/* Support for printing C values for GDB, the GNU debugger.
- Copyright (C) 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
- 1998, 1999, 2000, 2001, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 1986, 1988-1989, 1991-2001, 2003, 2005-2012 Free
+ Software Foundation, Inc.
This file is part of GDB.
return 0;
}
-
-/* Print data of type TYPE located at VALADDR (within GDB), which came
- from the inferior at address ADDRESS, onto stdio stream STREAM
- according to OPTIONS. The data at VALADDR is in target byte order.
-
- If the data are a string pointer, returns the number of string
- characters printed. */
+/* 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
c_val_print (struct type *type, const gdb_byte *valaddr,
long as the entire array is valid. */
if (c_textual_element_type (unresolved_elttype,
options->format)
+ && value_bytes_available (original_value, embedded_offset,
+ TYPE_LENGTH (type))
&& value_bits_valid (original_value,
TARGET_CHAR_BIT * embedded_offset,
TARGET_CHAR_BIT * TYPE_LENGTH (type)))
{
i = 0;
}
- val_print_array_elements (type, valaddr + embedded_offset,
- address + embedded_offset,
- stream, recurse,
- original_value, options, i);
+ val_print_array_elements (type, valaddr, embedded_offset,
+ address, stream,
+ recurse, original_value, options, i);
fprintf_filtered (stream, "}");
}
break;
}
/* Array of unspecified length: treat like pointer to first
elt. */
- addr = address;
+ addr = address + embedded_offset;
goto print_unpacked_pointer;
case TYPE_CODE_MEMBERPTR:
if (options->format)
{
- print_scalar_formatted (valaddr + embedded_offset, type,
- options, 0, stream);
+ val_print_scalar_formatted (type, valaddr, embedded_offset,
+ original_value, options, 0, stream);
break;
}
cp_print_class_member (valaddr + embedded_offset, type, stream, "&");
case TYPE_CODE_PTR:
if (options->format && options->format != 's')
{
- print_scalar_formatted (valaddr + embedded_offset, type,
- options, 0, stream);
+ val_print_scalar_formatted (type, valaddr, embedded_offset,
+ original_value, options, 0, stream);
break;
}
if (options->vtblprint && cp_is_vtbl_ptr_type (type))
{
if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
{
- struct value *deref_val =
- value_at
- (TYPE_TARGET_TYPE (type),
- unpack_pointer (type, valaddr + embedded_offset));
+ struct value *deref_val;
+
+ deref_val = coerce_ref_if_computed (original_value);
+ if (deref_val != NULL)
+ {
+ /* More complicated computed references are not supported. */
+ gdb_assert (embedded_offset == 0);
+ }
+ else
+ deref_val = value_at (TYPE_TARGET_TYPE (type),
+ unpack_pointer (type,
+ (valaddr
+ + embedded_offset)));
common_val_print (deref_val, stream, recurse, options,
current_language);
}
/* Fall through. */
case TYPE_CODE_STRUCT:
- /*FIXME: Abstract this away */
+ /*FIXME: Abstract this away. */
if (options->vtblprint && cp_is_vtbl_ptr_type (type))
{
/* Print the unmangled name if desired. */
case TYPE_CODE_ENUM:
if (options->format)
{
- print_scalar_formatted (valaddr + embedded_offset, type,
- options, 0, stream);
+ val_print_scalar_formatted (type, valaddr, embedded_offset,
+ original_value, options, 0, stream);
break;
}
len = TYPE_NFIELDS (type);
{
fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
}
- else
+ else if (TYPE_FLAG_ENUM (type))
{
- print_longest (stream, 'd', 0, val);
+ int first = 1;
+
+ /* We have a "flag" enum, so we try to decompose it into
+ pieces as appropriate. A flag enum has disjoint
+ constants by definition. */
+ fputs_filtered ("(", stream);
+ for (i = 0; i < len; ++i)
+ {
+ QUIT;
+
+ if ((val & TYPE_FIELD_BITPOS (type, i)) != 0)
+ {
+ if (!first)
+ fputs_filtered (" | ", stream);
+ first = 0;
+
+ val &= ~TYPE_FIELD_BITPOS (type, i);
+ fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
+ }
+ }
+
+ if (first || val != 0)
+ {
+ if (!first)
+ fputs_filtered (" | ", stream);
+ fputs_filtered ("unknown: ", stream);
+ print_longest (stream, 'd', 0, val);
+ }
+
+ fputs_filtered (")", stream);
}
+ else
+ print_longest (stream, 'd', 0, val);
break;
case TYPE_CODE_FLAGS:
if (options->format)
- print_scalar_formatted (valaddr + embedded_offset, type,
- options, 0, stream);
+ val_print_scalar_formatted (type, valaddr, embedded_offset,
+ original_value, options, 0, stream);
else
val_print_type_code_flags (type, valaddr + embedded_offset,
stream);
case TYPE_CODE_METHOD:
if (options->format)
{
- print_scalar_formatted (valaddr + embedded_offset, type,
- options, 0, stream);
+ val_print_scalar_formatted (type, valaddr, embedded_offset,
+ original_value, options, 0, stream);
break;
}
/* FIXME, we should consider, at least for ANSI C language,
struct value_print_options opts = *options;
opts.format = (options->format ? options->format
: options->output_format);
- print_scalar_formatted (valaddr + embedded_offset, type,
- &opts, 0, stream);
+ val_print_scalar_formatted (type, valaddr, embedded_offset,
+ original_value, &opts, 0, stream);
}
else
{
opts.format = (options->format ? options->format
: options->output_format);
- print_scalar_formatted (valaddr + embedded_offset, type,
- &opts, 0, stream);
+ val_print_scalar_formatted (type, valaddr, embedded_offset,
+ original_value, &opts, 0, stream);
}
else
{
if (c_textual_element_type (unresolved_type, options->format))
{
fputs_filtered (" ", stream);
- LA_PRINT_CHAR ((unsigned char) unpack_long (type,
- valaddr
- + embedded_offset),
+ LA_PRINT_CHAR (unpack_long (type, valaddr + embedded_offset),
unresolved_type, stream);
}
}
struct value_print_options opts = *options;
opts.format = (options->format ? options->format
: options->output_format);
- print_scalar_formatted (valaddr + embedded_offset, type,
- &opts, 0, stream);
+ val_print_scalar_formatted (type, valaddr, embedded_offset,
+ original_value, &opts, 0, stream);
}
else
{
else
fprintf_filtered (stream, "%d", (int) val);
fputs_filtered (" ", stream);
- LA_PRINT_CHAR ((unsigned char) val, unresolved_type, stream);
+ LA_PRINT_CHAR (val, unresolved_type, stream);
}
break;
case TYPE_CODE_FLT:
if (options->format)
{
- print_scalar_formatted (valaddr + embedded_offset, type,
- options, 0, stream);
+ val_print_scalar_formatted (type, valaddr, embedded_offset,
+ original_value, options, 0, stream);
}
else
{
case TYPE_CODE_DECFLOAT:
if (options->format)
- print_scalar_formatted (valaddr + embedded_offset, type,
- options, 0, stream);
+ val_print_scalar_formatted (type, valaddr, embedded_offset,
+ original_value, options, 0, stream);
else
print_decimal_floating (valaddr + embedded_offset,
type, stream);
case TYPE_CODE_COMPLEX:
if (options->format)
- print_scalar_formatted (valaddr + embedded_offset,
- TYPE_TARGET_TYPE (type),
- options, 0, stream);
+ val_print_scalar_formatted (TYPE_TARGET_TYPE (type),
+ valaddr, embedded_offset,
+ original_value, options, 0, stream);
else
print_floating (valaddr + embedded_offset,
TYPE_TARGET_TYPE (type),
stream);
fprintf_filtered (stream, " + ");
if (options->format)
- print_scalar_formatted (valaddr + embedded_offset
- + TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
- TYPE_TARGET_TYPE (type),
- options, 0, stream);
+ val_print_scalar_formatted (TYPE_TARGET_TYPE (type),
+ valaddr,
+ embedded_offset
+ + TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
+ original_value,
+ options, 0, stream);
else
print_floating (valaddr + embedded_offset
+ TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
}
/* Pointer to class, check real type of object. */
fprintf_filtered (stream, "(");
- real_type = value_rtti_target_type (val, &full,
- &top, &using_enc);
- if (real_type)
- {
- /* RTTI entry found. */
- if (TYPE_CODE (type) == TYPE_CODE_PTR)
- {
- /* Create a pointer type pointing to the real
- type. */
- type = lookup_pointer_type (real_type);
- }
- else
- {
- /* Create a reference type referencing the real
- type. */
- type = lookup_reference_type (real_type);
- }
- /* JYG: Need to adjust pointer value. */
- /* NOTE: cagney/2005-01-02: THIS IS BOGUS. */
- value_contents_writeable (val)[0] -= top;
-
- /* Note: When we look up RTTI entries, we don't get any
- information on const or volatile attributes. */
- }
+
+ if (value_entirely_available (val))
+ {
+ real_type = value_rtti_target_type (val, &full, &top, &using_enc);
+ if (real_type)
+ {
+ /* RTTI entry found. */
+ if (TYPE_CODE (type) == TYPE_CODE_PTR)
+ {
+ /* Create a pointer type pointing to the real
+ type. */
+ type = lookup_pointer_type (real_type);
+ }
+ else
+ {
+ /* Create a reference type referencing the real
+ type. */
+ type = lookup_reference_type (real_type);
+ }
+ /* Need to adjust pointer value. */
+ val = value_from_pointer (type, value_as_address (val) - top);
+
+ /* Note: When we look up RTTI entries, we don't get
+ any information on const or volatile
+ attributes. */
+ }
+ }
type_print (type, "", stream, -1);
fprintf_filtered (stream, ") ");
val_type = type;
projects / deliverable / binutils-gdb.git / blobdiff