/* Support for printing C values for GDB, the GNU debugger.
- Copyright (C) 1986, 1988-1989, 1991-2001, 2003, 2005-2012 Free
- Software Foundation, Inc.
+ Copyright (C) 1986-2013 Free Software Foundation, Inc.
This file is part of GDB.
#include "target.h"
\f
-/* Print function pointer with inferior address ADDRESS onto stdio
- stream STREAM. */
-
-static void
-print_function_pointer_address (struct gdbarch *gdbarch,
- CORE_ADDR address,
- struct ui_file *stream,
- int addressprint)
-{
- CORE_ADDR func_addr
- = gdbarch_convert_from_func_ptr_addr (gdbarch, address,
- ¤t_target);
-
- /* If the function pointer is represented by a description, print
- the address of the description. */
- if (addressprint && func_addr != address)
- {
- fputs_filtered ("@", stream);
- fputs_filtered (paddress (gdbarch, address), stream);
- fputs_filtered (": ", stream);
- }
- print_address_demangle (gdbarch, func_addr, stream, demangle);
-}
-
-
/* A helper for c_textual_element_type. This checks the name of the
typedef. This is bogus but it isn't apparent that the compiler
provides us the help we may need. */
return 0;
}
+/* Decorations for C. */
+
+static const struct generic_val_print_decorations c_decorations =
+{
+ "",
+ " + ",
+ " * I",
+ "true",
+ "false",
+ "void"
+};
+
/* 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. */
+ function; they are identical. */
-int
+void
c_val_print (struct type *type, const gdb_byte *valaddr,
int embedded_offset, CORE_ADDR address,
struct ui_file *stream, int recurse,
struct type *elttype, *unresolved_elttype;
struct type *unresolved_type = type;
unsigned eltlen;
- LONGEST val;
CORE_ADDR addr;
CHECK_TYPEDEF (type);
TARGET_CHAR_BIT * embedded_offset,
TARGET_CHAR_BIT * TYPE_LENGTH (type)))
{
+ int force_ellipses = 0;
+
/* If requested, look for the first null char and only
print elements up to it. */
if (options->stop_print_at_null)
eltlen, byte_order) != 0);
++temp_len)
;
+
+ /* Force LA_PRINT_STRING to print ellipses if
+ we've printed the maximum characters and
+ the next character is not \000. */
+ if (temp_len == options->print_max && temp_len < len)
+ {
+ ULONGEST val
+ = extract_unsigned_integer (valaddr + embedded_offset
+ + temp_len * eltlen,
+ eltlen, byte_order);
+ if (val != 0)
+ force_ellipses = 1;
+ }
+
len = temp_len;
}
LA_PRINT_STRING (stream, unresolved_elttype,
valaddr + embedded_offset, len,
- NULL, 0, options);
+ NULL, force_ellipses, options);
i = len;
}
else
addr = address + embedded_offset;
goto print_unpacked_pointer;
- case TYPE_CODE_MEMBERPTR:
- if (options->format)
- {
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, options, 0, stream);
- break;
- }
- cp_print_class_member (valaddr + embedded_offset, type, stream, "&");
- break;
-
case TYPE_CODE_METHODPTR:
cplus_print_method_ptr (valaddr + embedded_offset, type, stream);
break;
CORE_ADDR addr
= extract_typed_address (valaddr + embedded_offset, type);
- print_function_pointer_address (gdbarch, addr, stream,
- options->addressprint);
+ print_function_pointer_address (options, gdbarch, addr, stream);
break;
}
unresolved_elttype = TYPE_TARGET_TYPE (type);
elttype = check_typedef (unresolved_elttype);
{
+ int want_space;
+
addr = unpack_pointer (type, valaddr + embedded_offset);
print_unpacked_pointer:
+ want_space = 0;
+
if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
{
/* Try to print what function it points to. */
- print_function_pointer_address (gdbarch, addr, stream,
- options->addressprint);
- /* Return value is irrelevant except for string
- pointers. */
- return (0);
+ print_function_pointer_address (options, gdbarch, addr, stream);
+ return;
}
- if (options->addressprint)
- fputs_filtered (paddress (gdbarch, addr), stream);
+ if (options->symbol_print)
+ want_space = print_address_demangle (options, gdbarch, addr,
+ stream, demangle);
+ else if (options->addressprint)
+ {
+ fputs_filtered (paddress (gdbarch, addr), stream);
+ want_space = 1;
+ }
/* For a pointer to a textual type, also print the string
pointed to, unless pointer is null. */
options->format)
&& addr != 0)
{
+ if (want_space)
+ fputs_filtered (" ", stream);
i = val_print_string (unresolved_elttype, NULL,
addr, -1,
stream, options);
CORE_ADDR vt_address = unpack_pointer (type,
valaddr
+ embedded_offset);
-
struct minimal_symbol *msymbol =
lookup_minimal_symbol_by_pc (vt_address);
- if ((msymbol != NULL)
+
+ /* If 'symbol_print' is set, we did the work above. */
+ if (!options->symbol_print
+ && (msymbol != NULL)
&& (vt_address == SYMBOL_VALUE_ADDRESS (msymbol)))
{
+ if (want_space)
+ fputs_filtered (" ", stream);
fputs_filtered (" <", stream);
fputs_filtered (SYMBOL_PRINT_NAME (msymbol), stream);
fputs_filtered (">", stream);
+ want_space = 1;
}
+
if (vt_address && options->vtblprint)
{
struct value *vt_val;
struct symbol *wsym = (struct symbol *) NULL;
struct type *wtype;
struct block *block = (struct block *) NULL;
- int is_this_fld;
+ struct field_of_this_result is_this_fld;
+
+ if (want_space)
+ fputs_filtered (" ", stream);
if (msymbol != NULL)
wsym = lookup_symbol (SYMBOL_LINKAGE_NAME (msymbol),
}
}
}
-
- /* Return number of characters printed, including the
- terminating '\0' if we reached the end. val_print_string
- takes care including the terminating '\0' if
- necessary. */
- return i;
- }
- break;
-
- case TYPE_CODE_REF:
- elttype = check_typedef (TYPE_TARGET_TYPE (type));
- if (options->addressprint)
- {
- CORE_ADDR addr
- = extract_typed_address (valaddr + embedded_offset, type);
-
- fprintf_filtered (stream, "@");
- fputs_filtered (paddress (gdbarch, addr), stream);
- if (options->deref_ref)
- fputs_filtered (": ", stream);
- }
- /* De-reference the reference. */
- if (options->deref_ref)
- {
- if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
- {
- 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);
- }
- else
- fputs_filtered ("???", stream);
+ return;
}
break;
CORE_ADDR addr
= extract_typed_address (valaddr + offset, field_type);
- print_function_pointer_address (gdbarch, addr, stream,
- options->addressprint);
+ print_function_pointer_address (options, gdbarch, addr, stream);
}
else
cp_print_value_fields_rtti (type, valaddr,
NULL, 0);
break;
- case TYPE_CODE_ENUM:
- if (options->format)
- {
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, options, 0, stream);
- break;
- }
- len = TYPE_NFIELDS (type);
- val = unpack_long (type, valaddr + embedded_offset);
- for (i = 0; i < len; i++)
- {
- QUIT;
- if (val == TYPE_FIELD_BITPOS (type, i))
- {
- break;
- }
- }
- if (i < len)
- {
- fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
- }
- else
- {
- print_longest (stream, 'd', 0, val);
- }
- break;
-
- case TYPE_CODE_FLAGS:
- if (options->format)
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, options, 0, stream);
- else
- val_print_type_code_flags (type, valaddr + embedded_offset,
- stream);
- break;
-
- case TYPE_CODE_FUNC:
- case TYPE_CODE_METHOD:
- if (options->format)
- {
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, options, 0, stream);
- break;
- }
- /* FIXME, we should consider, at least for ANSI C language,
- eliminating the distinction made between FUNCs and POINTERs
- to FUNCs. */
- fprintf_filtered (stream, "{");
- type_print (type, "", stream, -1);
- fprintf_filtered (stream, "} ");
- /* Try to print what function it points to, and its address. */
- print_address_demangle (gdbarch, address, stream, demangle);
- break;
-
- case TYPE_CODE_BOOL:
- if (options->format || options->output_format)
- {
- struct value_print_options opts = *options;
- opts.format = (options->format ? options->format
- : options->output_format);
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, &opts, 0, stream);
- }
- else
- {
- val = unpack_long (type, valaddr + embedded_offset);
- if (val == 0)
- fputs_filtered ("false", stream);
- else if (val == 1)
- fputs_filtered ("true", stream);
- else
- print_longest (stream, 'd', 0, val);
- }
- break;
-
- case TYPE_CODE_RANGE:
- /* FIXME: create_range_type does not set the unsigned bit in a
- range type (I think it probably should copy it from the
- target type), so we won't print values which are too large to
- fit in a signed integer correctly. */
- /* FIXME: Doesn't handle ranges of enums correctly. (Can't just
- print with the target type, though, because the size of our
- type and the target type might differ). */
- /* FALLTHROUGH */
-
case TYPE_CODE_INT:
if (options->format || options->output_format)
{
}
break;
- case TYPE_CODE_CHAR:
- if (options->format || options->output_format)
- {
- struct value_print_options opts = *options;
- opts.format = (options->format ? options->format
- : options->output_format);
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, &opts, 0, stream);
- }
- else
+ case TYPE_CODE_MEMBERPTR:
+ if (!options->format)
{
- val = unpack_long (type, valaddr + embedded_offset);
- if (TYPE_UNSIGNED (type))
- fprintf_filtered (stream, "%u", (unsigned int) val);
- else
- fprintf_filtered (stream, "%d", (int) val);
- fputs_filtered (" ", stream);
- LA_PRINT_CHAR (val, unresolved_type, stream);
+ cp_print_class_member (valaddr + embedded_offset, type, stream, "&");
+ break;
}
- break;
+ /* FALLTHROUGH */
+ case TYPE_CODE_REF:
+ case TYPE_CODE_ENUM:
+ case TYPE_CODE_FLAGS:
+ case TYPE_CODE_FUNC:
+ case TYPE_CODE_METHOD:
+ case TYPE_CODE_BOOL:
+ case TYPE_CODE_RANGE:
case TYPE_CODE_FLT:
- if (options->format)
- {
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, options, 0, stream);
- }
- else
- {
- print_floating (valaddr + embedded_offset, type, stream);
- }
- break;
-
case TYPE_CODE_DECFLOAT:
- if (options->format)
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, options, 0, stream);
- else
- print_decimal_floating (valaddr + embedded_offset,
- type, stream);
- break;
-
case TYPE_CODE_VOID:
- fprintf_filtered (stream, "void");
- break;
-
case TYPE_CODE_ERROR:
- fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (type));
- break;
-
case TYPE_CODE_UNDEF:
- /* This happens (without TYPE_FLAG_STUB set) on systems which
- don't use dbx xrefs (NO_DBX_XREFS in gcc) if a file has a
- "struct foo *bar" and no complete type for struct foo in that
- file. */
- fprintf_filtered (stream, _("<incomplete type>"));
- break;
-
case TYPE_CODE_COMPLEX:
- if (options->format)
- 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)
- 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)),
- TYPE_TARGET_TYPE (type),
- stream);
- fprintf_filtered (stream, " * I");
- break;
-
+ case TYPE_CODE_CHAR:
default:
- error (_("Invalid C/C++ type code %d in symbol table."),
- TYPE_CODE (type));
+ generic_val_print (type, valaddr, embedded_offset, address,
+ stream, recurse, original_value, options,
+ &c_decorations);
+ break;
}
gdb_flush (stream);
- return (0);
}
\f
-int
+void
c_value_print (struct value *val, struct ui_file *stream,
const struct value_print_options *options)
{
if (value_entirely_available (val))
{
- real_type = value_rtti_target_type (val, &full, &top, &using_enc);
+ real_type = value_rtti_indirect_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);
- }
+ type = real_type;
+
/* Need to adjust pointer value. */
val = value_from_pointer (type, value_as_address (val) - top);
full ? "" : _(" [incomplete object]"));
/* Print out object: enclosing type is same as real_type if
full. */
- return val_print (value_enclosing_type (val),
- value_contents_for_printing (val), 0,
- value_address (val), stream, 0,
- val, &opts, current_language);
+ val_print (value_enclosing_type (val),
+ value_contents_for_printing (val), 0,
+ value_address (val), stream, 0,
+ val, &opts, current_language);
+ return;
/* Note: When we look up RTTI entries, we don't get any
information on const or volatile attributes. */
}
/* No RTTI information, so let's do our best. */
fprintf_filtered (stream, "(%s ?) ",
TYPE_NAME (value_enclosing_type (val)));
- return val_print (value_enclosing_type (val),
- value_contents_for_printing (val), 0,
- value_address (val), stream, 0,
- val, &opts, current_language);
+ val_print (value_enclosing_type (val),
+ value_contents_for_printing (val), 0,
+ value_address (val), stream, 0,
+ val, &opts, current_language);
+ return;
}
/* Otherwise, we end up at the return outside this "if". */
}
- return val_print (val_type, value_contents_for_printing (val),
- value_embedded_offset (val),
- value_address (val),
- stream, 0,
- val, &opts, current_language);
+ val_print (val_type, value_contents_for_printing (val),
+ value_embedded_offset (val),
+ value_address (val),
+ stream, 0,
+ val, &opts, current_language);
}
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