/* Support for printing Ada values for GDB, the GNU debugger.
- Copyright (C) 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1997, 2001, 2002,
- 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 1986-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include <ctype.h>
-#include "gdb_string.h"
-#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "value.h"
-#include "demangle.h"
#include "valprint.h"
#include "language.h"
#include "annotate.h"
#include "ada-lang.h"
-#include "c-lang.h"
-#include "infcall.h"
-#include "exceptions.h"
-#include "objfiles.h"
-
-static void print_record (struct type *, const gdb_byte *, int,
- struct ui_file *,
- int,
- const struct value *,
- const struct value_print_options *);
-
-static int print_field_values (struct type *, const gdb_byte *,
- int,
+#include "target-float.h"
+#include "cli/cli-style.h"
+#include "gdbarch.h"
+
+static int print_field_values (struct value *, struct value *,
struct ui_file *, int,
- const struct value *,
const struct value_print_options *,
- int, struct type *, int);
-
-static void adjust_type_signedness (struct type *);
+ int, const struct language_defn *);
-static int ada_val_print_1 (struct type *, const gdb_byte *, int, CORE_ADDR,
- struct ui_file *, int,
- const struct value *,
- const struct value_print_options *);
\f
/* Make TYPE unsigned if its range of values includes no negatives. */
static void
adjust_type_signedness (struct type *type)
{
- if (type != NULL && TYPE_CODE (type) == TYPE_CODE_RANGE
+ if (type != NULL && type->code () == TYPE_CODE_RANGE
&& TYPE_LOW_BOUND (type) >= 0)
TYPE_UNSIGNED (type) = 1;
}
index_type = TYPE_INDEX_TYPE (type);
- if (TYPE_CODE (index_type) == TYPE_CODE_RANGE)
+ while (index_type->code () == TYPE_CODE_RANGE)
{
/* We need to know what the base type is, in order to do the
appropriate check below. Otherwise, if this is a subrange
index_type = TYPE_TARGET_TYPE (index_type);
}
- switch (TYPE_CODE (index_type))
+ /* Don't print the lower bound if it's the default one. */
+ switch (index_type->code ())
{
case TYPE_CODE_BOOL:
+ case TYPE_CODE_CHAR:
if (low_bound == 0)
return 0;
break;
case TYPE_CODE_ENUM:
- if (low_bound == TYPE_FIELD_BITPOS (index_type, 0))
+ if (low_bound == 0)
return 0;
+ low_bound = TYPE_FIELD_ENUMVAL (index_type, low_bound);
break;
case TYPE_CODE_UNDEF:
index_type = NULL;
}
/* Version of val_print_array_elements for GNAT-style packed arrays.
- Prints elements of packed array of type TYPE at bit offset
- BITOFFSET from VALADDR on STREAM. Formats according to OPTIONS and
- separates with commas. RECURSE is the recursion (nesting) level.
- TYPE must have been decoded (as by ada_coerce_to_simple_array). */
+ Prints elements of packed array of type TYPE from VALADDR on
+ STREAM. Formats according to OPTIONS and separates with commas.
+ RECURSE is the recursion (nesting) level. TYPE must have been
+ decoded (as by ada_coerce_to_simple_array). */
static void
val_print_packed_array_elements (struct type *type, const gdb_byte *valaddr,
- int offset,
- int bitoffset, struct ui_file *stream,
+ int offset, struct ui_file *stream,
int recurse,
- const 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);
{
if (get_discrete_bounds (index_type, &low, &high) < 0)
len = 1;
+ else if (low > 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! */
+ len = 0;
+ }
else
len = high - low + 1;
}
+ if (index_type->code () == TYPE_CODE_RANGE)
+ index_type = TYPE_TARGET_TYPE (index_type);
+
i = 0;
annotate_array_section_begin (i, elttype);
if (i != 0)
{
- if (options->prettyprint_arrays)
+ if (options->prettyformat_arrays)
{
fprintf_filtered (stream, ",\n");
print_spaces_filtered (2 + 2 * recurse, stream);
fprintf_filtered (stream, ", ");
}
}
+ else if (options->prettyformat_arrays)
+ {
+ fprintf_filtered (stream, "\n");
+ print_spaces_filtered (2 + 2 * recurse, stream);
+ }
wrap_here (n_spaces (2 + 2 * recurse));
maybe_print_array_index (index_type, i + low, stream, options);
(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),
- value_embedded_offset (v0), 0, stream,
- recurse + 1, v0, &opts, current_language);
+ common_val_print (v0, stream, recurse + 1, &opts, current_language);
annotate_elt_rep (i - i0);
- fprintf_filtered (stream, _(" <repeats %u times>"), i - i0);
+ fprintf_filtered (stream, _(" %p[<repeats %u times>%p]"),
+ metadata_style.style ().ptr (), i - i0, nullptr);
annotate_elt_rep_end ();
}
{
if (j > i0)
{
- if (options->prettyprint_arrays)
+ if (options->prettyformat_arrays)
{
fprintf_filtered (stream, ",\n");
print_spaces_filtered (2 + 2 * recurse, stream);
maybe_print_array_index (index_type, j + low,
stream, options);
}
- val_print (elttype, value_contents_for_printing (v0),
- value_embedded_offset (v0), 0, stream,
- recurse + 1, v0, &opts, current_language);
+ common_val_print (v0, stream, recurse + 1, &opts,
+ current_language);
annotate_elt ();
}
}
value_free_to_mark (mark);
}
-static struct type *
-printable_val_type (struct type *type, const gdb_byte *valaddr)
-{
- 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
string whose delimiter is QUOTER. TYPE_LEN is the length in bytes
of the character. */
type_len, byte_order);
}
-/* Wrapper around memcpy to make it legal argument to ui_file_put. */
-static void
-ui_memcpy (void *dest, const char *buffer, long len)
-{
- memcpy (dest, buffer, (size_t) len);
- ((char *) dest)[len] = '\0';
-}
-
/* Print a floating-point value of type TYPE, pointed to in GDB by
VALADDR, on STREAM. Use Ada formatting conventions: there must be
a decimal point, and at least one digit before and after the
- point. We use GNAT format for NaNs and infinities. */
+ point. We use the GNAT format for NaNs and infinities. */
+
static void
ada_print_floating (const gdb_byte *valaddr, struct type *type,
struct ui_file *stream)
{
- char buffer[64];
- char *s, *result;
- int len;
- 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);
- ui_file_put (tmp_stream, ui_memcpy, buffer);
- do_cleanups (cleanups);
+ print_floating (valaddr, type, &tmp_stream);
- result = buffer;
- len = strlen (result);
+ 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);
- return;
+ fprintf_filtered (stream, "%.*s.0%s", (int) pos, s.c_str (), &s[pos]);
}
- fprintf_filtered (stream, "%s", result);
+ else
+ fprintf_filtered (stream, "%s", &s[skip_count]);
}
void
type = ada_check_typedef (type);
- switch (TYPE_CODE (type))
+ switch (type->code ())
{
case TYPE_CODE_ENUM:
- len = TYPE_NFIELDS (type);
+ len = type->num_fields ();
for (i = 0; i < len; i++)
{
- if (TYPE_FIELD_BITPOS (type, i) == val)
+ if (TYPE_FIELD_ENUMVAL (type, i) == val)
{
break;
}
}
if (i < len)
{
- 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);
}
else
{
default:
error (_("Invalid type code in symbol table."));
}
- gdb_flush (stream);
}
/* Print the character string STRING, printing at most LENGTH characters.
unsigned int length, int force_ellipses, int type_len,
const struct value_print_options *options)
{
- enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (elttype));
+ enum bfd_endian byte_order = type_byte_order (elttype);
unsigned int i;
unsigned int things_printed = 0;
int in_quotes = 0;
{
if (in_quotes)
{
- if (options->inspect_it)
- fputs_filtered ("\\\", ", stream);
- else
- fputs_filtered ("\", ", stream);
+ fputs_filtered ("\", ", stream);
in_quotes = 0;
}
fputs_filtered ("'", stream);
ada_emit_char (char_at (string, i, type_len, byte_order),
elttype, stream, '\'', type_len);
fputs_filtered ("'", stream);
- fprintf_filtered (stream, _(" <repeats %u times>"), reps);
+ fprintf_filtered (stream, _(" %p[<repeats %u times>%p]"),
+ metadata_style.style ().ptr (), reps, nullptr);
i = rep1 - 1;
things_printed += options->repeat_count_threshold;
need_comma = 1;
{
if (!in_quotes)
{
- if (options->inspect_it)
- fputs_filtered ("\\\"", stream);
- else
- fputs_filtered ("\"", stream);
+ fputs_filtered ("\"", stream);
in_quotes = 1;
}
ada_emit_char (char_at (string, i, type_len, byte_order),
/* Terminate the quotes if necessary. */
if (in_quotes)
- {
- if (options->inspect_it)
- fputs_filtered ("\\\"", stream);
- else
- fputs_filtered ("\"", stream);
- }
+ fputs_filtered ("\"", stream);
if (force_ellipses || i < length)
fputs_filtered ("...", stream);
options);
}
+static int
+print_variant_part (struct value *value, int field_num,
+ struct value *outer_value,
+ struct ui_file *stream, int recurse,
+ const struct value_print_options *options,
+ int comma_needed,
+ const struct language_defn *language)
+{
+ struct type *type = value_type (value);
+ struct type *var_type = TYPE_FIELD_TYPE (type, field_num);
+ int which = ada_which_variant_applies (var_type, outer_value);
+
+ if (which < 0)
+ return 0;
+
+ struct value *variant_field = value_field (value, field_num);
+ struct value *active_component = value_field (variant_field, which);
+ return print_field_values (active_component, outer_value, stream, recurse,
+ options, comma_needed, language);
+}
+
+/* Print out fields of VALUE.
+
+ STREAM, RECURSE, and OPTIONS have the same meanings as in
+ ada_print_value and ada_value_print.
+
+ OUTER_VALUE gives the enclosing record (used to get discriminant
+ values when printing variant parts).
+
+ COMMA_NEEDED is 1 if fields have been printed at the current recursion
+ level, so that a comma is needed before any field printed by this
+ call.
+
+ Returns 1 if COMMA_NEEDED or any fields were printed. */
+
+static int
+print_field_values (struct value *value, struct value *outer_value,
+ struct ui_file *stream, int recurse,
+ const struct value_print_options *options,
+ int comma_needed,
+ const struct language_defn *language)
+{
+ int i, len;
+
+ struct type *type = value_type (value);
+ len = type->num_fields ();
+
+ for (i = 0; i < len; i += 1)
+ {
+ if (ada_is_ignored_field (type, i))
+ continue;
+
+ if (ada_is_wrapper_field (type, i))
+ {
+ struct value *field_val = ada_value_primitive_field (value, 0,
+ i, type);
+ comma_needed =
+ print_field_values (field_val, field_val,
+ stream, recurse, options,
+ comma_needed, language);
+ continue;
+ }
+ else if (ada_is_variant_part (type, i))
+ {
+ comma_needed =
+ print_variant_part (value, i, outer_value, stream, recurse,
+ options, comma_needed, language);
+ continue;
+ }
+
+ if (comma_needed)
+ fprintf_filtered (stream, ", ");
+ comma_needed = 1;
+
+ if (options->prettyformat)
+ {
+ fprintf_filtered (stream, "\n");
+ print_spaces_filtered (2 + 2 * recurse, stream);
+ }
+ else
+ {
+ wrap_here (n_spaces (2 + 2 * recurse));
+ }
+
+ annotate_field_begin (TYPE_FIELD_TYPE (type, i));
+ fprintf_filtered (stream, "%.*s",
+ ada_name_prefix_len (TYPE_FIELD_NAME (type, i)),
+ TYPE_FIELD_NAME (type, i));
+ annotate_field_name_end ();
+ fputs_filtered (" => ", stream);
+ annotate_field_value ();
+
+ if (TYPE_FIELD_PACKED (type, i))
+ {
+ /* Bitfields require special handling, especially due to byte
+ order problems. */
+ if (HAVE_CPLUS_STRUCT (type) && TYPE_FIELD_IGNORE (type, i))
+ {
+ fputs_styled (_("<optimized out or zero length>"),
+ metadata_style.style (), stream);
+ }
+ 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;
+
+ adjust_type_signedness (TYPE_FIELD_TYPE (type, i));
+ v = ada_value_primitive_packed_val
+ (value, nullptr,
+ bit_pos / HOST_CHAR_BIT,
+ bit_pos % HOST_CHAR_BIT,
+ bit_size, TYPE_FIELD_TYPE (type, i));
+ opts = *options;
+ opts.deref_ref = 0;
+ common_val_print (v, stream, recurse + 1, &opts, language);
+ }
+ }
+ else
+ {
+ struct value_print_options opts = *options;
+
+ opts.deref_ref = 0;
+
+ struct value *v = value_field (value, i);
+ common_val_print (v, stream, recurse + 1, &opts, language);
+ }
+ annotate_field_end ();
+ }
-/* See 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 val_print. */
+ return comma_needed;
+}
+
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_ARRAY of characters. */
-int
-ada_val_print (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)
+static void
+ada_val_print_string (struct type *type, const gdb_byte *valaddr,
+ int offset_aligned,
+ struct ui_file *stream, int recurse,
+ const struct value_print_options *options)
{
- volatile struct gdb_exception except;
- int result = 0;
+ enum bfd_endian byte_order = type_byte_order (type);
+ struct type *elttype = TYPE_TARGET_TYPE (type);
+ unsigned int eltlen;
+ unsigned int len;
+
+ /* We know that ELTTYPE cannot possibly be null, because we assume
+ that we're called only when TYPE is a string-like type.
+ Similarly, the size of ELTTYPE should also be non-null, since
+ it's a character-like type. */
+ gdb_assert (elttype != NULL);
+ gdb_assert (TYPE_LENGTH (elttype) != 0);
- /* XXX: this catches QUIT/ctrl-c as well. Isn't that busted? */
- TRY_CATCH (except, RETURN_MASK_ALL)
+ eltlen = TYPE_LENGTH (elttype);
+ len = TYPE_LENGTH (type) / eltlen;
+
+ /* If requested, look for the first null char and only print
+ elements up to it. */
+ if (options->stop_print_at_null)
{
- result = ada_val_print_1 (type, valaddr, embedded_offset, address,
- stream, recurse, val, options);
+ int temp_len;
+
+ /* Look for a NULL char. */
+ for (temp_len = 0;
+ (temp_len < len
+ && temp_len < options->print_max
+ && char_at (valaddr + offset_aligned,
+ temp_len, eltlen, byte_order) != 0);
+ temp_len += 1);
+ len = temp_len;
}
- if (except.reason < 0)
- result = 0;
+ printstr (stream, elttype, valaddr + offset_aligned, len, 0,
+ eltlen, options);
+}
+
+/* Implement Ada val_print-ing for GNAT arrays (Eg. fat pointers,
+ thin pointers, etc). */
+
+static void
+ada_val_print_gnat_array (struct value *val,
+ struct ui_file *stream, int recurse,
+ const struct value_print_options *options)
+{
+ scoped_value_mark free_values;
+
+ struct type *type = ada_check_typedef (value_type (val));
- return result;
+ /* If this is a reference, coerce it now. This helps taking care
+ of the case where ADDRESS is meaningless because original_value
+ was not an lval. */
+ val = coerce_ref (val);
+ if (type->code () == TYPE_CODE_TYPEDEF) /* array access type. */
+ val = ada_coerce_to_simple_array_ptr (val);
+ else
+ val = ada_coerce_to_simple_array (val);
+ if (val == NULL)
+ {
+ gdb_assert (type->code () == TYPE_CODE_TYPEDEF);
+ fprintf_filtered (stream, "0x0");
+ }
+ else
+ common_val_print (val, stream, recurse, options,
+ language_def (language_ada));
}
-/* Assuming TYPE is a simple array, print the value of this array located
- at VALADDR + OFFSET. 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. */
+/* Implement Ada value_print'ing for the case where TYPE is a
+ TYPE_CODE_PTR. */
-static int
-ada_val_print_array (struct type *type, const gdb_byte *valaddr,
- int offset, CORE_ADDR address,
+static void
+ada_value_print_ptr (struct value *val,
struct ui_file *stream, int recurse,
- const struct value *val,
const struct value_print_options *options)
{
- int result = 0;
+ common_val_print (val, stream, recurse, options, language_def (language_c));
- /* For an array of chars, print with string syntax. */
- if (ada_is_string_type (type)
- && (options->format == 0 || options->format == 's'))
+ struct type *type = ada_check_typedef (value_type (val));
+ if (ada_is_tag_type (type))
{
- enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
- struct type *elttype = TYPE_TARGET_TYPE (type);
- unsigned int eltlen;
- unsigned int len;
-
- /* We know that ELTTYPE cannot possibly be null, because we found
- that TYPE is a string-like type. Similarly, the size of ELTTYPE
- should also be non-null, since it's a character-like type. */
- gdb_assert (elttype != NULL);
- gdb_assert (TYPE_LENGTH (elttype) != 0);
-
- eltlen = TYPE_LENGTH (elttype);
- len = TYPE_LENGTH (type) / eltlen;
-
- if (options->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 (options->stop_print_at_null)
- {
- int temp_len;
-
- /* Look for a NULL char. */
- for (temp_len = 0;
- (temp_len < len
- && temp_len < options->print_max
- && char_at (valaddr + offset,
- temp_len, eltlen, byte_order) != 0);
- temp_len += 1);
- len = temp_len;
- }
-
- printstr (stream, elttype, valaddr + offset, len, 0, eltlen, options);
- result = len;
+ const char *name = ada_tag_name (val);
+
+ if (name != NULL)
+ fprintf_filtered (stream, " (%s)", name);
+ }
+}
+
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_INT or TYPE_CODE_RANGE. */
+
+static void
+ada_value_print_num (struct value *val, struct ui_file *stream, int recurse,
+ const struct value_print_options *options)
+{
+ struct type *type = ada_check_typedef (value_type (val));
+ const gdb_byte *valaddr = value_contents_for_printing (val);
+
+ if (ada_is_gnat_encoded_fixed_point_type (type))
+ {
+ struct value *scale = ada_scaling_factor (type);
+ val = value_cast (value_type (scale), val);
+ val = value_binop (val, scale, BINOP_MUL);
+
+ const char *fmt = TYPE_LENGTH (type) < 4 ? "%.11g" : "%.17g";
+ std::string str
+ = target_float_to_string (value_contents (val), value_type (val), fmt);
+ fputs_filtered (str.c_str (), stream);
+ return;
+ }
+ else if (type->code () == TYPE_CODE_RANGE
+ && (TYPE_TARGET_TYPE (type)->code () == TYPE_CODE_ENUM
+ || TYPE_TARGET_TYPE (type)->code () == TYPE_CODE_BOOL
+ || TYPE_TARGET_TYPE (type)->code () == TYPE_CODE_CHAR))
+ {
+ /* For enum-valued ranges, we want to recurse, because we'll end
+ up printing the constant's name rather than its numeric
+ value. Character and fixed-point types are also printed
+ differently, so recuse for those as well. */
+ struct type *target_type = TYPE_TARGET_TYPE (type);
+ val = value_cast (target_type, val);
+ common_val_print (val, stream, recurse + 1, options,
+ language_def (language_ada));
+ return;
}
else
{
- fprintf_filtered (stream, "(");
- print_optional_low_bound (stream, type, options);
- if (TYPE_FIELD_BITSIZE (type, 0) > 0)
- val_print_packed_array_elements (type, valaddr, offset,
- 0, stream, recurse, val, options);
+ int format = (options->format ? options->format
+ : options->output_format);
+
+ if (format)
+ {
+ struct value_print_options opts = *options;
+
+ opts.format = format;
+ value_print_scalar_formatted (val, &opts, 0, stream);
+ }
+ else if (ada_is_system_address_type (type))
+ {
+ /* 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. */
+
+ struct gdbarch *gdbarch = get_type_arch (type);
+ struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
+ CORE_ADDR addr = extract_typed_address (valaddr, ptr_type);
+
+ fprintf_filtered (stream, "(");
+ type_print (type, "", stream, -1);
+ fprintf_filtered (stream, ") ");
+ fputs_filtered (paddress (gdbarch, addr), stream);
+ }
else
- val_print_array_elements (type, valaddr, offset, address,
- stream, recurse, val, options, 0);
- fprintf_filtered (stream, ")");
- }
+ {
+ value_print_scalar_formatted (val, options, 0, stream);
+ if (ada_is_character_type (type))
+ {
+ LONGEST c;
- return result;
+ fputs_filtered (" ", stream);
+ c = unpack_long (type, valaddr);
+ ada_printchar (c, type, stream);
+ }
+ }
+ return;
+ }
}
-/* See the comment on ada_val_print. This function differs in that it
- does not catch evaluation errors (leaving that to ada_val_print). */
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_ENUM. */
-static int
-ada_val_print_1 (struct type *type, const gdb_byte *valaddr,
- int offset, CORE_ADDR address,
- struct ui_file *stream, int recurse,
- const struct value *original_value,
- const struct value_print_options *options)
+static void
+ada_val_print_enum (struct value *value, struct ui_file *stream, int recurse,
+ const struct value_print_options *options)
{
- unsigned int len;
int i;
- struct type *elttype;
+ unsigned int len;
LONGEST val;
- int offset_aligned;
- type = ada_check_typedef (type);
+ if (options->format)
+ {
+ value_print_scalar_formatted (value, options, 0, stream);
+ return;
+ }
- if (ada_is_array_descriptor_type (type)
- || ada_is_constrained_packed_array_type (type))
+ struct type *type = ada_check_typedef (value_type (value));
+ const gdb_byte *valaddr = value_contents_for_printing (value);
+ int offset_aligned = ada_aligned_value_addr (type, valaddr) - valaddr;
+
+ len = type->num_fields ();
+ val = unpack_long (type, valaddr + offset_aligned);
+ for (i = 0; i < len; i++)
{
- int retn;
- struct value *mark = value_mark ();
- struct value *val;
+ QUIT;
+ if (val == TYPE_FIELD_ENUMVAL (type, i))
+ break;
+ }
- val = value_from_contents_and_address (type, valaddr + offset, address);
- if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) /* array access type. */
- val = ada_coerce_to_simple_array_ptr (val);
- else
- val = ada_coerce_to_simple_array (val);
- if (val == NULL)
- {
- gdb_assert (TYPE_CODE (type) == TYPE_CODE_TYPEDEF);
- fprintf_filtered (stream, "0x0");
- retn = 0;
- }
+ if (i < len)
+ {
+ const char *name = ada_enum_name (TYPE_FIELD_NAME (type, i));
+
+ if (name[0] == '\'')
+ fprintf_filtered (stream, "%ld %ps", (long) val,
+ styled_string (variable_name_style.style (),
+ name));
else
- retn = ada_val_print_1 (value_type (val),
- value_contents_for_printing (val),
- value_embedded_offset (val),
- value_address (val), stream, recurse,
- val, options);
- value_free_to_mark (mark);
- return retn;
+ fputs_styled (name, variable_name_style.style (), stream);
}
+ else
+ print_longest (stream, 'd', 0, val);
+}
- offset_aligned = offset + ada_aligned_value_addr (type, valaddr) - valaddr;
- type = printable_val_type (type, valaddr + offset_aligned);
+/* Implement Ada val_print'ing for the case where the type is
+ TYPE_CODE_STRUCT or TYPE_CODE_UNION. */
- switch (TYPE_CODE (type))
+static void
+ada_val_print_struct_union (struct value *value,
+ struct ui_file *stream,
+ int recurse,
+ const struct value_print_options *options)
+{
+ if (ada_is_bogus_array_descriptor (value_type (value)))
{
- default:
- return c_val_print (type, valaddr, offset, address, stream,
- recurse, original_value, options);
+ fprintf_filtered (stream, "(...?)");
+ return;
+ }
- case TYPE_CODE_PTR:
- {
- int ret = c_val_print (type, valaddr, offset, address,
- stream, recurse, original_value, options);
-
- if (ada_is_tag_type (type))
- {
- struct value *val =
- value_from_contents_and_address (type,
- valaddr + offset_aligned,
- address + offset_aligned);
- const char *name = ada_tag_name (val);
-
- if (name != NULL)
- fprintf_filtered (stream, " (%s)", name);
- return 0;
- }
- return ret;
- }
+ fprintf_filtered (stream, "(");
- case TYPE_CODE_INT:
- case TYPE_CODE_RANGE:
- if (ada_is_fixed_point_type (type))
- {
- LONGEST v = unpack_long (type, valaddr + offset_aligned);
- int len = TYPE_LENGTH (type);
+ if (print_field_values (value, value, stream, recurse, options,
+ 0, language_def (language_ada)) != 0
+ && options->prettyformat)
+ {
+ fprintf_filtered (stream, "\n");
+ print_spaces_filtered (2 * recurse, stream);
+ }
- fprintf_filtered (stream, len < 4 ? "%.11g" : "%.17g",
- (double) ada_fixed_to_float (type, v));
- return 0;
- }
- else if (TYPE_CODE (type) == TYPE_CODE_RANGE)
- {
- struct type *target_type = TYPE_TARGET_TYPE (type);
+ fprintf_filtered (stream, ")");
+}
- if (TYPE_LENGTH (type) != TYPE_LENGTH (target_type))
- {
- /* Obscure case of range type that has different length from
- its base type. Perform a conversion, or we will get a
- nonsense value. Actually, we could use the same
- code regardless of lengths; I'm just avoiding a cast. */
- struct value *v1
- = value_from_contents_and_address (type, valaddr + offset, 0);
- struct value *v = value_cast (target_type, v1);
-
- return ada_val_print_1 (target_type,
- value_contents_for_printing (v),
- value_embedded_offset (v), 0,
- stream, recurse + 1, v, options);
- }
- else
- return ada_val_print_1 (TYPE_TARGET_TYPE (type),
- valaddr, offset,
- address, stream, recurse,
- original_value, options);
- }
- else
- {
- int format = (options->format ? options->format
- : options->output_format);
+/* Implement Ada value_print'ing for the case where TYPE is a
+ TYPE_CODE_ARRAY. */
- if (format)
- {
- struct value_print_options opts = *options;
+static void
+ada_value_print_array (struct value *val, struct ui_file *stream, int recurse,
+ const struct value_print_options *options)
+{
+ struct type *type = ada_check_typedef (value_type (val));
- opts.format = format;
- val_print_scalar_formatted (type, valaddr, offset_aligned,
- original_value, &opts, 0, stream);
- }
- else if (ada_is_system_address_type (type))
- {
- /* 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. */
-
- struct gdbarch *gdbarch = get_type_arch (type);
- struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
- CORE_ADDR addr = extract_typed_address (valaddr + offset_aligned,
- ptr_type);
-
- fprintf_filtered (stream, "(");
- type_print (type, "", stream, -1);
- fprintf_filtered (stream, ") ");
- fputs_filtered (paddress (gdbarch, addr), stream);
- }
- else
- {
- val_print_type_code_int (type, valaddr + offset_aligned, stream);
- if (ada_is_character_type (type))
- {
- LONGEST c;
+ /* For an array of characters, print with string syntax. */
+ if (ada_is_string_type (type)
+ && (options->format == 0 || options->format == 's'))
+ {
+ const gdb_byte *valaddr = value_contents_for_printing (val);
+ int offset_aligned = ada_aligned_value_addr (type, valaddr) - valaddr;
- fputs_filtered (" ", stream);
- c = unpack_long (type, valaddr + offset_aligned);
- ada_printchar (c, type, stream);
- }
- }
- return 0;
- }
+ ada_val_print_string (type, valaddr, offset_aligned, stream, recurse,
+ options);
+ return;
+ }
- case TYPE_CODE_ENUM:
- if (options->format)
- {
- val_print_scalar_formatted (type, valaddr, offset_aligned,
- original_value, options, 0, stream);
- break;
- }
- len = TYPE_NFIELDS (type);
- val = unpack_long (type, valaddr + offset_aligned);
- for (i = 0; i < len; i++)
- {
- QUIT;
- if (val == TYPE_FIELD_BITPOS (type, i))
- {
- break;
- }
- }
- if (i < len)
- {
- const char *name = ada_enum_name (TYPE_FIELD_NAME (type, i));
+ fprintf_filtered (stream, "(");
+ print_optional_low_bound (stream, type, options);
+ if (TYPE_FIELD_BITSIZE (type, 0) > 0)
+ {
+ const gdb_byte *valaddr = value_contents_for_printing (val);
+ int offset_aligned = ada_aligned_value_addr (type, valaddr) - valaddr;
+ val_print_packed_array_elements (type, valaddr, offset_aligned,
+ stream, recurse, options);
+ }
+ else
+ value_print_array_elements (val, stream, recurse, options, 0);
+ fprintf_filtered (stream, ")");
+}
- if (name[0] == '\'')
- fprintf_filtered (stream, "%ld %s", (long) val, name);
- else
- fputs_filtered (name, stream);
- }
- else
- {
- print_longest (stream, 'd', 0, val);
- }
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_REF. */
+
+static void
+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,
+ struct value *original_value,
+ const struct value_print_options *options)
+{
+ /* 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. */
+ struct type *elttype = check_typedef (TYPE_TARGET_TYPE (type));
+ struct value *deref_val;
+ CORE_ADDR deref_val_int;
+
+ if (elttype->code () == TYPE_CODE_UNDEF)
+ {
+ fputs_styled ("<ref to undefined type>", metadata_style.style (),
+ stream);
+ return;
+ }
+
+ deref_val = coerce_ref_if_computed (original_value);
+ if (deref_val)
+ {
+ if (ada_is_tagged_type (value_type (deref_val), 1))
+ deref_val = ada_tag_value_at_base_address (deref_val);
+
+ common_val_print (deref_val, stream, recurse + 1, options,
+ language_def (language_ada));
+ return;
+ }
+
+ deref_val_int = unpack_pointer (type, valaddr + offset_aligned);
+ if (deref_val_int == 0)
+ {
+ fputs_filtered ("(null)", stream);
+ return;
+ }
+
+ deref_val
+ = ada_value_ind (value_from_pointer (lookup_pointer_type (elttype),
+ deref_val_int));
+ 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);
+
+ common_val_print (deref_val, stream, recurse + 1,
+ options, language_def (language_ada));
+}
+
+/* See the comment on ada_value_print. This function differs in that
+ it does not catch evaluation errors (leaving that to
+ ada_value_print). */
+
+static void
+ada_value_print_1 (struct value *val, struct ui_file *stream, int recurse,
+ const struct value_print_options *options)
+{
+ struct type *type = ada_check_typedef (value_type (val));
+
+ if (ada_is_array_descriptor_type (type)
+ || (ada_is_constrained_packed_array_type (type)
+ && type->code () != TYPE_CODE_PTR))
+ {
+ ada_val_print_gnat_array (val, stream, recurse, options);
+ return;
+ }
+
+ val = ada_to_fixed_value (val);
+ type = value_type (val);
+ struct type *saved_type = type;
+
+ const gdb_byte *valaddr = value_contents_for_printing (val);
+ CORE_ADDR address = value_address (val);
+ gdb::array_view<const gdb_byte> view
+ = gdb::make_array_view (valaddr, TYPE_LENGTH (type));
+ type = ada_check_typedef (resolve_dynamic_type (type, view, address));
+ if (type != saved_type)
+ {
+ val = value_copy (val);
+ deprecated_set_value_type (val, type);
+ }
+
+ switch (type->code ())
+ {
+ default:
+ common_val_print (val, stream, recurse, options,
+ language_def (language_c));
break;
- case TYPE_CODE_FLAGS:
- if (options->format)
- val_print_scalar_formatted (type, valaddr, offset_aligned,
- original_value, options, 0, stream);
- else
- val_print_type_code_flags (type, valaddr + offset_aligned, stream);
+ case TYPE_CODE_PTR:
+ ada_value_print_ptr (val, stream, recurse, options);
+ break;
+
+ case TYPE_CODE_INT:
+ case TYPE_CODE_RANGE:
+ ada_value_print_num (val, stream, recurse, options);
+ break;
+
+ case TYPE_CODE_ENUM:
+ ada_val_print_enum (val, stream, recurse, options);
break;
case TYPE_CODE_FLT:
if (options->format)
- return c_val_print (type, valaddr, offset, address, stream,
- recurse, original_value, options);
- else
- ada_print_floating (valaddr + offset, type, stream);
+ {
+ common_val_print (val, stream, recurse, options,
+ language_def (language_c));
+ break;
+ }
+
+ ada_print_floating (valaddr, type, stream);
break;
case TYPE_CODE_UNION:
case TYPE_CODE_STRUCT:
- if (ada_is_bogus_array_descriptor (type))
- {
- fprintf_filtered (stream, "(...?)");
- return 0;
- }
- else
- {
- print_record (type, valaddr, offset_aligned,
- stream, recurse, original_value, options);
- return 0;
- }
+ ada_val_print_struct_union (val, stream, recurse, options);
+ break;
case TYPE_CODE_ARRAY:
- return ada_val_print_array (type, valaddr, offset_aligned,
- address, stream, recurse, original_value,
- options);
+ ada_value_print_array (val, stream, recurse, options);
+ return;
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));
-
- if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
- {
- CORE_ADDR deref_val_int
- = unpack_pointer (type, valaddr + offset_aligned);
-
- if (deref_val_int != 0)
- {
- struct value *deref_val =
- ada_value_ind (value_from_pointer
- (lookup_pointer_type (elttype),
- deref_val_int));
-
- 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, current_language);
- }
- else
- fputs_filtered ("(null)", stream);
- }
- else
- fputs_filtered ("???", stream);
-
+ ada_val_print_ref (type, valaddr, 0, 0,
+ address, stream, recurse, val,
+ options);
break;
}
- gdb_flush (stream);
- return 0;
}
-static int
-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,
- const struct value_print_options *options,
- int comma_needed,
- struct type *outer_type, int outer_offset)
-{
- struct type *var_type = TYPE_FIELD_TYPE (type, field_num);
- int which = ada_which_variant_applies (var_type, outer_type,
- valaddr + outer_offset);
+/* See ada-lang.h. */
- if (which < 0)
- return 0;
- else
- return print_field_values
- (TYPE_FIELD_TYPE (var_type, which),
- valaddr,
- offset + TYPE_FIELD_BITPOS (type, field_num) / HOST_CHAR_BIT
- + TYPE_FIELD_BITPOS (var_type, which) / HOST_CHAR_BIT,
- stream, recurse, val, options,
- comma_needed, outer_type, outer_offset);
+void
+ada_value_print_inner (struct value *val, struct ui_file *stream,
+ int recurse,
+ const struct value_print_options *options)
+{
+ try
+ {
+ ada_value_print_1 (val, stream, recurse, options);
+ }
+ catch (const gdb_exception_error &except)
+ {
+ fprintf_styled (stream, metadata_style.style (),
+ _("<error reading variable: %s>"),
+ except.what ());
+ }
}
-int
+void
ada_value_print (struct value *val0, struct ui_file *stream,
const struct value_print_options *options)
{
struct value *val = ada_to_fixed_value (val0);
- CORE_ADDR address = value_address (val);
struct type *type = ada_check_typedef (value_type (val));
struct value_print_options opts;
/* If it is a pointer, indicate what it points to. */
- if (TYPE_CODE (type) == TYPE_CODE_PTR)
+ if (type->code () == TYPE_CODE_PTR)
{
/* Hack: don't print (char *) for char strings. Their
type is indicated by the quoted string anyway. */
if (TYPE_LENGTH (TYPE_TARGET_TYPE (type)) != sizeof (char)
- || TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_INT
+ || TYPE_TARGET_TYPE (type)->code () != TYPE_CODE_INT
|| TYPE_UNSIGNED (TYPE_TARGET_TYPE (type)))
{
fprintf_filtered (stream, "(");
/* We do not print the type description unless TYPE is an array
access type (this is encoded by the compiler as a typedef to
a fat pointer - hence the check against TYPE_CODE_TYPEDEF). */
- if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF)
+ if (type->code () == TYPE_CODE_TYPEDEF)
{
fprintf_filtered (stream, "(");
type_print (type, "", stream, -1);
fprintf_filtered (stream, "(");
type_print (type, "", stream, -1);
fprintf_filtered (stream, ") (...?)");
- return 0;
+ return;
}
opts = *options;
opts.deref_ref = 1;
- return (val_print (type, value_contents_for_printing (val),
- value_embedded_offset (val), address,
- stream, 0, val, &opts, current_language));
-}
-
-static void
-print_record (struct type *type, const gdb_byte *valaddr,
- int offset,
- struct ui_file *stream, int recurse,
- const struct value *val,
- const struct value_print_options *options)
-{
- type = ada_check_typedef (type);
-
- fprintf_filtered (stream, "(");
-
- if (print_field_values (type, valaddr, offset,
- stream, recurse, val, options,
- 0, type, offset) != 0 && options->pretty)
- {
- fprintf_filtered (stream, "\n");
- print_spaces_filtered (2 * recurse, stream);
- }
-
- fprintf_filtered (stream, ")");
-}
-
-/* Print out fields of value at VALADDR + OFFSET having structure type TYPE.
-
- TYPE, VALADDR, OFFSET, STREAM, RECURSE, and OPTIONS have the same
- meanings as in ada_print_value and ada_val_print.
-
- OUTER_TYPE and OUTER_OFFSET give type and address of enclosing
- record (used to get discriminant values when printing variant
- parts).
-
- COMMA_NEEDED is 1 if fields have been printed at the current recursion
- level, so that a comma is needed before any field printed by this
- call.
-
- Returns 1 if COMMA_NEEDED or any fields were printed. */
-
-static int
-print_field_values (struct type *type, const gdb_byte *valaddr,
- int offset, struct ui_file *stream, int recurse,
- const struct value *val,
- const struct value_print_options *options,
- int comma_needed,
- struct type *outer_type, int outer_offset)
-{
- int i, len;
-
- len = TYPE_NFIELDS (type);
-
- for (i = 0; i < len; i += 1)
- {
- if (ada_is_ignored_field (type, i))
- continue;
-
- if (ada_is_wrapper_field (type, i))
- {
- comma_needed =
- print_field_values (TYPE_FIELD_TYPE (type, i),
- valaddr,
- (offset
- + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT),
- stream, recurse, val, options,
- comma_needed, type, offset);
- continue;
- }
- else if (ada_is_variant_part (type, i))
- {
- comma_needed =
- print_variant_part (type, i, valaddr,
- offset, stream, recurse, val,
- options, comma_needed,
- outer_type, outer_offset);
- continue;
- }
-
- if (comma_needed)
- fprintf_filtered (stream, ", ");
- comma_needed = 1;
-
- if (options->pretty)
- {
- fprintf_filtered (stream, "\n");
- print_spaces_filtered (2 + 2 * recurse, stream);
- }
- else
- {
- wrap_here (n_spaces (2 + 2 * recurse));
- }
- if (options->inspect_it)
- {
- if (TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_PTR)
- fputs_filtered ("\"( ptr \"", stream);
- else
- fputs_filtered ("\"( nodef \"", stream);
- fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
- language_cplus, DMGL_NO_OPTS);
- fputs_filtered ("\" \"", stream);
- fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
- language_cplus, DMGL_NO_OPTS);
- fputs_filtered ("\") \"", stream);
- }
- else
- {
- annotate_field_begin (TYPE_FIELD_TYPE (type, i));
- fprintf_filtered (stream, "%.*s",
- ada_name_prefix_len (TYPE_FIELD_NAME (type, i)),
- TYPE_FIELD_NAME (type, i));
- annotate_field_name_end ();
- fputs_filtered (" => ", stream);
- annotate_field_value ();
- }
-
- 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))
- {
- fputs_filtered (_("<optimized out or zero length>"), stream);
- }
- else
- {
- int bit_pos = TYPE_FIELD_BITPOS (type, i);
- int bit_size = TYPE_FIELD_BITSIZE (type, i);
- struct value_print_options opts;
-
- adjust_type_signedness (TYPE_FIELD_TYPE (type, i));
- v = ada_value_primitive_packed_val
- (NULL, valaddr,
- offset + bit_pos / HOST_CHAR_BIT,
- bit_pos % HOST_CHAR_BIT,
- bit_size, TYPE_FIELD_TYPE (type, i));
- 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, current_language);
- }
- }
- else
- {
- struct value_print_options opts = *options;
-
- opts.deref_ref = 0;
- ada_val_print (TYPE_FIELD_TYPE (type, i),
- valaddr,
- (offset
- + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT),
- 0, stream, recurse + 1, val, &opts);
- }
- annotate_field_end ();
- }
-
- return comma_needed;
+ common_val_print (val, stream, 0, &opts, current_language);
}
projects / deliverable / binutils-gdb.git / blobdiff