static SCM
vlscm_unop (enum valscm_unary_opcode opcode, SCM x, const char *func_name)
{
struct gdbarch *gdbarch = get_current_arch ();
const struct language_defn *language = current_language;
struct value *arg1;
SCM result = SCM_BOOL_F;
struct value *res_val = NULL;
SCM except_scm;
struct cleanup *cleanups;
cleanups = make_cleanup_value_free_to_mark (value_mark ());
arg1 = vlscm_convert_value_from_scheme (func_name, SCM_ARG1, x,
&except_scm, gdbarch, language);
if (arg1 == NULL)
{
do_cleanups (cleanups);
gdbscm_throw (except_scm);
}
TRY
{
switch (opcode)
{
case VALSCM_NOT:
/* Alas gdb and guile use the opposite meaning for "logical not". */
{
struct type *type = language_bool_type (language, gdbarch);
res_val
= value_from_longest (type, (LONGEST) value_logical_not (arg1));
}
break;
case VALSCM_NEG:
res_val = value_neg (arg1);
break;
case VALSCM_NOP:
/* Seemingly a no-op, but if X was a Scheme value it is now
a <gdb:value> object. */
res_val = arg1;
break;
case VALSCM_ABS:
if (value_less (arg1, value_zero (value_type (arg1), not_lval)))
res_val = value_neg (arg1);
else
res_val = arg1;
break;
case VALSCM_LOGNOT:
res_val = value_complement (arg1);
break;
default:
gdb_assert_not_reached ("unsupported operation");
}
}
CATCH (except, RETURN_MASK_ALL)
{
GDBSCM_HANDLE_GDB_EXCEPTION_WITH_CLEANUPS (except, cleanups);
}
/* Returns non-zero if the value VAL represents a true value. */
int
value_true (struct value *val)
{
/* It is possible that we should have some sort of error if a non-boolean
value is used in this context. Possibly dependent on some kind of
"boolean-checking" option like range checking. But it should probably
not depend on the language except insofar as is necessary to identify
a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean
should be an error, probably). */
return !value_logical_not (val);
}
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);
}
int
java_value_print (struct value *val, struct ui_file *stream,
const struct value_print_options *options)
{
struct gdbarch *gdbarch = get_type_arch (value_type (val));
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
struct type *type;
CORE_ADDR address;
int i;
char *name;
struct value_print_options opts;
type = value_type (val);
address = value_address (val);
if (is_object_type (type))
{
CORE_ADDR obj_addr;
/* Get the run-time type, and cast the object into that */
obj_addr = unpack_pointer (type, value_contents (val));
if (obj_addr != 0)
{
type = type_from_class (gdbarch, java_class_from_object (val));
type = lookup_pointer_type (type);
val = value_at (type, address);
}
}
if (TYPE_CODE (type) == TYPE_CODE_PTR && !value_logical_not (val))
type_print (TYPE_TARGET_TYPE (type), "", stream, -1);
name = TYPE_TAG_NAME (type);
if (TYPE_CODE (type) == TYPE_CODE_STRUCT && name != NULL
&& (i = strlen (name), name[i - 1] == ']'))
{
gdb_byte buf4[4];
long length;
unsigned int things_printed = 0;
int reps;
struct type *el_type
= java_primitive_type_from_name (gdbarch, name, i - 2);
i = 0;
read_memory (address + get_java_object_header_size (gdbarch), buf4, 4);
length = (long) extract_signed_integer (buf4, 4, byte_order);
fprintf_filtered (stream, "{length: %ld", length);
if (el_type == NULL)
{
CORE_ADDR element;
CORE_ADDR next_element = -1; /* dummy initial value */
/* Skip object header and length. */
address += get_java_object_header_size (gdbarch) + 4;
while (i < length && things_printed < options->print_max)
{
gdb_byte *buf;
buf = alloca (gdbarch_ptr_bit (gdbarch) / HOST_CHAR_BIT);
fputs_filtered (", ", stream);
wrap_here (n_spaces (2));
if (i > 0)
element = next_element;
else
{
read_memory (address, buf, sizeof (buf));
address += gdbarch_ptr_bit (gdbarch) / HOST_CHAR_BIT;
/* FIXME: cagney/2003-05-24: Bogus or what. It
pulls a host sized pointer out of the target and
then extracts that as an address (while assuming
that the address is unsigned)! */
element = extract_unsigned_integer (buf, sizeof (buf),
byte_order);
}
for (reps = 1; i + reps < length; reps++)
{
read_memory (address, buf, sizeof (buf));
address += gdbarch_ptr_bit (gdbarch) / HOST_CHAR_BIT;
/* FIXME: cagney/2003-05-24: Bogus or what. It
pulls a host sized pointer out of the target and
then extracts that as an address (while assuming
that the address is unsigned)! */
next_element = extract_unsigned_integer (buf, sizeof (buf),
byte_order);
if (next_element != element)
break;
}
if (reps == 1)
fprintf_filtered (stream, "%d: ", i);
else
fprintf_filtered (stream, "%d..%d: ", i, i + reps - 1);
if (element == 0)
fprintf_filtered (stream, "null");
else
fprintf_filtered (stream, "@%s", paddress (gdbarch, element));
things_printed++;
i += reps;
}
}
else
{
struct value *v = allocate_value (el_type);
struct value *next_v = allocate_value (el_type);
set_value_address (v, (address
+ get_java_object_header_size (gdbarch) + 4));
set_value_address (next_v, value_raw_address (v));
while (i < length && things_printed < options->print_max)
{
fputs_filtered (", ", stream);
wrap_here (n_spaces (2));
if (i > 0)
{
struct value *tmp;
tmp = next_v;
next_v = v;
v = tmp;
}
else
{
set_value_lazy (v, 1);
set_value_offset (v, 0);
}
set_value_offset (next_v, value_offset (v));
for (reps = 1; i + reps < length; reps++)
{
set_value_lazy (next_v, 1);
set_value_offset (next_v, value_offset (next_v) + TYPE_LENGTH (el_type));
if (memcmp (value_contents (v), value_contents (next_v),
TYPE_LENGTH (el_type)) != 0)
break;
}
if (reps == 1)
fprintf_filtered (stream, "%d: ", i);
else
fprintf_filtered (stream, "%d..%d: ", i, i + reps - 1);
opts = *options;
opts.deref_ref = 1;
common_val_print (v, stream, 1, &opts, current_language);
things_printed++;
i += reps;
}
}
if (i < length)
fprintf_filtered (stream, "...");
fprintf_filtered (stream, "}");
return 0;
}
/* If it's type String, print it */
if (TYPE_CODE (type) == TYPE_CODE_PTR
&& TYPE_TARGET_TYPE (type)
&& TYPE_TAG_NAME (TYPE_TARGET_TYPE (type))
&& strcmp (TYPE_TAG_NAME (TYPE_TARGET_TYPE (type)),
"java.lang.String") == 0
&& (options->format == 0 || options->format == 's')
&& address != 0
&& value_as_address (val) != 0)
{
struct type *char_type;
struct value *data_val;
CORE_ADDR data;
struct value *boffset_val;
unsigned long boffset;
struct value *count_val;
unsigned long count;
struct value *mark;
mark = value_mark (); /* Remember start of new values */
data_val = value_struct_elt (&val, NULL, "data", NULL, NULL);
data = value_as_address (data_val);
boffset_val = value_struct_elt (&val, NULL, "boffset", NULL, NULL);
boffset = value_as_address (boffset_val);
count_val = value_struct_elt (&val, NULL, "count", NULL, NULL);
count = value_as_address (count_val);
value_free_to_mark (mark); /* Release unnecessary values */
char_type = builtin_java_type (gdbarch)->builtin_char;
val_print_string (char_type, data + boffset, count, stream, options);
return 0;
}
opts = *options;
opts.deref_ref = 1;
return common_val_print (val, stream, 0, &opts, current_language);
}
int
java_value_print (struct value *val, struct ui_file *stream, int format,
enum val_prettyprint pretty)
{
struct type *type;
CORE_ADDR address;
int i;
char *name;
type = VALUE_TYPE (val);
address = VALUE_ADDRESS (val) + VALUE_OFFSET (val);
if (is_object_type (type))
{
CORE_ADDR obj_addr;
/* Get the run-time type, and cast the object into that */
obj_addr = unpack_pointer (type, VALUE_CONTENTS (val));
if (obj_addr != 0)
{
type = type_from_class (java_class_from_object (val));
type = lookup_pointer_type (type);
val = value_at (type, address, NULL);
}
}
if (TYPE_CODE (type) == TYPE_CODE_PTR && !value_logical_not (val))
type_print (TYPE_TARGET_TYPE (type), "", stream, -1);
name = TYPE_TAG_NAME (type);
if (TYPE_CODE (type) == TYPE_CODE_STRUCT && name != NULL
&& (i = strlen (name), name[i - 1] == ']'))
{
char buf4[4];
long length;
unsigned int things_printed = 0;
int reps;
struct type *el_type = java_primitive_type_from_name (name, i - 2);
i = 0;
read_memory (address + JAVA_OBJECT_SIZE, buf4, 4);
length = (long) extract_signed_integer (buf4, 4);
fprintf_filtered (stream, "{length: %ld", length);
if (el_type == NULL)
{
CORE_ADDR element;
CORE_ADDR next_element = -1; /* dummy initial value */
address += JAVA_OBJECT_SIZE + 4; /* Skip object header and length. */
while (i < length && things_printed < print_max)
{
char *buf;
buf = alloca (TARGET_PTR_BIT / HOST_CHAR_BIT);
fputs_filtered (", ", stream);
wrap_here (n_spaces (2));
if (i > 0)
element = next_element;
else
{
read_memory (address, buf, sizeof (buf));
address += TARGET_PTR_BIT / HOST_CHAR_BIT;
element = extract_address (buf, sizeof (buf));
}
for (reps = 1; i + reps < length; reps++)
{
read_memory (address, buf, sizeof (buf));
address += TARGET_PTR_BIT / HOST_CHAR_BIT;
next_element = extract_address (buf, sizeof (buf));
if (next_element != element)
break;
}
if (reps == 1)
fprintf_filtered (stream, "%d: ", i);
else
fprintf_filtered (stream, "%d..%d: ", i, i + reps - 1);
if (element == 0)
fprintf_filtered (stream, "null");
else
fprintf_filtered (stream, "@%s", paddr_nz (element));
things_printed++;
i += reps;
}
}
else
{
struct value *v = allocate_value (el_type);
struct value *next_v = allocate_value (el_type);
VALUE_ADDRESS (v) = address + JAVA_OBJECT_SIZE + 4;
VALUE_ADDRESS (next_v) = VALUE_ADDRESS (v);
while (i < length && things_printed < print_max)
{
fputs_filtered (", ", stream);
wrap_here (n_spaces (2));
if (i > 0)
{
struct value *tmp;
tmp = next_v;
next_v = v;
v = tmp;
}
else
{
VALUE_LAZY (v) = 1;
VALUE_OFFSET (v) = 0;
}
VALUE_OFFSET (next_v) = VALUE_OFFSET (v);
for (reps = 1; i + reps < length; reps++)
{
VALUE_LAZY (next_v) = 1;
VALUE_OFFSET (next_v) += TYPE_LENGTH (el_type);
if (memcmp (VALUE_CONTENTS (v), VALUE_CONTENTS (next_v),
TYPE_LENGTH (el_type)) != 0)
break;
}
if (reps == 1)
fprintf_filtered (stream, "%d: ", i);
else
fprintf_filtered (stream, "%d..%d: ", i, i + reps - 1);
val_print (VALUE_TYPE (v), VALUE_CONTENTS (v), 0, 0,
stream, format, 2, 1, pretty);
things_printed++;
i += reps;
}
}
if (i < length)
fprintf_filtered (stream, "...");
fprintf_filtered (stream, "}");
return 0;
}
/* If it's type String, print it */
if (TYPE_CODE (type) == TYPE_CODE_PTR
&& TYPE_TARGET_TYPE (type)
&& TYPE_NAME (TYPE_TARGET_TYPE (type))
&& strcmp (TYPE_NAME (TYPE_TARGET_TYPE (type)), "java.lang.String") == 0
&& (format == 0 || format == 's')
&& address != 0
&& value_as_address (val) != 0)
{
struct value *data_val;
CORE_ADDR data;
struct value *boffset_val;
unsigned long boffset;
struct value *count_val;
unsigned long count;
struct value *mark;
mark = value_mark (); /* Remember start of new values */
data_val = value_struct_elt (&val, NULL, "data", NULL, NULL);
data = value_as_address (data_val);
boffset_val = value_struct_elt (&val, NULL, "boffset", NULL, NULL);
boffset = value_as_address (boffset_val);
count_val = value_struct_elt (&val, NULL, "count", NULL, NULL);
count = value_as_address (count_val);
value_free_to_mark (mark); /* Release unnecessary values */
val_print_string (data + boffset, count, 2, stream);
return 0;
}
return (val_print (type, VALUE_CONTENTS (val), 0, address,
stream, format, 1, 0, pretty));
}
