static struct symtab *
get_java_class_symtab (void)
{
if (class_symtab == NULL)
{
struct objfile *objfile = get_dynamics_objfile ();
struct blockvector *bv;
struct block *bl;
class_symtab = allocate_symtab ("<java-classes>", objfile);
class_symtab->language = language_java;
bv = (struct blockvector *)
obstack_alloc (&objfile->objfile_obstack,
sizeof (struct blockvector) + sizeof (struct block *));
BLOCKVECTOR_NBLOCKS (bv) = 1;
BLOCKVECTOR (class_symtab) = bv;
/* Allocate dummy STATIC_BLOCK. */
bl = allocate_block (&objfile->objfile_obstack);
BLOCK_DICT (bl) = dict_create_linear (&objfile->objfile_obstack,
NULL);
BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK) = bl;
/* Allocate GLOBAL_BLOCK. */
bl = allocate_block (&objfile->objfile_obstack);
BLOCK_DICT (bl) = dict_create_hashed_expandable ();
BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK) = bl;
class_symtab->free_func = free_class_block;
}
return class_symtab;
}
static struct symbol *
add_class_symbol (struct type *type, CORE_ADDR addr)
{
struct symbol *sym;
struct objfile *objfile = get_dynamics_objfile (get_type_arch (type));
sym = allocate_symbol (objfile);
SYMBOL_SET_LANGUAGE (sym, language_java, &objfile->objfile_obstack);
SYMBOL_SET_LINKAGE_NAME (sym, TYPE_TAG_NAME (type));
SYMBOL_ACLASS_INDEX (sym) = LOC_TYPEDEF;
/* SYMBOL_VALUE (sym) = valu; */
SYMBOL_TYPE (sym) = type;
SYMBOL_DOMAIN (sym) = STRUCT_DOMAIN;
SYMBOL_VALUE_ADDRESS (sym) = addr;
return sym;
}
static struct symbol *
add_class_symbol (struct type *type, CORE_ADDR addr)
{
struct symbol *sym;
struct objfile *objfile = get_dynamics_objfile (get_type_arch (type));
sym = (struct symbol *)
obstack_alloc (&objfile->objfile_obstack, sizeof (struct symbol));
memset (sym, 0, sizeof (struct symbol));
SYMBOL_SET_LANGUAGE (sym, language_java);
SYMBOL_SET_LINKAGE_NAME (sym, TYPE_TAG_NAME (type));
SYMBOL_CLASS (sym) = LOC_TYPEDEF;
/* SYMBOL_VALUE (sym) = valu; */
SYMBOL_TYPE (sym) = type;
SYMBOL_DOMAIN (sym) = STRUCT_DOMAIN;
SYMBOL_VALUE_ADDRESS (sym) = addr;
return sym;
}
static struct symtab *
get_java_class_symtab (struct gdbarch *gdbarch)
{
struct objfile *objfile = get_dynamics_objfile (gdbarch);
struct symtab *class_symtab = objfile->symtabs;
if (class_symtab == NULL)
{
struct blockvector *bv;
struct block *bl;
struct jv_per_objfile_data *jv_data;
class_symtab = allocate_symtab ("<java-classes>", objfile);
class_symtab->language = language_java;
bv = (struct blockvector *)
obstack_alloc (&objfile->objfile_obstack,
sizeof (struct blockvector) + sizeof (struct block *));
BLOCKVECTOR_NBLOCKS (bv) = 1;
BLOCKVECTOR (class_symtab) = bv;
/* Allocate dummy STATIC_BLOCK. */
bl = allocate_block (&objfile->objfile_obstack);
BLOCK_DICT (bl) = dict_create_linear (&objfile->objfile_obstack,
NULL);
BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK) = bl;
/* Allocate GLOBAL_BLOCK. */
bl = allocate_global_block (&objfile->objfile_obstack);
BLOCK_DICT (bl) = dict_create_hashed_expandable ();
set_block_symtab (bl, class_symtab);
BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK) = bl;
/* Arrange to free the dict. */
jv_data = objfile_data (objfile, jv_dynamics_objfile_data_key);
jv_data->dict = BLOCK_DICT (bl);
}
return class_symtab;
}
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;
}
struct type *
type_from_class (struct gdbarch *gdbarch, struct value *clas)
{
struct type *type;
char *name;
struct value *temp;
struct objfile *objfile;
struct value *utf8_name;
char *nptr;
CORE_ADDR addr;
type = check_typedef (value_type (clas));
if (TYPE_CODE (type) == TYPE_CODE_PTR)
{
if (value_logical_not (clas))
return NULL;
clas = value_ind (clas);
}
addr = value_address (clas);
objfile = get_dynamics_objfile (gdbarch);
if (java_class_is_primitive (clas))
{
struct value *sig;
temp = clas;
sig = value_struct_elt (&temp, NULL, "method_count", NULL, "structure");
return java_primitive_type (gdbarch, value_as_long (sig));
}
/* Get Class name. */
/* If clasloader non-null, prepend loader address. FIXME */
temp = clas;
utf8_name = value_struct_elt (&temp, NULL, "name", NULL, "structure");
name = get_java_utf8_name (&objfile->objfile_obstack, utf8_name);
for (nptr = name; *nptr != 0; nptr++)
{
if (*nptr == '/')
*nptr = '.';
}
type = java_lookup_class (name);
if (type != NULL)
return type;
type = alloc_type (objfile);
TYPE_CODE (type) = TYPE_CODE_STRUCT;
INIT_CPLUS_SPECIFIC (type);
if (name[0] == '[')
{
char *signature = name;
int namelen = java_demangled_signature_length (signature);
if (namelen > strlen (name))
name = obstack_alloc (&objfile->objfile_obstack, namelen + 1);
java_demangled_signature_copy (name, signature);
name[namelen] = '\0';
temp = clas;
/* Set array element type. */
temp = value_struct_elt (&temp, NULL, "methods", NULL, "structure");
deprecated_set_value_type (temp,
lookup_pointer_type (value_type (clas)));
TYPE_TARGET_TYPE (type) = type_from_class (gdbarch, temp);
}
ALLOCATE_CPLUS_STRUCT_TYPE (type);
TYPE_TAG_NAME (type) = name;
add_class_symtab_symbol (add_class_symbol (type, addr));
return java_link_class_type (gdbarch, type, clas);
}
