static void
cp_type_print_derivation_info (struct ui_file *stream,
struct type *type,
const struct type_print_options *flags)
{
const char *name;
int i;
for (i = 0; i < TYPE_N_BASECLASSES (type); i++)
{
wrap_here (" ");
fputs_filtered (i == 0 ? ": " : ", ", stream);
fprintf_filtered (stream, "%s%s ",
BASETYPE_VIA_PUBLIC (type, i)
? "public" : (TYPE_FIELD_PROTECTED (type, i)
? "protected" : "private"),
BASETYPE_VIA_VIRTUAL (type, i) ? " virtual" : "");
name = type_name_no_tag (TYPE_BASECLASS (type, i));
if (name)
print_name_maybe_canonical (name, flags, stream);
else
fprintf_filtered (stream, "(null)");
}
if (i > 0)
{
fputs_filtered (" ", stream);
}
}
static void
java_type_print_derivation_info (struct ui_file *stream, struct type *type)
{
char *name;
int i;
int n_bases;
int prev;
n_bases = TYPE_N_BASECLASSES (type);
for (i = 0, prev = 0; i < n_bases; i++)
{
int kind;
kind = BASETYPE_VIA_VIRTUAL (type, i) ? 'I' : 'E';
fputs_filtered (kind == prev ? ", "
: kind == 'I' ? " implements "
: " extends ",
stream);
prev = kind;
name = type_name_no_tag (TYPE_BASECLASS (type, i));
fprintf_filtered (stream, "%s", name ? name : "(null)");
}
if (i > 0)
fputs_filtered (" ", stream);
}
static struct block_symbol
find_symbol_in_baseclass (struct type *parent_type, const char *name,
const struct block *block)
{
char *concatenated_name = NULL;
struct block_symbol sym;
struct cleanup *cleanup;
int i;
sym.symbol = NULL;
sym.block = NULL;
cleanup = make_cleanup (free_current_contents, &concatenated_name);
for (i = 0; i < TYPE_N_BASECLASSES (parent_type); ++i)
{
size_t len;
struct type *base_type = TYPE_BASECLASS (parent_type, i);
const char *base_name = TYPE_BASECLASS_NAME (parent_type, i);
if (base_name == NULL)
continue;
/* Search this particular base class. */
sym = d_lookup_symbol_in_module (base_name, name, block,
VAR_DOMAIN, 0);
if (sym.symbol != NULL)
break;
/* Now search all static file-level symbols. We have to do this for
things like typedefs in the class. First search in this symtab,
what we want is possibly there. */
len = strlen (base_name) + strlen (name) + 2;
concatenated_name = (char *) xrealloc (concatenated_name, len);
xsnprintf (concatenated_name, len, "%s.%s", base_name, name);
sym = lookup_symbol_in_static_block (concatenated_name, block,
VAR_DOMAIN);
if (sym.symbol != NULL)
break;
/* Nope. We now have to search all static blocks in all objfiles,
even if block != NULL, because there's no guarantees as to which
symtab the symbol we want is in. */
sym = lookup_static_symbol (concatenated_name, VAR_DOMAIN);
if (sym.symbol != NULL)
break;
/* If this class has base classes, search them next. */
base_type = check_typedef (base_type);
if (TYPE_N_BASECLASSES (base_type) > 0)
{
sym = find_symbol_in_baseclass (base_type, name, block);
if (sym.symbol != NULL)
break;
}
}
do_cleanups (cleanup);
return sym;
}
static int
gnuv2_baseclass_offset (struct type *type, int index,
const bfd_byte *valaddr, int embedded_offset,
CORE_ADDR address, const struct value *val)
{
struct type *basetype = TYPE_BASECLASS (type, index);
if (BASETYPE_VIA_VIRTUAL (type, index))
{
/* Must hunt for the pointer to this virtual baseclass. */
int i, len = TYPE_NFIELDS (type);
int n_baseclasses = TYPE_N_BASECLASSES (type);
/* First look for the virtual baseclass pointer
in the fields. */
for (i = n_baseclasses; i < len; i++)
{
if (vb_match (type, i, basetype))
{
struct type *field_type;
int field_offset;
int field_length;
CORE_ADDR addr;
field_type = check_typedef (TYPE_FIELD_TYPE (type, i));
field_offset = TYPE_FIELD_BITPOS (type, i) / 8;
field_length = TYPE_LENGTH (field_type);
if (!value_bytes_available (val, embedded_offset + field_offset,
field_length))
throw_error (NOT_AVAILABLE_ERROR,
_("Virtual baseclass pointer is not available"));
addr = unpack_pointer (field_type,
valaddr + embedded_offset + field_offset);
return addr - (LONGEST) address + embedded_offset;
}
}
/* Not in the fields, so try looking through the baseclasses. */
for (i = index + 1; i < n_baseclasses; i++)
{
/* Don't go through baseclass_offset, as that wraps
exceptions, thus, inner exceptions would be wrapped more
than once. */
int boffset =
gnuv2_baseclass_offset (type, i, valaddr,
embedded_offset, address, val);
if (boffset)
return boffset;
}
error (_("Baseclass offset not found"));
}
/* Baseclass is easily computed. */
return TYPE_BASECLASS_BITPOS (type, index) / 8;
}
static void
pascal_type_print_derivation_info (struct ui_file *stream, struct type *type)
{
char *name;
int i;
for (i = 0; i < TYPE_N_BASECLASSES (type); i++)
{
fputs_filtered (i == 0 ? ": " : ", ", stream);
fprintf_filtered (stream, "%s%s ",
BASETYPE_VIA_PUBLIC (type, i) ? "public" : "private",
BASETYPE_VIA_VIRTUAL (type, i) ? " virtual" : "");
name = type_name_no_tag (TYPE_BASECLASS (type, i));
fprintf_filtered (stream, "%s", name ? name : "(null)");
}
if (i > 0)
{
fputs_filtered (" ", stream);
}
}
/* Helper for expression_completer which recursively adds field and
method names from TYPE, a struct or union type, to the array
OUTPUT. This function assumes that OUTPUT is correctly-sized. */
static void
add_struct_fields (struct type *type, int *nextp, char **output,
char *fieldname, int namelen)
{
int i;
int computed_type_name = 0;
char *type_name = NULL;
CHECK_TYPEDEF (type);
for (i = 0; i < TYPE_NFIELDS (type); ++i)
{
if (i < TYPE_N_BASECLASSES (type))
add_struct_fields (TYPE_BASECLASS (type, i), nextp, output,
fieldname, namelen);
else if (TYPE_FIELD_NAME (type, i)
&& ! strncmp (TYPE_FIELD_NAME (type, i), fieldname, namelen))
{
output[*nextp] = xstrdup (TYPE_FIELD_NAME (type, i));
++*nextp;
}
}
for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i)
{
char *name = TYPE_FN_FIELDLIST_NAME (type, i);
if (name && ! strncmp (name, fieldname, namelen))
{
if (!computed_type_name)
{
type_name = type_name_no_tag (type);
computed_type_name = 1;
}
/* Omit constructors from the completion list. */
if (type_name && strcmp (type_name, name))
{
output[*nextp] = xstrdup (name);
++*nextp;
}
}
}
}
int
gnuv2_baseclass_offset (struct type *type, int index,
const bfd_byte *valaddr, CORE_ADDR address)
{
struct type *basetype = TYPE_BASECLASS (type, index);
if (BASETYPE_VIA_VIRTUAL (type, index))
{
/* Must hunt for the pointer to this virtual baseclass. */
int i, len = TYPE_NFIELDS (type);
int n_baseclasses = TYPE_N_BASECLASSES (type);
/* First look for the virtual baseclass pointer
in the fields. */
for (i = n_baseclasses; i < len; i++)
{
if (vb_match (type, i, basetype))
{
CORE_ADDR addr
= unpack_pointer (TYPE_FIELD_TYPE (type, i),
valaddr + (TYPE_FIELD_BITPOS (type, i) / 8));
return addr - (LONGEST) address;
}
}
/* Not in the fields, so try looking through the baseclasses. */
for (i = index + 1; i < n_baseclasses; i++)
{
int boffset =
baseclass_offset (type, i, valaddr, address);
if (boffset)
return boffset;
}
/* Not found. */
return -1;
}
/* Baseclass is easily computed. */
return TYPE_BASECLASS_BITPOS (type, index) / 8;
}
int
is_object_type (struct type *type)
{
CHECK_TYPEDEF (type);
if (TYPE_CODE (type) == TYPE_CODE_PTR)
{
struct type *ttype = check_typedef (TYPE_TARGET_TYPE (type));
const char *name;
if (TYPE_CODE (ttype) != TYPE_CODE_STRUCT)
return 0;
while (TYPE_N_BASECLASSES (ttype) > 0)
ttype = TYPE_BASECLASS (ttype, 0);
name = TYPE_TAG_NAME (ttype);
if (name != NULL && strcmp (name, "java.lang.Object") == 0)
return 1;
name
= TYPE_NFIELDS (ttype) > 0 ? TYPE_FIELD_NAME (ttype, 0) : (char *) 0;
if (name != NULL && strcmp (name, "vtable") == 0)
return 1;
}
return 0;
}
/* Helper for expression_completer which recursively counts the number
of named fields and methods in a structure or union type. */
static int
count_struct_fields (struct type *type)
{
int i, result = 0;
CHECK_TYPEDEF (type);
for (i = 0; i < TYPE_NFIELDS (type); ++i)
{
if (i < TYPE_N_BASECLASSES (type))
result += count_struct_fields (TYPE_BASECLASS (type, i));
else if (TYPE_FIELD_NAME (type, i))
++result;
}
for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i)
{
if (TYPE_FN_FIELDLIST_NAME (type, i))
++result;
}
return result;
}
static struct type *
java_link_class_type (struct gdbarch *gdbarch,
struct type *type, struct value *clas)
{
struct value *temp;
const char *unqualified_name;
const char *name = TYPE_TAG_NAME (type);
int ninterfaces, nfields, nmethods;
int type_is_object = 0;
struct fn_field *fn_fields;
struct fn_fieldlist *fn_fieldlists;
struct value *fields;
struct value *methods;
struct value *method = NULL;
struct value *field = NULL;
int i, j;
struct objfile *objfile = get_dynamics_objfile (gdbarch);
struct type *tsuper;
gdb_assert (name != NULL);
unqualified_name = strrchr (name, '.');
if (unqualified_name == NULL)
unqualified_name = name;
temp = clas;
temp = value_struct_elt (&temp, NULL, "superclass", NULL, "structure");
if (strcmp (name, "java.lang.Object") == 0)
{
tsuper = get_java_object_type ();
if (tsuper && TYPE_CODE (tsuper) == TYPE_CODE_PTR)
tsuper = TYPE_TARGET_TYPE (tsuper);
type_is_object = 1;
}
else
tsuper = type_from_class (gdbarch, temp);
#if 1
ninterfaces = 0;
#else
temp = clas;
ninterfaces = value_as_long (value_struct_elt (&temp, NULL, "interface_len",
NULL, "structure"));
#endif
TYPE_N_BASECLASSES (type) = (tsuper == NULL ? 0 : 1) + ninterfaces;
temp = clas;
nfields = value_as_long (value_struct_elt (&temp, NULL, "field_count",
NULL, "structure"));
nfields += TYPE_N_BASECLASSES (type);
nfields++; /* Add one for dummy "class" field. */
TYPE_NFIELDS (type) = nfields;
TYPE_FIELDS (type) = (struct field *)
TYPE_ALLOC (type, sizeof (struct field) * nfields);
memset (TYPE_FIELDS (type), 0, sizeof (struct field) * nfields);
TYPE_FIELD_PRIVATE_BITS (type) =
(B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
B_CLRALL (TYPE_FIELD_PRIVATE_BITS (type), nfields);
TYPE_FIELD_PROTECTED_BITS (type) =
(B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
B_CLRALL (TYPE_FIELD_PROTECTED_BITS (type), nfields);
TYPE_FIELD_IGNORE_BITS (type) =
(B_TYPE *) TYPE_ALLOC (type, B_BYTES (nfields));
B_CLRALL (TYPE_FIELD_IGNORE_BITS (type), nfields);
TYPE_FIELD_VIRTUAL_BITS (type) = (B_TYPE *)
TYPE_ALLOC (type, B_BYTES (TYPE_N_BASECLASSES (type)));
B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type), TYPE_N_BASECLASSES (type));
if (tsuper != NULL)
{
TYPE_BASECLASS (type, 0) = tsuper;
if (type_is_object)
SET_TYPE_FIELD_PRIVATE (type, 0);
}
i = strlen (name);
if (i > 2 && name[i - 1] == ']' && tsuper != NULL)
{
/* FIXME */
TYPE_LENGTH (type) = TYPE_LENGTH (tsuper) + 4; /* size with "length" */
}
else
{
temp = clas;
temp = value_struct_elt (&temp, NULL, "size_in_bytes",
NULL, "structure");
TYPE_LENGTH (type) = value_as_long (temp);
}
fields = NULL;
nfields--; /* First set up dummy "class" field. */
SET_FIELD_PHYSADDR (TYPE_FIELD (type, nfields), value_address (clas));
TYPE_FIELD_NAME (type, nfields) = "class";
TYPE_FIELD_TYPE (type, nfields) = value_type (clas);
SET_TYPE_FIELD_PRIVATE (type, nfields);
for (i = TYPE_N_BASECLASSES (type); i < nfields; i++)
{
int accflags;
int boffset;
if (fields == NULL)
{
temp = clas;
fields = value_struct_elt (&temp, NULL, "fields", NULL, "structure");
field = value_ind (fields);
}
else
{ /* Re-use field value for next field. */
CORE_ADDR addr
= value_address (field) + TYPE_LENGTH (value_type (field));
set_value_address (field, addr);
set_value_lazy (field, 1);
}
temp = field;
temp = value_struct_elt (&temp, NULL, "name", NULL, "structure");
TYPE_FIELD_NAME (type, i) =
get_java_utf8_name (&objfile->objfile_obstack, temp);
temp = field;
accflags = value_as_long (value_struct_elt (&temp, NULL, "accflags",
NULL, "structure"));
temp = field;
temp = value_struct_elt (&temp, NULL, "info", NULL, "structure");
boffset = value_as_long (value_struct_elt (&temp, NULL, "boffset",
NULL, "structure"));
if (accflags & 0x0001) /* public access */
{
/* ??? */
}
if (accflags & 0x0002) /* private access */
{
SET_TYPE_FIELD_PRIVATE (type, i);
}
if (accflags & 0x0004) /* protected access */
{
SET_TYPE_FIELD_PROTECTED (type, i);
}
if (accflags & 0x0008) /* ACC_STATIC */
SET_FIELD_PHYSADDR (TYPE_FIELD (type, i), boffset);
else
SET_FIELD_BITPOS (TYPE_FIELD (type, i), 8 * boffset);
if (accflags & 0x8000) /* FIELD_UNRESOLVED_FLAG */
{
TYPE_FIELD_TYPE (type, i) = get_java_object_type (); /* FIXME */
}
else
{
struct type *ftype;
temp = field;
temp = value_struct_elt (&temp, NULL, "type", NULL, "structure");
ftype = type_from_class (gdbarch, temp);
if (TYPE_CODE (ftype) == TYPE_CODE_STRUCT)
ftype = lookup_pointer_type (ftype);
TYPE_FIELD_TYPE (type, i) = ftype;
}
}
temp = clas;
nmethods = value_as_long (value_struct_elt (&temp, NULL, "method_count",
NULL, "structure"));
j = nmethods * sizeof (struct fn_field);
fn_fields = (struct fn_field *)
obstack_alloc (&objfile->objfile_obstack, j);
memset (fn_fields, 0, j);
fn_fieldlists = (struct fn_fieldlist *)
alloca (nmethods * sizeof (struct fn_fieldlist));
methods = NULL;
for (i = 0; i < nmethods; i++)
{
const char *mname;
int k;
if (methods == NULL)
{
temp = clas;
methods = value_struct_elt (&temp, NULL, "methods",
NULL, "structure");
method = value_ind (methods);
}
else
{ /* Re-use method value for next method. */
CORE_ADDR addr
= value_address (method) + TYPE_LENGTH (value_type (method));
set_value_address (method, addr);
set_value_lazy (method, 1);
}
/* Get method name. */
temp = method;
temp = value_struct_elt (&temp, NULL, "name", NULL, "structure");
mname = get_java_utf8_name (&objfile->objfile_obstack, temp);
if (strcmp (mname, "<init>") == 0)
mname = unqualified_name;
/* Check for an existing method with the same name.
* This makes building the fn_fieldslists an O(nmethods**2)
* operation. That could be using hashing, but I doubt it
* is worth it. Note that we do maintain the order of methods
* in the inferior's Method table (as long as that is grouped
* by method name), which I think is desirable. --PB */
for (k = 0, j = TYPE_NFN_FIELDS (type);;)
{
if (--j < 0)
{ /* No match - new method name. */
j = TYPE_NFN_FIELDS (type)++;
fn_fieldlists[j].name = mname;
fn_fieldlists[j].length = 1;
fn_fieldlists[j].fn_fields = &fn_fields[i];
k = i;
break;
}
if (strcmp (mname, fn_fieldlists[j].name) == 0)
{ /* Found an existing method with the same name. */
int l;
if (mname != unqualified_name)
obstack_free (&objfile->objfile_obstack, mname);
mname = fn_fieldlists[j].name;
fn_fieldlists[j].length++;
k = i - k; /* Index of new slot. */
/* Shift intervening fn_fields (between k and i) down. */
for (l = i; l > k; l--)
fn_fields[l] = fn_fields[l - 1];
for (l = TYPE_NFN_FIELDS (type); --l > j;)
fn_fieldlists[l].fn_fields++;
break;
}
k += fn_fieldlists[j].length;
}
fn_fields[k].physname = "";
fn_fields[k].is_stub = 1;
/* FIXME */
fn_fields[k].type = lookup_function_type
(builtin_java_type (gdbarch)->builtin_void);
TYPE_CODE (fn_fields[k].type) = TYPE_CODE_METHOD;
}
j = TYPE_NFN_FIELDS (type) * sizeof (struct fn_fieldlist);
TYPE_FN_FIELDLISTS (type) = (struct fn_fieldlist *)
obstack_alloc (&objfile->objfile_obstack, j);
memcpy (TYPE_FN_FIELDLISTS (type), fn_fieldlists, j);
return type;
}
static void
java_print_value_fields (struct type *type, const gdb_byte *valaddr,
CORE_ADDR address, struct ui_file *stream,
int recurse,
const struct value_print_options *options)
{
int i, len, n_baseclasses;
CHECK_TYPEDEF (type);
fprintf_filtered (stream, "{");
len = TYPE_NFIELDS (type);
n_baseclasses = TYPE_N_BASECLASSES (type);
if (n_baseclasses > 0)
{
int i, n_baseclasses = TYPE_N_BASECLASSES (type);
for (i = 0; i < n_baseclasses; i++)
{
int boffset;
struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i));
char *basename = TYPE_NAME (baseclass);
const gdb_byte *base_valaddr;
if (BASETYPE_VIA_VIRTUAL (type, i))
continue;
if (basename != NULL && strcmp (basename, "java.lang.Object") == 0)
continue;
boffset = 0;
if (options->pretty)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 * (recurse + 1), stream);
}
fputs_filtered ("<", stream);
/* Not sure what the best notation is in the case where there is no
baseclass name. */
fputs_filtered (basename ? basename : "", stream);
fputs_filtered ("> = ", stream);
base_valaddr = valaddr;
java_print_value_fields (baseclass, base_valaddr, address + boffset,
stream, recurse + 1, options);
fputs_filtered (", ", stream);
}
}
if (!len && n_baseclasses == 1)
fprintf_filtered (stream, "<No data fields>");
else
{
int fields_seen = 0;
for (i = n_baseclasses; i < len; i++)
{
/* If requested, skip printing of static fields. */
if (field_is_static (&TYPE_FIELD (type, i)))
{
char *name = TYPE_FIELD_NAME (type, i);
if (!options->static_field_print)
continue;
if (name != NULL && strcmp (name, "class") == 0)
continue;
}
if (fields_seen)
fprintf_filtered (stream, ", ");
else if (n_baseclasses > 0)
{
if (options->pretty)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 + 2 * recurse, stream);
fputs_filtered ("members of ", stream);
fputs_filtered (type_name_no_tag (type), stream);
fputs_filtered (": ", stream);
}
}
fields_seen = 1;
if (options->pretty)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 + 2 * recurse, stream);
}
else
{
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),
language_cplus,
DMGL_PARAMS | DMGL_ANSI);
fputs_filtered ("\" \"", stream);
fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
language_cplus,
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),
language_cplus,
DMGL_PARAMS | DMGL_ANSI);
annotate_field_name_end ();
fputs_filtered (": ", stream);
annotate_field_value ();
}
if (!field_is_static (&TYPE_FIELD (type, i))
&& TYPE_FIELD_PACKED (type, i))
{
struct value *v;
/* Bitfields require special handling, especially due to byte
order problems. */
if (TYPE_FIELD_IGNORE (type, i))
{
fputs_filtered ("<optimized out or zero length>", stream);
}
else
{
struct value_print_options opts;
v = value_from_longest (TYPE_FIELD_TYPE (type, i),
unpack_field_as_long (type, valaddr, i));
opts = *options;
opts.deref_ref = 0;
common_val_print (v, stream, recurse + 1,
&opts, current_language);
}
}
else
{
if (TYPE_FIELD_IGNORE (type, i))
{
fputs_filtered ("<optimized out or zero length>", stream);
}
else if (field_is_static (&TYPE_FIELD (type, i)))
{
struct value *v = value_static_field (type, i);
if (v == NULL)
fputs_filtered ("<optimized out>", stream);
else
{
struct value_print_options opts;
struct type *t = check_typedef (value_type (v));
if (TYPE_CODE (t) == TYPE_CODE_STRUCT)
v = value_addr (v);
opts = *options;
opts.deref_ref = 0;
common_val_print (v, stream, recurse + 1,
&opts, current_language);
}
}
else if (TYPE_FIELD_TYPE (type, i) == NULL)
fputs_filtered ("<unknown type>", stream);
else
{
struct value_print_options opts = *options;
opts.deref_ref = 0;
val_print (TYPE_FIELD_TYPE (type, i),
valaddr + TYPE_FIELD_BITPOS (type, i) / 8, 0,
address + TYPE_FIELD_BITPOS (type, i) / 8,
stream, recurse + 1, &opts,
current_language);
}
}
annotate_field_end ();
}
if (options->pretty)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 * recurse, stream);
}
}
fprintf_filtered (stream, "}");
}
static void
pascal_object_print_value (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,
struct type **dont_print_vb)
{
struct type **last_dont_print
= (struct type **) obstack_next_free (&dont_print_vb_obstack);
struct obstack tmp_obstack = dont_print_vb_obstack;
int i, n_baseclasses = TYPE_N_BASECLASSES (type);
if (dont_print_vb == 0)
{
/* If we're at top level, carve out a completely fresh
chunk of the obstack and use that until this particular
invocation returns. */
/* Bump up the high-water mark. Now alpha is omega. */
obstack_finish (&dont_print_vb_obstack);
}
for (i = 0; i < n_baseclasses; i++)
{
int boffset = 0;
struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i));
const char *basename = type_name_no_tag (baseclass);
const gdb_byte *base_valaddr = NULL;
int thisoffset;
int skip = 0;
if (BASETYPE_VIA_VIRTUAL (type, i))
{
struct type **first_dont_print
= (struct type **) obstack_base (&dont_print_vb_obstack);
int j = (struct type **) obstack_next_free (&dont_print_vb_obstack)
- first_dont_print;
while (--j >= 0)
if (baseclass == first_dont_print[j])
goto flush_it;
obstack_ptr_grow (&dont_print_vb_obstack, baseclass);
}
thisoffset = offset;
TRY
{
boffset = baseclass_offset (type, i, valaddr, offset, address, val);
}
CATCH (ex, RETURN_MASK_ERROR)
{
if (ex.error == NOT_AVAILABLE_ERROR)
skip = -1;
else
skip = 1;
}
END_CATCH
if (skip == 0)
{
/* The virtual base class pointer might have been clobbered by the
user program. Make sure that it still points to a valid memory
location. */
if (boffset < 0 || boffset >= TYPE_LENGTH (type))
{
gdb_byte *buf;
struct cleanup *back_to;
buf = (gdb_byte *) xmalloc (TYPE_LENGTH (baseclass));
back_to = make_cleanup (xfree, buf);
base_valaddr = buf;
if (target_read_memory (address + boffset, buf,
TYPE_LENGTH (baseclass)) != 0)
skip = 1;
address = address + boffset;
thisoffset = 0;
boffset = 0;
do_cleanups (back_to);
}
else
base_valaddr = valaddr;
}
if (options->prettyformat)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 * recurse, stream);
}
fputs_filtered ("<", stream);
/* Not sure what the best notation is in the case where there is no
baseclass name. */
fputs_filtered (basename ? basename : "", stream);
fputs_filtered ("> = ", stream);
if (skip < 0)
val_print_unavailable (stream);
else if (skip > 0)
val_print_invalid_address (stream);
else
pascal_object_print_value_fields (baseclass, base_valaddr,
thisoffset + boffset, address,
stream, recurse, val, options,
(struct type **) obstack_base (&dont_print_vb_obstack),
0);
fputs_filtered (", ", stream);
flush_it:
;
}
if (dont_print_vb == 0)
{
/* Free the space used to deal with the printing
of this type from top level. */
obstack_free (&dont_print_vb_obstack, last_dont_print);
/* Reset watermark so that we can continue protecting
ourselves from whatever we were protecting ourselves. */
dont_print_vb_obstack = tmp_obstack;
}
}
static void
pascal_object_print_value (struct type *type, const gdb_byte *valaddr,
CORE_ADDR address, struct ui_file *stream,
int format, int recurse,
enum val_prettyprint pretty,
struct type **dont_print_vb)
{
struct type **last_dont_print
= (struct type **) obstack_next_free (&dont_print_vb_obstack);
struct obstack tmp_obstack = dont_print_vb_obstack;
int i, n_baseclasses = TYPE_N_BASECLASSES (type);
if (dont_print_vb == 0)
{
/* If we're at top level, carve out a completely fresh
chunk of the obstack and use that until this particular
invocation returns. */
/* Bump up the high-water mark. Now alpha is omega. */
obstack_finish (&dont_print_vb_obstack);
}
for (i = 0; i < n_baseclasses; i++)
{
int boffset;
struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i));
char *basename = type_name_no_tag (baseclass);
const gdb_byte *base_valaddr;
if (BASETYPE_VIA_VIRTUAL (type, i))
{
struct type **first_dont_print
= (struct type **) obstack_base (&dont_print_vb_obstack);
int j = (struct type **) obstack_next_free (&dont_print_vb_obstack)
- first_dont_print;
while (--j >= 0)
if (baseclass == first_dont_print[j])
goto flush_it;
obstack_ptr_grow (&dont_print_vb_obstack, baseclass);
}
boffset = baseclass_offset (type, i, valaddr, address);
if (pretty)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 * recurse, stream);
}
fputs_filtered ("<", stream);
/* Not sure what the best notation is in the case where there is no
baseclass name. */
fputs_filtered (basename ? basename : "", stream);
fputs_filtered ("> = ", stream);
/* The virtual base class pointer might have been clobbered by the
user program. Make sure that it still points to a valid memory
location. */
if (boffset != -1 && (boffset < 0 || boffset >= TYPE_LENGTH (type)))
{
/* FIXME (alloc): not safe is baseclass is really really big. */
gdb_byte *buf = alloca (TYPE_LENGTH (baseclass));
base_valaddr = buf;
if (target_read_memory (address + boffset, buf,
TYPE_LENGTH (baseclass)) != 0)
boffset = -1;
}
else
base_valaddr = valaddr + boffset;
if (boffset == -1)
fprintf_filtered (stream, "<invalid address>");
else
pascal_object_print_value_fields (baseclass, base_valaddr, address + boffset,
stream, format, recurse, pretty,
(struct type **) obstack_base (&dont_print_vb_obstack),
0);
fputs_filtered (", ", stream);
flush_it:
;
}
if (dont_print_vb == 0)
{
/* Free the space used to deal with the printing
of this type from top level. */
obstack_free (&dont_print_vb_obstack, last_dont_print);
/* Reset watermark so that we can continue protecting
ourselves from whatever we were protecting ourselves. */
dont_print_vb_obstack = tmp_obstack;
}
}
static gcc_type
compile_cplus_convert_struct_or_union (compile_cplus_instance *instance,
struct type *type,
enum gcc_cp_symbol_kind nested_access)
{
const char *filename = nullptr;
unsigned short line = 0;
/* Get the decl name of this type. */
gdb::unique_xmalloc_ptr<char> name
= compile_cplus_instance::decl_name (TYPE_NAME (type));
/* Create a new scope for TYPE. */
compile_scope scope = instance->new_scope (TYPE_NAME (type), type);
if (scope.nested_type () != GCC_TYPE_NONE)
{
/* The type requested was actually defined inside another type,
such as a nested class definition. Return that type. */
return scope.nested_type ();
}
/* Push all scopes. */
instance->enter_scope (std::move (scope));
/* First we create the resulting type and enter it into our hash
table. This lets recursive types work. */
gcc_decl resuld;
if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
{
const char *what = TYPE_DECLARED_CLASS (type) ? "struct" : "class";
resuld = instance->plugin ().build_decl
(what, name.get (), (GCC_CP_SYMBOL_CLASS | nested_access
| (TYPE_DECLARED_CLASS (type)
? GCC_CP_FLAG_CLASS_NOFLAG
: GCC_CP_FLAG_CLASS_IS_STRUCT)),
0, nullptr, 0, filename, line);
}
else
{
gdb_assert (TYPE_CODE (type) == TYPE_CODE_UNION);
resuld = instance->plugin ().build_decl
("union", name.get (), GCC_CP_SYMBOL_UNION | nested_access,
0, nullptr, 0, filename, line);
}
gcc_type result;
if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
{
struct gcc_vbase_array bases;
int num_baseclasses = TYPE_N_BASECLASSES (type);
memset (&bases, 0, sizeof (bases));
if (num_baseclasses > 0)
{
bases.elements = XNEWVEC (gcc_type, num_baseclasses);
bases.flags = XNEWVEC (enum gcc_cp_symbol_kind, num_baseclasses);
bases.n_elements = num_baseclasses;
for (int i = 0; i < num_baseclasses; ++i)
{
struct type *base_type = TYPE_BASECLASS (type, i);
bases.flags[i] = GCC_CP_SYMBOL_BASECLASS
| get_field_access_flag (type, i)
| (BASETYPE_VIA_VIRTUAL (type, i)
? GCC_CP_FLAG_BASECLASS_VIRTUAL
: GCC_CP_FLAG_BASECLASS_NOFLAG);
bases.elements[i] = instance->convert_type (base_type);
}
}
result = instance->plugin ().start_class_type
(name.get (), resuld, &bases, filename, line);
xfree (bases.flags);
xfree (bases.elements);
}
