/* Support for printing Ada values for GDB, the GNU debugger.
- Copyright (C) 1986, 1988-1989, 1991-1994, 1997, 2001-2012 Free
- Software Foundation, Inc.
+ Copyright (C) 1986-2019 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 "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 *);
+#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);
-
-static void adjust_type_signedness (struct type *);
-
-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 *);
+ int, struct type *, int,
+ const struct language_defn *);
\f
/* Make TYPE unsigned if its range of values includes no negatives. */
index_type = TYPE_INDEX_TYPE (type);
- if (TYPE_CODE (index_type) == TYPE_CODE_RANGE)
+ while (TYPE_CODE (index_type) == 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);
}
+ /* 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;
case TYPE_CODE_ENUM:
- if (low_bound == TYPE_FIELD_BITPOS (index_type, 0))
+ if (low_bound == TYPE_FIELD_ENUMVAL (index_type, 0))
return 0;
break;
case TYPE_CODE_UNDEF:
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;
if (i != 0)
{
- if (options->prettyprint_arrays)
+ if (options->prettyformat_arrays)
{
fprintf_filtered (stream, ",\n");
print_spaces_filtered (2 + 2 * recurse, stream);
(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);
{
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),
+ val_print (elttype,
value_embedded_offset (v0), 0, stream,
recurse + 1, v0, &opts, current_language);
annotate_elt ();
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
len = TYPE_NFIELDS (type);
for (i = 0; i < len; i++)
{
- if (TYPE_FIELD_BITPOS (type, i) == val)
+ if (TYPE_FIELD_ENUMVAL (type, i) == val)
{
break;
}
default:
error (_("Invalid type code in symbol table."));
}
- gdb_flush (stream);
}
/* Print the character string STRING, printing at most LENGTH characters.
{
if (in_quotes)
{
- if (options->inspect_it)
- fputs_filtered ("\\\", ", stream);
- else
- fputs_filtered ("\", ", stream);
+ fputs_filtered ("\", ", stream);
in_quotes = 0;
}
fputs_filtered ("'", stream);
{
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);
}
-
-/* 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. */
-
-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)
-{
- volatile struct gdb_exception except;
- int result = 0;
-
- /* XXX: this catches QUIT/ctrl-c as well. Isn't that busted? */
- TRY_CATCH (except, RETURN_MASK_ALL)
- {
- result = ada_val_print_1 (type, valaddr, embedded_offset, address,
- stream, recurse, val, options);
- }
-
- if (except.reason < 0)
- result = 0;
-
- return result;
-}
-
-/* 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. */
-
-static int
-ada_val_print_array (struct type *type, const gdb_byte *valaddr,
- int offset, CORE_ADDR address,
- struct ui_file *stream, int recurse,
- const struct value *val,
- const struct value_print_options *options)
-{
- int result = 0;
-
- /* For an array of chars, print with string syntax. */
- if (ada_is_string_type (type)
- && (options->format == 0 || options->format == 's'))
- {
- 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;
- }
- 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);
- else
- val_print_array_elements (type, valaddr, offset, address,
- stream, recurse, val, options, 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). */
-
-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)
-{
- unsigned int len;
- int i;
- struct type *elttype;
- LONGEST val;
- int offset_aligned;
-
- type = ada_check_typedef (type);
-
- if (ada_is_array_descriptor_type (type)
- || (ada_is_constrained_packed_array_type (type)
- && TYPE_CODE (type) != TYPE_CODE_PTR))
- {
- int retn;
- struct value *mark = value_mark ();
- struct value *val;
-
- val = value_from_contents_and_address (type, valaddr + offset, address);
- /* 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) == 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;
- }
- 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;
- }
-
- offset_aligned = offset + ada_aligned_value_addr (type, valaddr) - valaddr;
- type = printable_val_type (type, valaddr + offset_aligned);
-
- switch (TYPE_CODE (type))
- {
- default:
- return c_val_print (type, valaddr, offset, address, stream,
- recurse, original_value, options);
-
- 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;
- }
-
- 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);
-
- 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);
-
- 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);
-
- if (format)
- {
- struct value_print_options opts = *options;
-
- 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;
-
- fputs_filtered (" ", stream);
- c = unpack_long (type, valaddr + offset_aligned);
- ada_printchar (c, type, stream);
- }
- }
- return 0;
- }
-
- 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));
-
- if (name[0] == '\'')
- fprintf_filtered (stream, "%ld %s", (long) val, name);
- else
- fputs_filtered (name, stream);
- }
- else
- {
- print_longest (stream, 'd', 0, val);
- }
- 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);
- 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);
- 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;
- }
-
- case TYPE_CODE_ARRAY:
- return ada_val_print_array (type, valaddr, offset_aligned,
- address, stream, recurse, original_value,
- options);
-
- 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;
- struct value *deref_val;
-
- deref_val = coerce_ref_if_computed (original_value);
- if (deref_val)
- {
- common_val_print (deref_val, stream, recurse + 1, options,
- current_language);
- break;
- }
-
- 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);
-
- 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,
+ struct value *val,
const struct value_print_options *options,
int comma_needed,
- struct type *outer_type, int outer_offset)
+ struct type *outer_type, int outer_offset,
+ const struct language_defn *language)
{
struct type *var_type = TYPE_FIELD_TYPE (type, field_num);
int which = ada_which_variant_applies (var_type, outer_type,
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 (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)
- {
- /* 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_UNSIGNED (TYPE_TARGET_TYPE (type)))
- {
- fprintf_filtered (stream, "(");
- type_print (type, "", stream, -1);
- fprintf_filtered (stream, ") ");
- }
- }
- else if (ada_is_array_descriptor_type (type))
- {
- /* 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)
- {
- fprintf_filtered (stream, "(");
- type_print (type, "", stream, -1);
- fprintf_filtered (stream, ") ");
- }
- }
- else if (ada_is_bogus_array_descriptor (type))
- {
- fprintf_filtered (stream, "(");
- type_print (type, "", stream, -1);
- fprintf_filtered (stream, ") (...?)");
- return;
- }
-
- opts = *options;
- opts.deref_ref = 1;
- 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, ")");
+ comma_needed, outer_type, outer_offset, language);
}
/* Print out fields of value at VALADDR + OFFSET having structure type TYPE.
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)
+ struct type *outer_type, int outer_offset,
+ const struct language_defn *language)
{
int i, len;
(offset
+ TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT),
stream, recurse, val, options,
- comma_needed, type, offset);
+ comma_needed, type, offset, language);
continue;
}
else if (ada_is_variant_part (type, i))
print_variant_part (type, i, valaddr,
offset, stream, recurse, val,
options, comma_needed,
- outer_type, outer_offset);
+ outer_type, outer_offset, language);
continue;
}
fprintf_filtered (stream, ", ");
comma_needed = 1;
- if (options->pretty)
+ if (options->prettyformat)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 + 2 * recurse, stream);
{
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 ();
- }
+
+ 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))
}
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, current_language);
+ &opts, 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);
+ val_print (TYPE_FIELD_TYPE (type, i),
+ (offset + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT),
+ 0, stream, recurse + 1, val, &opts, language);
}
annotate_field_end ();
}
return comma_needed;
}
+
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_ARRAY of characters. */
+
+static void
+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,
+ struct value *original_value,
+ const struct value_print_options *options)
+{
+ 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 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);
+
+ eltlen = TYPE_LENGTH (elttype);
+ len = TYPE_LENGTH (type) / eltlen;
+
+ if (options->prettyformat_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_aligned,
+ temp_len, eltlen, byte_order) != 0);
+ temp_len += 1);
+ len = temp_len;
+ }
+
+ 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 type *type, const gdb_byte *valaddr,
+ int offset, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ struct value *original_value,
+ const struct value_print_options *options,
+ const struct language_defn *language)
+{
+ struct value *mark = value_mark ();
+ struct value *val;
+
+ val = value_from_contents_and_address (type, valaddr + offset, address);
+ /* 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) == 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");
+ }
+ else
+ val_print (value_type (val),
+ value_embedded_offset (val), value_address (val),
+ stream, recurse, val, options, language);
+ value_free_to_mark (mark);
+}
+
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_PTR. */
+
+static void
+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,
+ struct value *original_value,
+ const struct value_print_options *options,
+ const struct language_defn *language)
+{
+ val_print (type, offset, address, stream, recurse,
+ original_value, options, language_def (language_c));
+
+ 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);
+ }
+}
+
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_INT or TYPE_CODE_RANGE. */
+
+static void
+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,
+ struct value *original_value,
+ const struct value_print_options *options,
+ const struct language_defn *language)
+{
+ if (ada_is_fixed_point_type (type))
+ {
+ 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)
+ {
+ struct type *target_type = TYPE_TARGET_TYPE (type);
+
+ 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);
+
+ val_print (target_type,
+ value_embedded_offset (v), 0, stream,
+ recurse + 1, v, options, language);
+ }
+ else
+ val_print (TYPE_TARGET_TYPE (type), offset,
+ address, stream, recurse, original_value,
+ options, language);
+ return;
+ }
+ else
+ {
+ int format = (options->format ? options->format
+ : options->output_format);
+
+ if (format)
+ {
+ struct value_print_options opts = *options;
+
+ opts.format = format;
+ val_print_scalar_formatted (type, 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_scalar_formatted (type, offset_aligned,
+ original_value, options, 0, stream);
+ if (ada_is_character_type (type))
+ {
+ LONGEST c;
+
+ fputs_filtered (" ", stream);
+ c = unpack_long (type, valaddr + offset_aligned);
+ ada_printchar (c, type, stream);
+ }
+ }
+ return;
+ }
+}
+
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_ENUM. */
+
+static void
+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,
+ struct value *original_value,
+ const struct value_print_options *options,
+ const struct language_defn *language)
+{
+ int i;
+ unsigned int len;
+ LONGEST val;
+
+ if (options->format)
+ {
+ val_print_scalar_formatted (type, offset_aligned,
+ original_value, options, 0, stream);
+ return;
+ }
+
+ len = TYPE_NFIELDS (type);
+ val = unpack_long (type, valaddr + offset_aligned);
+ for (i = 0; i < len; i++)
+ {
+ QUIT;
+ if (val == TYPE_FIELD_ENUMVAL (type, i))
+ break;
+ }
+
+ if (i < len)
+ {
+ const char *name = ada_enum_name (TYPE_FIELD_NAME (type, i));
+
+ 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_FLT. */
+
+static void
+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,
+ struct value *original_value,
+ const struct value_print_options *options,
+ const struct language_defn *language)
+{
+ if (options->format)
+ {
+ val_print (type, offset, address, stream, recurse,
+ original_value, options, language_def (language_c));
+ return;
+ }
+
+ ada_print_floating (valaddr + offset, type, stream);
+}
+
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_STRUCT or TYPE_CODE_UNION. */
+
+static void
+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, struct value *original_value,
+ const struct value_print_options *options,
+ const struct language_defn *language)
+{
+ if (ada_is_bogus_array_descriptor (type))
+ {
+ fprintf_filtered (stream, "(...?)");
+ return;
+ }
+
+ fprintf_filtered (stream, "(");
+
+ if (print_field_values (type, valaddr, offset_aligned,
+ stream, recurse, original_value, options,
+ 0, type, offset_aligned, language) != 0
+ && options->prettyformat)
+ {
+ fprintf_filtered (stream, "\n");
+ print_spaces_filtered (2 * recurse, stream);
+ }
+
+ fprintf_filtered (stream, ")");
+}
+
+/* Implement Ada val_print'ing for the case where TYPE is
+ a TYPE_CODE_ARRAY. */
+
+static void
+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,
+ struct value *original_value,
+ const struct value_print_options *options)
+{
+ /* For an array of characters, print with string syntax. */
+ if (ada_is_string_type (type)
+ && (options->format == 0 || options->format == 's'))
+ {
+ ada_val_print_string (type, valaddr, offset, offset_aligned,
+ address, stream, recurse, original_value,
+ options);
+ return;
+ }
+
+ 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_aligned,
+ 0, stream, recurse,
+ original_value, options);
+ else
+ val_print_array_elements (type, offset_aligned, address,
+ stream, recurse, original_value,
+ options, 0);
+ fprintf_filtered (stream, ")");
+}
+
+/* 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,
+ const struct language_defn *language)
+{
+ /* 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 (TYPE_CODE (elttype) == TYPE_CODE_UNDEF)
+ {
+ fputs_filtered ("<ref to undefined type>", 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);
+ 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);
+
+ val_print (value_type (deref_val),
+ value_embedded_offset (deref_val),
+ value_address (deref_val), stream, recurse + 1,
+ deref_val, options, language);
+}
+
+/* See the comment on ada_val_print. This function differs in that it
+ does not catch evaluation errors (leaving that to ada_val_print). */
+
+static void
+ada_val_print_1 (struct type *type,
+ int offset, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ 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);
+
+ if (ada_is_array_descriptor_type (type)
+ || (ada_is_constrained_packed_array_type (type)
+ && TYPE_CODE (type) != TYPE_CODE_PTR))
+ {
+ ada_val_print_gnat_array (type, valaddr, offset, address,
+ stream, recurse, original_value,
+ options, language);
+ return;
+ }
+
+ 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, offset, address, stream, recurse,
+ original_value, options, language_def (language_c));
+ break;
+
+ case TYPE_CODE_PTR:
+ ada_val_print_ptr (type, valaddr, offset, offset_aligned,
+ address, stream, recurse, original_value,
+ options, language);
+ break;
+
+ case TYPE_CODE_INT:
+ case TYPE_CODE_RANGE:
+ ada_val_print_num (type, valaddr, offset, offset_aligned,
+ address, stream, recurse, original_value,
+ options, language);
+ break;
+
+ case TYPE_CODE_ENUM:
+ ada_val_print_enum (type, valaddr, offset, offset_aligned,
+ address, stream, recurse, original_value,
+ options, language);
+ break;
+
+ case TYPE_CODE_FLT:
+ ada_val_print_flt (type, valaddr, offset, offset_aligned,
+ address, stream, recurse, original_value,
+ options, language);
+ break;
+
+ case TYPE_CODE_UNION:
+ case TYPE_CODE_STRUCT:
+ ada_val_print_struct_union (type, valaddr, offset, offset_aligned,
+ address, stream, recurse,
+ original_value, options, language);
+ break;
+
+ case TYPE_CODE_ARRAY:
+ ada_val_print_array (type, valaddr, offset, offset_aligned,
+ address, stream, recurse, original_value,
+ options);
+ return;
+
+ case TYPE_CODE_REF:
+ ada_val_print_ref (type, valaddr, offset, offset_aligned,
+ address, stream, recurse, original_value,
+ options, language);
+ break;
+ }
+}
+
+/* See val_print for a description of the various parameters of this
+ function; they are identical. */
+
+void
+ada_val_print (struct type *type,
+ int embedded_offset, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ struct value *val,
+ const struct value_print_options *options)
+{
+ try
+ {
+ ada_val_print_1 (type, embedded_offset, address,
+ stream, recurse, val, options,
+ current_language);
+ }
+ catch (const gdb_exception_error &except)
+ {
+ fprintf_filtered (stream, _("<error reading variable: %s>"),
+ except.what ());
+ }
+}
+
+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)
+ {
+ /* 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_UNSIGNED (TYPE_TARGET_TYPE (type)))
+ {
+ fprintf_filtered (stream, "(");
+ type_print (type, "", stream, -1);
+ fprintf_filtered (stream, ") ");
+ }
+ }
+ else if (ada_is_array_descriptor_type (type))
+ {
+ /* 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)
+ {
+ fprintf_filtered (stream, "(");
+ type_print (type, "", stream, -1);
+ fprintf_filtered (stream, ") ");
+ }
+ }
+ else if (ada_is_bogus_array_descriptor (type))
+ {
+ fprintf_filtered (stream, "(");
+ type_print (type, "", stream, -1);
+ fprintf_filtered (stream, ") (...?)");
+ return;
+ }
+
+ opts = *options;
+ opts.deref_ref = 1;
+ val_print (type,
+ value_embedded_offset (val), address,
+ stream, 0, val, &opts, current_language);
+}
projects / thirdparty / binutils-gdb.git / blobdiff