/* Support for printing C++ values for GDB, the GNU debugger.
- Copyright (C) 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
- 2000, 2001, 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 1986-2015 Free Software Foundation, Inc.
This file is part of GDB.
#include "gdbcmd.h"
#include "demangle.h"
#include "annotate.h"
-#include "gdb_string.h"
#include "c-lang.h"
#include "target.h"
#include "cp-abi.h"
#include "valprint.h"
#include "cp-support.h"
#include "language.h"
-#include "python/python.h"
-#include "exceptions.h"
+#include "extension.h"
+#include "typeprint.h"
/* Controls printing of vtbl's. */
static void
/* GCC versions after 2.4.5 use this. */
-const char vtbl_ptr_name[] = "__vtbl_ptr_type";
+EXPORTED_CONST char vtbl_ptr_name[] = "__vtbl_ptr_type";
/* Return truth value for assertion that TYPE is of the type
"pointer to virtual function". */
int
cp_is_vtbl_ptr_type (struct type *type)
{
- char *typename = type_name_no_tag (type);
+ const char *type_name = type_name_no_tag (type);
- return (typename != NULL && !strcmp (typename, vtbl_ptr_name));
+ return (type_name != NULL && !strcmp (type_name, vtbl_ptr_name));
}
/* Return truth value for the assertion that TYPE is of the type
int fields_seen = 0;
static int last_set_recurse = -1;
- CHECK_TYPEDEF (type);
+ type = check_typedef (type);
if (recurse == 0)
{
fprintf_filtered (stream, "<No data fields>");
else
{
- int statmem_obstack_initial_size = 0;
- int stat_array_obstack_initial_size = 0;
-
+ size_t statmem_obstack_initial_size = 0;
+ size_t stat_array_obstack_initial_size = 0;
+ struct type *vptr_basetype = NULL;
+ int vptr_fieldno;
+
if (dont_print_statmem == 0)
{
statmem_obstack_initial_size =
}
}
+ vptr_fieldno = get_vptr_fieldno (type, &vptr_basetype);
for (i = n_baseclasses; i < len; i++)
{
/* If requested, skip printing of static fields. */
fprintf_filtered (stream, ", ");
else if (n_baseclasses > 0)
{
- if (options->pretty)
+ if (options->prettyformat)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 + 2 * recurse, stream);
}
fields_seen = 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);
- if (field_is_static (&TYPE_FIELD (type, i)))
- fputs_filtered ("static ", stream);
- fprintf_symbol_filtered (stream,
- TYPE_FIELD_NAME (type, i),
- current_language->la_language,
- DMGL_PARAMS | DMGL_ANSI);
- fputs_filtered ("\" \"", stream);
- fprintf_symbol_filtered (stream,
- TYPE_FIELD_NAME (type, i),
- current_language->la_language,
- DMGL_PARAMS | DMGL_ANSI);
- fputs_filtered ("\") \"", stream);
- }
- else
- {
- annotate_field_begin (TYPE_FIELD_TYPE (type, i));
-
- if (field_is_static (&TYPE_FIELD (type, i)))
- fputs_filtered ("static ", stream);
- fprintf_symbol_filtered (stream,
- TYPE_FIELD_NAME (type, i),
- current_language->la_language,
- DMGL_PARAMS | DMGL_ANSI);
- annotate_field_name_end ();
- /* Do not print leading '=' in case of anonymous
- unions. */
- if (strcmp (TYPE_FIELD_NAME (type, i), ""))
- fputs_filtered (" = ", stream);
- annotate_field_value ();
- }
+
+ annotate_field_begin (TYPE_FIELD_TYPE (type, i));
+
+ if (field_is_static (&TYPE_FIELD (type, i)))
+ fputs_filtered ("static ", stream);
+ fprintf_symbol_filtered (stream,
+ TYPE_FIELD_NAME (type, i),
+ current_language->la_language,
+ DMGL_PARAMS | DMGL_ANSI);
+ annotate_field_name_end ();
+ /* Do not print leading '=' in case of anonymous
+ unions. */
+ if (strcmp (TYPE_FIELD_NAME (type, i), ""))
+ fputs_filtered (" = ", stream);
+ annotate_field_value ();
if (!field_is_static (&TYPE_FIELD (type, i))
&& TYPE_FIELD_PACKED (type, i))
{
fputs_filtered (_("<synthetic pointer>"), stream);
}
- else if (!value_bits_valid (val,
- TYPE_FIELD_BITPOS (type, i),
- TYPE_FIELD_BITSIZE (type, i)))
- {
- val_print_optimized_out (stream);
- }
else
{
struct value_print_options opts = *options;
}
else if (field_is_static (&TYPE_FIELD (type, i)))
{
- volatile struct gdb_exception ex;
struct value *v = NULL;
- TRY_CATCH (ex, RETURN_MASK_ERROR)
+ TRY
{
v = value_static_field (type, i);
}
- if (ex.reason < 0)
- fprintf_filtered (stream,
- _("<error reading variable: %s>"),
- ex.message);
- else if (v == NULL)
- val_print_optimized_out (stream);
- else
- cp_print_static_field (TYPE_FIELD_TYPE (type, i),
- v, stream, recurse + 1,
- options);
+ CATCH (ex, RETURN_MASK_ERROR)
+ {
+ fprintf_filtered (stream,
+ _("<error reading variable: %s>"),
+ ex.message);
+ }
+ END_CATCH
+
+ cp_print_static_field (TYPE_FIELD_TYPE (type, i),
+ v, stream, recurse + 1,
+ options);
+ }
+ else if (i == vptr_fieldno && type == vptr_basetype)
+ {
+ int i_offset = offset + TYPE_FIELD_BITPOS (type, i) / 8;
+ struct type *i_type = TYPE_FIELD_TYPE (type, i);
+
+ if (valprint_check_validity (stream, i_type, i_offset, val))
+ {
+ CORE_ADDR addr;
+
+ addr = extract_typed_address (valaddr + i_offset, i_type);
+ print_function_pointer_address (options,
+ get_type_arch (type),
+ addr, stream);
+ }
}
else
{
if (dont_print_statmem == 0)
{
- int obstack_final_size =
+ size_t obstack_final_size =
obstack_object_size (&dont_print_statmem_obstack);
if (obstack_final_size > statmem_obstack_initial_size)
/* In effect, a pop of the printed-statics stack. */
void *free_to_ptr =
- obstack_next_free (&dont_print_statmem_obstack) -
+ (char *) obstack_next_free (&dont_print_statmem_obstack) -
(obstack_final_size - statmem_obstack_initial_size);
obstack_free (&dont_print_statmem_obstack,
if (last_set_recurse != recurse)
{
- int obstack_final_size =
+ size_t obstack_final_size =
obstack_object_size (&dont_print_stat_array_obstack);
if (obstack_final_size > stat_array_obstack_initial_size)
{
void *free_to_ptr =
- obstack_next_free (&dont_print_stat_array_obstack)
+ (char *) obstack_next_free (&dont_print_stat_array_obstack)
- (obstack_final_size
- stat_array_obstack_initial_size);
}
}
- if (options->pretty)
+ if (options->prettyformat)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 * recurse, stream);
/* We require all bits to be valid in order to attempt a
conversion. */
- if (value_bits_valid (val, TARGET_CHAR_BIT * offset,
- TARGET_CHAR_BIT * TYPE_LENGTH (type)))
+ if (!value_bits_any_optimized_out (val,
+ TARGET_CHAR_BIT * offset,
+ TARGET_CHAR_BIT * TYPE_LENGTH (type)))
{
struct value *value;
int full, top, using_enc;
/* Ugh, we have to convert back to a value here. */
value = value_from_contents_and_address (type, valaddr + offset,
address + offset);
+ type = value_type (value);
/* We don't actually care about most of the result here -- just
the type. We already have the correct offset, due to how
val_print was initially called. */
for (i = 0; i < n_baseclasses; i++)
{
int boffset = 0;
- int skip;
+ int skip = 0;
struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i));
- char *basename = TYPE_NAME (baseclass);
+ const char *basename = TYPE_NAME (baseclass);
const gdb_byte *base_valaddr = NULL;
const struct value *base_val = NULL;
- volatile struct gdb_exception ex;
if (BASETYPE_VIA_VIRTUAL (type, i))
{
thisoffset = offset;
thistype = real_type;
- TRY_CATCH (ex, RETURN_MASK_ERROR)
+ TRY
{
boffset = baseclass_offset (type, i, valaddr, offset, address, val);
}
- if (ex.reason < 0 && ex.error == NOT_AVAILABLE_ERROR)
- skip = -1;
- else if (ex.reason < 0)
- skip = 1;
- else
- {
- skip = 0;
+ CATCH (ex, RETURN_MASK_ERROR)
+ {
+ if (ex.error == NOT_AVAILABLE_ERROR)
+ skip = -1;
+ else
+ skip = 1;
+ }
+ END_CATCH
+ if (skip == 0)
+ {
if (BASETYPE_VIA_VIRTUAL (type, i))
{
/* The virtual base class pointer might have been
if ((boffset + offset) < 0
|| (boffset + offset) >= TYPE_LENGTH (real_type))
{
- /* FIXME (alloca): unsafe if baseclass is really
- really large. */
- gdb_byte *buf = alloca (TYPE_LENGTH (baseclass));
+ gdb_byte *buf;
+ struct cleanup *back_to;
+
+ buf = (gdb_byte *) xmalloc (TYPE_LENGTH (baseclass));
+ back_to = make_cleanup (xfree, buf);
if (target_read_memory (address + boffset, buf,
TYPE_LENGTH (baseclass)) != 0)
base_val = value_from_contents_and_address (baseclass,
buf,
address + boffset);
+ baseclass = value_type (base_val);
thisoffset = 0;
boffset = 0;
thistype = baseclass;
base_valaddr = value_contents_for_printing_const (base_val);
+ do_cleanups (back_to);
}
else
{
}
/* Now do the printing. */
- if (options->pretty)
+ if (options->prettyformat)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 * recurse, stream);
{
int result = 0;
- /* Attempt to run the Python pretty-printers on the
+ /* Attempt to run an extension language pretty-printer on the
baseclass if possible. */
if (!options->raw)
- result = apply_val_pretty_printer (baseclass, base_valaddr,
- thisoffset + boffset,
- value_address (base_val),
- stream, recurse, base_val,
- options, current_language);
+ result
+ = apply_ext_lang_val_pretty_printer (baseclass, base_valaddr,
+ thisoffset + boffset,
+ value_address (base_val),
+ stream, recurse,
+ base_val, options,
+ current_language);
-
-
if (!result)
cp_print_value_fields (baseclass, thistype, base_valaddr,
thisoffset + boffset,
const struct value_print_options *options)
{
struct value_print_options opts;
-
+
+ if (value_entirely_optimized_out (val))
+ {
+ val_print_optimized_out (val, stream);
+ return;
+ }
+
if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
{
CORE_ADDR *first_dont_print;
addr = value_address (val);
obstack_grow (&dont_print_statmem_obstack, (char *) &addr,
sizeof (CORE_ADDR));
- CHECK_TYPEDEF (type);
+ type = check_typedef (type);
cp_print_value_fields (type, value_enclosing_type (val),
value_contents_for_printing (val),
value_embedded_offset (val), addr,
&opts, current_language);
}
-
-/* Find the field in *DOMAIN, or its non-virtual base classes, with
- bit offset OFFSET. Set *DOMAIN to the containing type and *FIELDNO
+/* Find the field in *SELF, or its non-virtual base classes, with
+ bit offset OFFSET. Set *SELF to the containing type and *FIELDNO
to the containing field number. If OFFSET is not exactly at the
- start of some field, set *DOMAIN to NULL. */
+ start of some field, set *SELF to NULL. */
static void
-cp_find_class_member (struct type **domain_p, int *fieldno,
+cp_find_class_member (struct type **self_p, int *fieldno,
LONGEST offset)
{
- struct type *domain;
+ struct type *self;
unsigned int i;
unsigned len;
- *domain_p = check_typedef (*domain_p);
- domain = *domain_p;
- len = TYPE_NFIELDS (domain);
+ *self_p = check_typedef (*self_p);
+ self = *self_p;
+ len = TYPE_NFIELDS (self);
- for (i = TYPE_N_BASECLASSES (domain); i < len; i++)
+ for (i = TYPE_N_BASECLASSES (self); i < len; i++)
{
- LONGEST bitpos = TYPE_FIELD_BITPOS (domain, i);
+ LONGEST bitpos = TYPE_FIELD_BITPOS (self, i);
QUIT;
if (offset == bitpos)
}
}
- for (i = 0; i < TYPE_N_BASECLASSES (domain); i++)
+ for (i = 0; i < TYPE_N_BASECLASSES (self); i++)
{
- LONGEST bitpos = TYPE_FIELD_BITPOS (domain, i);
- LONGEST bitsize = 8 * TYPE_LENGTH (TYPE_FIELD_TYPE (domain, i));
+ LONGEST bitpos = TYPE_FIELD_BITPOS (self, i);
+ LONGEST bitsize = 8 * TYPE_LENGTH (TYPE_FIELD_TYPE (self, i));
if (offset >= bitpos && offset < bitpos + bitsize)
{
- *domain_p = TYPE_FIELD_TYPE (domain, i);
- cp_find_class_member (domain_p, fieldno, offset - bitpos);
+ *self_p = TYPE_FIELD_TYPE (self, i);
+ cp_find_class_member (self_p, fieldno, offset - bitpos);
return;
}
}
- *domain_p = NULL;
+ *self_p = NULL;
}
void
{
enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
- /* VAL is a byte offset into the structure type DOMAIN.
+ /* VAL is a byte offset into the structure type SELF_TYPE.
Find the name of the field for that offset and
print it. */
- struct type *domain = TYPE_DOMAIN_TYPE (type);
+ struct type *self_type = TYPE_SELF_TYPE (type);
LONGEST val;
- unsigned int fieldno;
+ int fieldno;
val = extract_signed_integer (valaddr,
TYPE_LENGTH (type),
return;
}
- cp_find_class_member (&domain, &fieldno, val << 3);
+ cp_find_class_member (&self_type, &fieldno, val << 3);
- if (domain != NULL)
+ if (self_type != NULL)
{
- char *name;
+ const char *name;
fputs_filtered (prefix, stream);
- name = type_name_no_tag (domain);
+ name = type_name_no_tag (self_type);
if (name)
fputs_filtered (name, stream);
else
- c_type_print_base (domain, stream, 0, 0);
+ c_type_print_base (self_type, stream, 0, 0, &type_print_raw_options);
fprintf_filtered (stream, "::");
- fputs_filtered (TYPE_FIELD_NAME (domain, fieldno), stream);
+ fputs_filtered (TYPE_FIELD_NAME (self_type, fieldno), stream);
}
else
fprintf_filtered (stream, "%ld", (long) val);