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);
}
static CORE_ADDR
amd64_windows_adjust_args_passed_by_pointer (struct value **args,
int nargs, CORE_ADDR sp)
{
int i;
for (i = 0; i < nargs; i++)
if (amd64_windows_passed_by_pointer (value_type (args[i])))
{
struct type *type = value_type (args[i]);
const gdb_byte *valbuf = value_contents (args[i]);
const int len = TYPE_LENGTH (type);
/* Store a copy of that argument on the stack, aligned to
a 16 bytes boundary, and then use the copy's address as
the argument. */
sp -= len;
sp &= ~0xf;
write_memory (sp, valbuf, len);
args[i]
= value_addr (value_from_contents_and_address (type, valbuf, sp));
}
return sp;
}
int
ada_value_print (struct value *val0, struct ui_file *stream, int format,
enum val_prettyprint pretty)
{
char *valaddr = VALUE_CONTENTS (val0);
CORE_ADDR address = VALUE_ADDRESS (val0) + VALUE_OFFSET (val0);
struct type *type =
ada_to_fixed_type (VALUE_TYPE (val0), valaddr, address, NULL);
struct value *val =
value_from_contents_and_address (type, valaddr, address);
/* 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))
{
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 0;
}
if (TYPE_CODE (type) == TYPE_CODE_ARRAY
&& TYPE_LENGTH (TYPE_TARGET_TYPE (type)) == 0
&& TYPE_CODE (TYPE_INDEX_TYPE (type)) == TYPE_CODE_RANGE)
{
/* This is an array of zero-length elements, that is an array
of null records. This array needs to be printed by hand,
as the standard routine to print arrays relies on the size of
the array elements to be nonzero. This is because it computes
the number of elements in the array by dividing the array size
by the array element size. */
fprintf_filtered (stream, "(%d .. %d => ())",
TYPE_LOW_BOUND (TYPE_INDEX_TYPE (type)),
TYPE_HIGH_BOUND (TYPE_INDEX_TYPE (type)));
return 0;
}
return (val_print (type, VALUE_CONTENTS (val), 0, address,
stream, format, 1, 0, pretty));
}
static struct value *
get_call_return_value (struct call_return_meta_info *ri)
{
struct value *retval = NULL;
int stack_temporaries = thread_stack_temporaries_enabled_p (inferior_ptid);
if (TYPE_CODE (ri->value_type) == TYPE_CODE_VOID)
retval = allocate_value (ri->value_type);
else if (ri->struct_return_p)
{
if (stack_temporaries)
{
retval = value_from_contents_and_address (ri->value_type, NULL,
ri->struct_addr);
push_thread_stack_temporary (inferior_ptid, retval);
}
else
{
retval = allocate_value (ri->value_type);
read_value_memory (retval, 0, 1, ri->struct_addr,
value_contents_raw (retval),
TYPE_LENGTH (ri->value_type));
}
}
else
{
retval = allocate_value (ri->value_type);
gdbarch_return_value (ri->gdbarch, ri->function, ri->value_type,
get_current_regcache (),
value_contents_raw (retval), NULL);
if (stack_temporaries && class_or_union_p (ri->value_type))
{
/* Values of class type returned in registers are copied onto
the stack and their lval_type set to lval_memory. This is
required because further evaluation of the expression
could potentially invoke methods on the return value
requiring GDB to evaluate the "this" pointer. To evaluate
the this pointer, GDB needs the memory address of the
value. */
value_force_lval (retval, ri->struct_addr);
push_thread_stack_temporary (inferior_ptid, retval);
}
}
gdb_assert (retval != NULL);
return retval;
}
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);
}
}
enum ext_lang_rc
gdbscm_apply_val_pretty_printer (const struct extension_language_defn *extlang,
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,
const struct language_defn *language)
{
struct gdbarch *gdbarch = get_type_arch (type);
SCM exception = SCM_BOOL_F;
SCM printer = SCM_BOOL_F;
SCM val_obj = SCM_BOOL_F;
struct value *value;
enum display_hint hint;
struct cleanup *cleanups;
enum ext_lang_rc result = EXT_LANG_RC_NOP;
enum string_repr_result print_result;
/* No pretty-printer support for unavailable values. */
if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type)))
return EXT_LANG_RC_NOP;
if (!gdb_scheme_initialized)
return EXT_LANG_RC_NOP;
cleanups = make_cleanup (null_cleanup, NULL);
/* Instantiate the printer. */
if (valaddr)
valaddr += embedded_offset;
value = value_from_contents_and_address (type, valaddr,
address + embedded_offset);
set_value_component_location (value, val);
/* set_value_component_location resets the address, so we may
need to set it again. */
if (VALUE_LVAL (value) != lval_internalvar
&& VALUE_LVAL (value) != lval_internalvar_component
&& VALUE_LVAL (value) != lval_computed)
set_value_address (value, address + embedded_offset);
val_obj = vlscm_scm_from_value (value);
if (gdbscm_is_exception (val_obj))
{
exception = val_obj;
result = EXT_LANG_RC_ERROR;
goto done;
}
printer = ppscm_find_pretty_printer (val_obj);
if (gdbscm_is_exception (printer))
{
exception = printer;
result = EXT_LANG_RC_ERROR;
goto done;
}
if (gdbscm_is_false (printer))
{
result = EXT_LANG_RC_NOP;
goto done;
}
gdb_assert (ppscm_is_pretty_printer_worker (printer));
/* If we are printing a map, we want some special formatting. */
hint = ppscm_get_display_hint_enum (printer);
if (hint == HINT_ERROR)
{
/* Print the error as an exception for consistency. */
SCM hint_scm = ppscm_get_display_hint_scm (printer);
ppscm_print_pp_type_error ("Invalid display hint", hint_scm);
/* Fall through. A bad hint doesn't stop pretty-printing. */
hint = HINT_NONE;
}
/* Print the section. */
print_result = ppscm_print_string_repr (printer, hint, stream, recurse,
options, gdbarch, language);
if (print_result != STRING_REPR_ERROR)
{
ppscm_print_children (printer, hint, stream, recurse, options,
gdbarch, language,
print_result == STRING_REPR_NONE);
}
result = EXT_LANG_RC_OK;
done:
if (gdbscm_is_exception (exception))
ppscm_print_exception_unless_memory_error (exception, stream);
do_cleanups (cleanups);
return result;
}
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))
{
LONGEST v = unpack_long (type, valaddr + offset_aligned);
fprintf_filtered (stream, TYPE_LENGTH (type) < 4 ? "%.11g" : "%.17g",
(double) ada_fixed_to_float (type, v));
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_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;
}
}
static int
ada_val_print_1 (struct type *type, char *valaddr0, int embedded_offset,
CORE_ADDR address, struct ui_file *stream, int format,
int deref_ref, int recurse, enum val_prettyprint pretty)
{
unsigned int len;
int i;
struct type *elttype;
unsigned int eltlen;
LONGEST val;
char *valaddr = valaddr0 + embedded_offset;
CHECK_TYPEDEF (type);
if (ada_is_array_descriptor_type (type) || ada_is_packed_array_type (type))
{
int retn;
struct value *mark = value_mark ();
struct value *val;
val = value_from_contents_and_address (type, valaddr, address);
val = ada_coerce_to_simple_array_ptr (val);
if (val == NULL)
{
fprintf_filtered (stream, "(null)");
retn = 0;
}
else
retn = ada_val_print_1 (VALUE_TYPE (val), VALUE_CONTENTS (val), 0,
VALUE_ADDRESS (val), stream, format,
deref_ref, recurse, pretty);
value_free_to_mark (mark);
return retn;
}
valaddr = ada_aligned_value_addr (type, valaddr);
embedded_offset -= valaddr - valaddr0 - embedded_offset;
type = printable_val_type (type, valaddr);
switch (TYPE_CODE (type))
{
default:
return c_val_print (type, valaddr0, embedded_offset, address, stream,
format, deref_ref, recurse, pretty);
case TYPE_CODE_PTR:
{
int ret = c_val_print (type, valaddr0, embedded_offset, address,
stream, format, deref_ref, recurse, pretty);
if (ada_is_tag_type (type))
{
struct value *val =
value_from_contents_and_address (type, valaddr, address);
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);
int len = TYPE_LENGTH (type);
fprintf_filtered (stream, len < 4 ? "%.11g" : "%.17g",
(double) ada_fixed_to_float (type, v));
return 0;
}
else if (ada_is_vax_floating_type (type))
{
struct value *val =
value_from_contents_and_address (type, valaddr, address);
struct value *func = ada_vax_float_print_function (type);
if (func != 0)
{
static struct type *parray_of_char = NULL;
struct value *printable_val;
if (parray_of_char == NULL)
parray_of_char =
make_pointer_type
(create_array_type
(NULL, builtin_type_char,
create_range_type (NULL, builtin_type_int, 0, 32)), NULL);
printable_val =
value_ind (value_cast (parray_of_char,
call_function_by_hand (func, 1,
&val)));
fprintf_filtered (stream, "%s", VALUE_CONTENTS (printable_val));
return 0;
}
/* No special printing function. Do as best we can. */
}
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 *v = value_cast (target_type,
value_from_contents_and_address
(type, valaddr, 0));
return ada_val_print_1 (target_type, VALUE_CONTENTS (v), 0, 0,
stream, format, 0, recurse + 1, pretty);
}
else
return ada_val_print_1 (TYPE_TARGET_TYPE (type),
valaddr0, embedded_offset,
address, stream, format, deref_ref,
recurse, pretty);
}
else
{
format = format ? format : output_format;
if (format)
{
print_scalar_formatted (valaddr, type, format, 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. */
fprintf_filtered (stream, "(");
type_print (type, "", stream, -1);
fprintf_filtered (stream, ") ");
print_address_numeric
(extract_typed_address (valaddr, builtin_type_void_data_ptr),
1, stream);
}
else
{
val_print_type_code_int (type, valaddr, stream);
if (ada_is_character_type (type))
{
fputs_filtered (" ", stream);
ada_printchar ((unsigned char) unpack_long (type, valaddr),
stream);
}
}
return 0;
}
case TYPE_CODE_ENUM:
if (format)
{
print_scalar_formatted (valaddr, type, format, 0, stream);
break;
}
len = TYPE_NFIELDS (type);
val = unpack_long (type, valaddr);
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_FLT:
if (format)
return c_val_print (type, valaddr0, embedded_offset, address, stream,
format, deref_ref, recurse, pretty);
else
ada_print_floating (valaddr0 + embedded_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, stream, format, recurse, pretty);
return 0;
}
case TYPE_CODE_ARRAY:
elttype = TYPE_TARGET_TYPE (type);
if (elttype == NULL)
eltlen = 0;
else
eltlen = TYPE_LENGTH (elttype);
/* FIXME: This doesn't deal with non-empty arrays of
0-length items (not a typical case!) */
if (eltlen == 0)
len = 0;
else
len = TYPE_LENGTH (type) / eltlen;
/* For an array of chars, print with string syntax. */
if (ada_is_string_type (type) && (format == 0 || format == 's'))
{
if (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 (stop_print_at_null)
{
int temp_len;
/* Look for a NULL char. */
for (temp_len = 0;
temp_len < len && temp_len < print_max
&& char_at (valaddr, temp_len, eltlen) != 0;
temp_len += 1);
len = temp_len;
}
printstr (stream, valaddr, len, 0, eltlen);
}
else
{
len = 0;
fprintf_filtered (stream, "(");
print_optional_low_bound (stream, type);
if (TYPE_FIELD_BITSIZE (type, 0) > 0)
val_print_packed_array_elements (type, valaddr, 0, stream,
format, recurse, pretty);
else
val_print_array_elements (type, valaddr, address, stream,
format, deref_ref, recurse,
pretty, 0);
fprintf_filtered (stream, ")");
}
gdb_flush (stream);
return len;
case TYPE_CODE_REF:
elttype = check_typedef (TYPE_TARGET_TYPE (type));
/* De-reference the reference */
if (deref_ref)
{
if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
{
LONGEST deref_val_int = (LONGEST)
unpack_pointer (lookup_pointer_type (builtin_type_void),
valaddr);
if (deref_val_int != 0)
{
struct value *deref_val =
ada_value_ind (value_from_longest
(lookup_pointer_type (elttype),
deref_val_int));
val_print (VALUE_TYPE (deref_val),
VALUE_CONTENTS (deref_val), 0,
VALUE_ADDRESS (deref_val), stream, format,
deref_ref, recurse + 1, pretty);
}
else
fputs_filtered ("(null)", stream);
}
else
fputs_filtered ("???", stream);
}
break;
}
gdb_flush (stream);
return 0;
}
enum ext_lang_rc
gdbpy_apply_val_pretty_printer (const struct extension_language_defn *extlang,
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,
const struct language_defn *language)
{
struct gdbarch *gdbarch = get_type_arch (type);
PyObject *printer = NULL;
PyObject *val_obj = NULL;
struct value *value;
char *hint = NULL;
struct cleanup *cleanups;
enum ext_lang_rc result = EXT_LANG_RC_NOP;
enum string_repr_result print_result;
/* No pretty-printer support for unavailable values. */
if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type)))
return EXT_LANG_RC_NOP;
if (!gdb_python_initialized)
return EXT_LANG_RC_NOP;
cleanups = ensure_python_env (gdbarch, language);
/* Instantiate the printer. */
if (valaddr)
valaddr += embedded_offset;
value = value_from_contents_and_address (type, valaddr,
address + embedded_offset);
set_value_component_location (value, val);
/* set_value_component_location resets the address, so we may
need to set it again. */
if (VALUE_LVAL (value) != lval_internalvar
&& VALUE_LVAL (value) != lval_internalvar_component
&& VALUE_LVAL (value) != lval_computed)
set_value_address (value, address + embedded_offset);
val_obj = value_to_value_object (value);
if (! val_obj)
{
result = EXT_LANG_RC_ERROR;
goto done;
}
/* Find the constructor. */
printer = find_pretty_printer (val_obj);
Py_DECREF (val_obj);
if (printer == NULL)
{
result = EXT_LANG_RC_ERROR;
goto done;
}
make_cleanup_py_decref (printer);
if (printer == Py_None)
{
result = EXT_LANG_RC_NOP;
goto done;
}
/* If we are printing a map, we want some special formatting. */
hint = gdbpy_get_display_hint (printer);
make_cleanup (free_current_contents, &hint);
/* Print the section */
print_result = print_string_repr (printer, hint, stream, recurse,
options, language, gdbarch);
if (print_result != string_repr_error)
print_children (printer, hint, stream, recurse, options, language,
print_result == string_repr_none);
result = EXT_LANG_RC_OK;
done:
if (PyErr_Occurred ())
print_stack_unless_memory_error (stream);
do_cleanups (cleanups);
return result;
}
