/* Support for printing Modula 2 values for GDB, the GNU debugger.
- Copyright (C) 1986-2019 Free Software Foundation, Inc.
+ Copyright (C) 1986-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "c-lang.h"
#include "m2-lang.h"
#include "target.h"
+#include "cli/cli-style.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,
+m2_print_array_contents (struct value *val,
struct ui_file *stream, int recurse,
- struct value *val,
const struct value_print_options *options,
int len);
}
else
{
- fprintf_filtered (stream, " %s }", _("<unknown bounds of set>"));
+ fprintf_styled (stream, metadata_style.style (),
+ " %s }", _("<unknown bounds of set>"));
return;
}
}
}
+static void
+m2_print_unbounded_array (struct value *value,
+ struct ui_file *stream, int recurse,
+ const struct value_print_options *options)
+{
+ CORE_ADDR addr;
+ LONGEST len;
+ struct value *val;
+
+ struct type *type = check_typedef (value_type (value));
+ const gdb_byte *valaddr = value_contents_for_printing (value);
+
+ addr = unpack_pointer (TYPE_FIELD_TYPE (type, 0),
+ (TYPE_FIELD_BITPOS (type, 0) / 8) +
+ valaddr);
+
+ val = value_at_lazy (TYPE_TARGET_TYPE (TYPE_FIELD_TYPE (type, 0)),
+ addr);
+ len = unpack_field_as_long (type, valaddr, 1);
+
+ fprintf_filtered (stream, "{");
+ m2_print_array_contents (val, stream, recurse, options, len);
+ fprintf_filtered (stream, ", HIGH = %d}", (int) len);
+}
+
static void
m2_print_unbounded_array (struct type *type, const gdb_byte *valaddr,
int embedded_offset, CORE_ADDR address,
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);
+ m2_print_array_contents (val, stream, recurse, options, len);
fprintf_filtered (stream, ", HIGH = %d}", (int) len);
}
separated values. */
static void
-m2_print_array_contents (struct type *type, const gdb_byte *valaddr,
- int embedded_offset, CORE_ADDR address,
+m2_print_array_contents (struct value *val,
struct ui_file *stream, int recurse,
- struct value *val,
const struct value_print_options *options,
int len)
{
- type = check_typedef (type);
+ struct type *type = check_typedef (value_type (val));
if (TYPE_LENGTH (type) > 0)
{
|| ((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);
+ val_print_string (type, NULL, value_address (val), len+1, stream,
+ options);
else
{
fprintf_filtered (stream, "{");
- val_print_array_elements (type, embedded_offset,
- address, stream, recurse, val,
- options, 0);
+ value_print_array_elements (val, stream, recurse, options, 0);
fprintf_filtered (stream, "}");
}
}
elttype = check_typedef (elttype);
if (TYPE_STUB (elttype))
{
- fprintf_filtered (stream, _("<incomplete type>"));
- gdb_flush (stream);
+ fprintf_styled (stream, metadata_style.style (),
+ _("<incomplete type>"));
break;
}
else
maybe_bad_bstring:
if (i < 0)
{
- fputs_filtered (_("<error value>"), stream);
+ fputs_styled (_("<error value>"), metadata_style.style (),
+ stream);
goto done;
}
&m2_decorations);
break;
}
- gdb_flush (stream);
+}
+
+/* See m2-lang.h. */
+
+void
+m2_value_print_inner (struct value *val, struct ui_file *stream, int recurse,
+ const struct value_print_options *options)
+{
+ unsigned len;
+ struct type *elttype;
+ CORE_ADDR addr;
+ const gdb_byte *valaddr = value_contents_for_printing (val);
+ const CORE_ADDR address = value_address (val);
+
+ struct type *type = check_typedef (value_type (val));
+ 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));
+ len = TYPE_LENGTH (type) / TYPE_LENGTH (elttype);
+ if (options->prettyformat_arrays)
+ print_spaces_filtered (2 + 2 * recurse, stream);
+ /* For an array of chars, print with string syntax. */
+ if (TYPE_LENGTH (elttype) == 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[temp_len]
+ && temp_len < len && temp_len < options->print_max);
+ temp_len++);
+ len = temp_len;
+ }
+
+ LA_PRINT_STRING (stream, TYPE_TARGET_TYPE (type),
+ valaddr, len, NULL, 0, options);
+ }
+ else
+ {
+ fprintf_filtered (stream, "{");
+ value_print_array_elements (val, stream, recurse,
+ 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, stream, recurse, options);
+ else if (options->format && options->format != 's')
+ value_print_scalar_formatted (val, options, 0, stream);
+ else
+ {
+ addr = unpack_pointer (type, valaddr);
+ 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, 0, address, stream);
+ else if (m2_is_unbounded_array (type))
+ m2_print_unbounded_array (val, stream, recurse, options);
+ else
+ cp_print_value_fields (type, type, 0,
+ address, stream, recurse, val,
+ options, NULL, 0);
+ break;
+
+ case TYPE_CODE_SET:
+ elttype = TYPE_INDEX_TYPE (type);
+ elttype = check_typedef (elttype);
+ if (TYPE_STUB (elttype))
+ {
+ fprintf_styled (stream, metadata_style.style (),
+ _("<incomplete type>"));
+ 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_styled (_("<error value>"), metadata_style.style (),
+ stream);
+ goto done;
+ }
+
+ for (i = low_bound; i <= high_bound; i++)
+ {
+ int element = value_bit_index (type, valaddr, 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, ++i))
+ {
+ int j = i;
+
+ fputs_filtered ("..", stream);
+ while (i + 1 <= high_bound
+ && value_bit_index (type, valaddr, ++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)))
+ {
+ struct value *v = value_cast (TYPE_TARGET_TYPE (type), val);
+ m2_value_print_inner (v, stream, recurse, options);
+ break;
+ }
+ /* FIXME: create_static_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_value_print (val, stream, recurse, options, &m2_decorations);
+ break;
+ }
}
projects / deliverable / binutils-gdb.git / blobdiff