->code () == TYPE_CODE_RANGE)
base_type = TYPE_TARGET_TYPE (raw_type);
else
base_type = raw_type;
static void
print_enum_type (struct type *type, struct ui_file *stream)
{
- int len = TYPE_NFIELDS (type);
+ int len = type->num_fields ();
int i;
LONGEST lastval;
if (i)
fprintf_filtered (stream, ", ");
wrap_here (" ");
- fputs_filtered (ada_enum_name (TYPE_FIELD_NAME (type, i)), stream);
+ fputs_styled (ada_enum_name (TYPE_FIELD_NAME (type, i)),
+ variable_name_style.style (), stream);
if (lastval != TYPE_FIELD_ENUMVAL (type, i))
{
fprintf_filtered (stream, " => %s",
fprintf_filtered (stream, ")");
}
-/* Print representation of Ada fixed-point type TYPE on STREAM. */
-
-static void
-print_fixed_point_type (struct type *type, struct ui_file *stream)
-{
- struct value *delta = ada_delta (type);
- struct value *small = ada_scaling_factor (type);
-
- if (delta == nullptr)
- fprintf_filtered (stream, "delta ??");
- else
- {
- std::string str;
- str = target_float_to_string (value_contents (delta),
- value_type (delta), "%g");
- fprintf_filtered (stream, "delta %s", str.c_str());
- if (!value_equal (delta, small))
- {
- str = target_float_to_string (value_contents (small),
- value_type (small), "%g");
- fprintf_filtered (stream, " <'small = %s>", str.c_str());
- }
- }
-}
-
/* Print simple (constrained) array type TYPE on STREAM. LEVEL is the
recursion (indentation) level, in case the element type itself has
nested structure, and SHOW is the number of levels of internal
if (type == NULL)
{
- fprintf_filtered (stream, _("<undecipherable array type>"));
+ fprintf_styled (stream, metadata_style.style (),
+ _("<undecipherable array type>"));
return;
}
bitsize = 0;
if (range_desc_type == NULL)
{
- for (arr_type = type; TYPE_CODE (arr_type) == TYPE_CODE_ARRAY;
+ for (arr_type = type; arr_type->code () == TYPE_CODE_ARRAY;
arr_type = TYPE_TARGET_TYPE (arr_type))
{
if (arr_type != type)
fprintf_filtered (stream, ", ");
- print_range (TYPE_INDEX_TYPE (arr_type), stream,
+ print_range (arr_type->index_type (), stream,
0 /* bounds_prefered_p */);
if (TYPE_FIELD_BITSIZE (arr_type, 0) > 0)
bitsize = TYPE_FIELD_BITSIZE (arr_type, 0);
{
int k;
- n_indices = TYPE_NFIELDS (range_desc_type);
+ n_indices = range_desc_type->num_fields ();
for (k = 0, arr_type = type;
k < n_indices;
k += 1, arr_type = TYPE_TARGET_TYPE (arr_type))
{
if (k > 0)
fprintf_filtered (stream, ", ");
- print_range_type (TYPE_FIELD_TYPE (range_desc_type, k),
+ print_range_type (range_desc_type->field (k).type (),
stream, 0 /* bounds_prefered_p */);
if (TYPE_FIELD_BITSIZE (arr_type, 0) > 0)
bitsize = TYPE_FIELD_BITSIZE (arr_type, 0);
values. Return non-zero if the field is an encoding of
discriminant values, as in a standard variant record, and 0 if the
field is not so encoded (as happens with single-component variants
- in types annotated with pragma Unchecked_Variant). */
+ in types annotated with pragma Unchecked_Union). */
static int
print_choices (struct type *type, int field_num, struct ui_file *stream,
}
Huh:
- fprintf_filtered (stream, "?? =>");
+ fprintf_filtered (stream, "? =>");
return 0;
}
struct type *var_type, *par_type;
struct type *discr_type;
- var_type = TYPE_FIELD_TYPE (type, field_num);
+ var_type = type->field (field_num).type ();
discr_type = ada_variant_discrim_type (var_type, outer_type);
- if (TYPE_CODE (var_type) == TYPE_CODE_PTR)
+ if (var_type->code () == TYPE_CODE_PTR)
{
var_type = TYPE_TARGET_TYPE (var_type);
- if (var_type == NULL || TYPE_CODE (var_type) != TYPE_CODE_UNION)
+ if (var_type == NULL || var_type->code () != TYPE_CODE_UNION)
return;
}
if (par_type != NULL)
var_type = par_type;
- for (i = 0; i < TYPE_NFIELDS (var_type); i += 1)
+ for (i = 0; i < var_type->num_fields (); i += 1)
{
fprintf_filtered (stream, "\n%*swhen ", level + 4, "");
if (print_choices (var_type, i, stream, discr_type))
{
- if (print_record_field_types (TYPE_FIELD_TYPE (var_type, i),
+ if (print_record_field_types (var_type->field (i).type (),
outer_type, stream, show, level + 4,
flags)
<= 0)
struct ui_file *stream, int show, int level,
const struct type_print_options *flags)
{
- fprintf_filtered (stream, "\n%*scase %s is", level + 4, "",
- ada_variant_discrim_name
- (TYPE_FIELD_TYPE (type, field_num)));
+ const char *variant
+ = ada_variant_discrim_name (type->field (field_num).type ());
+ if (*variant == '\0')
+ variant = "?";
+
+ fprintf_filtered (stream, "\n%*scase %s is", level + 4, "", variant);
print_variant_clauses (type, field_num, outer_type, stream, show,
level + 4, flags);
fprintf_filtered (stream, "\n%*send case;", level + 4, "");
flds = 0;
- if (fld0 > fld1 && TYPE_STUB (type))
+ if (fld0 > fld1 && type->is_stub ())
return -1;
for (i = fld0; i <= fld1; i += 1)
if (ada_is_parent_field (type, i) || ada_is_ignored_field (type, i))
;
else if (ada_is_wrapper_field (type, i))
- flds += print_record_field_types (TYPE_FIELD_TYPE (type, i), type,
+ flds += print_record_field_types (type->field (i).type (), type,
stream, show, level, flags);
else if (ada_is_variant_part (type, i))
{
{
flds += 1;
fprintf_filtered (stream, "\n%*s", level + 4, "");
- ada_print_type (TYPE_FIELD_TYPE (type, i),
+ ada_print_type (type->field (i).type (),
TYPE_FIELD_NAME (type, i),
stream, show - 1, level + 4, flags);
fprintf_filtered (stream, ";");
return flds;
}
+static void print_record_field_types_dynamic
+ (const gdb::array_view<variant_part> &parts,
+ int from, int to, struct type *type, struct ui_file *stream,
+ int show, int level, const struct type_print_options *flags);
+
+/* Print the choices encoded by VARIANT on STREAM. LEVEL is the
+ indentation level. The type of the discriminant for VARIANT is
+ given by DISR_TYPE. */
+
+static void
+print_choices (struct type *discr_type, const variant &variant,
+ struct ui_file *stream, int level)
+{
+ fprintf_filtered (stream, "\n%*swhen ", level, "");
+ if (variant.is_default ())
+ fprintf_filtered (stream, "others");
+ else
+ {
+ bool first = true;
+ for (const discriminant_range &range : variant.discriminants)
+ {
+ if (!first)
+ fprintf_filtered (stream, " | ");
+ first = false;
+
+ ada_print_scalar (discr_type, range.low, stream);
+ if (range.low != range.high)
+ ada_print_scalar (discr_type, range.high, stream);
+ }
+ }
+
+ fprintf_filtered (stream, " =>");
+}
+
+/* Print a single variant part, PART, on STREAM. TYPE is the
+ enclosing type. SHOW, LEVEL, and FLAGS are the usual type-printing
+ settings. This prints information about PART and the fields it
+ controls. It returns the index of the next field that should be
+ shown -- that is, one after the last field printed by this
+ call. */
+
+static int
+print_variant_part (const variant_part &part,
+ struct type *type, struct ui_file *stream,
+ int show, int level,
+ const struct type_print_options *flags)
+{
+ struct type *discr_type = nullptr;
+ const char *name;
+ if (part.discriminant_index == -1)
+ name = "?";
+ else
+ {
+ name = TYPE_FIELD_NAME (type, part.discriminant_index);
+ discr_type = type->field (part.discriminant_index).type ();
+ }
+
+ fprintf_filtered (stream, "\n%*scase %s is", level + 4, "", name);
+
+ int last_field = -1;
+ for (const variant &variant : part.variants)
+ {
+ print_choices (discr_type, variant, stream, level + 8);
+
+ if (variant.first_field == variant.last_field)
+ fprintf_filtered (stream, " null;");
+ else
+ {
+ print_record_field_types_dynamic (variant.parts,
+ variant.first_field,
+ variant.last_field, type, stream,
+ show, level + 8, flags);
+ last_field = variant.last_field;
+ }
+ }
+
+ fprintf_filtered (stream, "\n%*send case;", level + 4, "");
+
+ return last_field;
+}
+
+/* Print some fields of TYPE to STREAM. SHOW, LEVEL, and FLAGS are
+ the usual type-printing settings. PARTS is the array of variant
+ parts that correspond to the range of fields to be printed. FROM
+ and TO are the range of fields to print. */
+
+static void
+print_record_field_types_dynamic (const gdb::array_view<variant_part> &parts,
+ int from, int to,
+ struct type *type, struct ui_file *stream,
+ int show, int level,
+ const struct type_print_options *flags)
+{
+ int field = from;
+
+ for (const variant_part &part : parts)
+ {
+ if (part.variants.empty ())
+ continue;
+
+ /* Print any non-varying fields. */
+ int first_varying = part.variants[0].first_field;
+ print_selected_record_field_types (type, type, field,
+ first_varying - 1, stream,
+ show, level, flags);
+
+ field = print_variant_part (part, type, stream, show, level, flags);
+ }
+
+ /* Print any trailing fields that we were asked to print. */
+ print_selected_record_field_types (type, type, field, to - 1, stream, show,
+ level, flags);
+}
+
/* Print a description on STREAM of all fields of record or union type
TYPE, as for print_selected_record_field_types, above. */
struct ui_file *stream, int show, int level,
const struct type_print_options *flags)
{
+ struct dynamic_prop *prop = type->dyn_prop (DYN_PROP_VARIANT_PARTS);
+ if (prop != nullptr)
+ {
+ if (prop->kind () == PROP_TYPE)
+ {
+ type = prop->original_type ();
+ prop = type->dyn_prop (DYN_PROP_VARIANT_PARTS);
+ }
+ gdb_assert (prop->kind () == PROP_VARIANT_PARTS);
+ print_record_field_types_dynamic (*prop->variant_parts (),
+ 0, type->num_fields (),
+ type, stream, show, level, flags);
+ return type->num_fields ();
+ }
+
return print_selected_record_field_types (type, outer_type,
- 0, TYPE_NFIELDS (type) - 1,
+ 0, type->num_fields () - 1,
stream, show, level, flags);
}
{
if (show < 0)
fprintf_filtered (stream, "record (?) is ... end record");
- else if (TYPE_NFIELDS (type) == 0)
+ else if (type->num_fields () == 0)
fprintf_filtered (stream, "record (?) is null; end record");
else
{
fprintf_filtered (stream, "record (?) is\n%*scase ? is", level + 4, "");
- for (i = 0; i < TYPE_NFIELDS (type); i += 1)
+ for (i = 0; i < type->num_fields (); i += 1)
{
fprintf_filtered (stream, "\n%*swhen ? =>\n%*s", level + 8, "",
level + 12, "");
- ada_print_type (TYPE_FIELD_TYPE (type, i),
+ ada_print_type (type->field (i).type (),
TYPE_FIELD_NAME (type, i),
stream, show - 1, level + 12, flags);
fprintf_filtered (stream, ";");
print_func_type (struct type *type, struct ui_file *stream, const char *name,
const struct type_print_options *flags)
{
- int i, len = TYPE_NFIELDS (type);
+ int i, len = type->num_fields ();
if (TYPE_TARGET_TYPE (type) != NULL
- && TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_VOID)
+ && TYPE_TARGET_TYPE (type)->code () == TYPE_CODE_VOID)
fprintf_filtered (stream, "procedure");
else
fprintf_filtered (stream, "function");
wrap_here (" ");
}
fprintf_filtered (stream, "a%d: ", i + 1);
- ada_print_type (TYPE_FIELD_TYPE (type, i), "", stream, -1, 0,
+ ada_print_type (type->field (i).type (), "", stream, -1, 0,
flags);
}
fprintf_filtered (stream, ")");
if (TYPE_TARGET_TYPE (type) == NULL)
fprintf_filtered (stream, " return <unknown return type>");
- else if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_VOID)
+ else if (TYPE_TARGET_TYPE (type)->code () != TYPE_CODE_VOID)
{
fprintf_filtered (stream, " return ");
ada_print_type (TYPE_TARGET_TYPE (type), "", stream, 0, 0, flags);
const struct type_print_options *flags)
{
struct type *type = ada_check_typedef (ada_get_base_type (type0));
- char *type_name = decoded_type_name (type0);
+ /* If we can decode the original type name, use it. However, there
+ are cases where the original type is an internally-generated type
+ with a name that can't be decoded (and whose encoded name might
+ not actually bear any relation to the type actually declared in
+ the sources). In that case, try using the name of the base type
+ in its place.
+
+ Note that we looked at the possibility of always using the name
+ of the base type. This does not always work, unfortunately, as
+ there are situations where it's the base type which has an
+ internally-generated name. */
+ const char *type_name = decoded_type_name (type0);
+ if (type_name == nullptr)
+ type_name = decoded_type_name (type);
int is_var_decl = (varstring != NULL && varstring[0] != '\0');
if (type == NULL)
if (is_var_decl)
fprintf_filtered (stream, "%.*s: ",
ada_name_prefix_len (varstring), varstring);
- fprintf_filtered (stream, "<null type?>");
+ fprintf_styled (stream, metadata_style.style (), "<null type?>");
return;
}
- if (show > 0)
- type = ada_check_typedef (type);
-
- if (is_var_decl && TYPE_CODE (type) != TYPE_CODE_FUNC)
+ if (is_var_decl && type->code () != TYPE_CODE_FUNC)
fprintf_filtered (stream, "%.*s: ",
ada_name_prefix_len (varstring), varstring);
if (ada_is_aligner_type (type))
ada_print_type (ada_aligned_type (type), "", stream, show, level, flags);
else if (ada_is_constrained_packed_array_type (type)
- && TYPE_CODE (type) != TYPE_CODE_PTR)
+ && type->code () != TYPE_CODE_PTR)
print_array_type (type, stream, show, level, flags);
else
- switch (TYPE_CODE (type))
+ switch (type->code ())
{
default:
fprintf_filtered (stream, "<");
break;
case TYPE_CODE_PTR:
case TYPE_CODE_TYPEDEF:
- fprintf_filtered (stream, "access ");
+ /* An __XVL field is not truly a pointer, so don't print
+ "access" in this case. */
+ if (type->code () != TYPE_CODE_PTR
+ || strstr (varstring, "___XVL") == nullptr)
+ fprintf_filtered (stream, "access ");
ada_print_type (TYPE_TARGET_TYPE (type), "", stream, show, level,
flags);
break;
fprintf_filtered (stream, "(false, true)");
break;
case TYPE_CODE_INT:
- if (ada_is_fixed_point_type (type))
- print_fixed_point_type (type, stream);
- else
- {
- const char *name = ada_type_name (type);
-
- if (!ada_is_range_type_name (name))
- fprintf_filtered (stream, _("<%s-byte integer>"),
- pulongest (TYPE_LENGTH (type)));
- else
- {
- fprintf_filtered (stream, "range ");
- print_range_type (type, stream, 1 /* bounds_prefered_p */);
- }
- }
+ {
+ const char *name = ada_type_name (type);
+
+ if (!ada_is_range_type_name (name))
+ fprintf_styled (stream, metadata_style.style (),
+ _("<%s-byte integer>"),
+ pulongest (TYPE_LENGTH (type)));
+ else
+ {
+ fprintf_filtered (stream, "range ");
+ print_range_type (type, stream, 1 /* bounds_prefered_p */);
+ }
+ }
break;
case TYPE_CODE_RANGE:
- if (ada_is_fixed_point_type (type))
- print_fixed_point_type (type, stream);
+ if (is_fixed_point_type (type))
+ {
+ fprintf_filtered (stream, "<");
+ print_type_fixed_point (type, stream);
+ fprintf_filtered (stream, ">");
+ }
else if (ada_is_modular_type (type))
fprintf_filtered (stream, "mod %s",
int_string (ada_modulus (type), 10, 0, 0, 1));
}
break;
case TYPE_CODE_FLT:
- fprintf_filtered (stream, _("<%s-byte float>"),
- pulongest (TYPE_LENGTH (type)));
+ fprintf_styled (stream, metadata_style.style (),
+ _("<%s-byte float>"),
+ pulongest (TYPE_LENGTH (type)));
break;
case TYPE_CODE_ENUM:
if (show < 0)
void
ada_print_typedef (struct type *type, struct symbol *new_symbol,
- struct ui_file *stream)
+ struct ui_file *stream)
{
type = ada_check_typedef (type);
ada_print_type (type, "", stream, 0, 0, &type_print_raw_options);
- fprintf_filtered (stream, "\n");
}
projects / deliverable / binutils-gdb.git / blobdiff