def invokespecial(frame):
index = (ord(frame.code[frame.pc]) << 8) + ord(frame.code[frame.pc + 1])
frame.pc += 2
cp_item = frame.this_class.constant_pool[index]
assert cp_item[0] == 10 # CONSTANT_Methodref
klass_info = frame.this_class.constant_pool[cp_item[1]]
assert klass_info[0] == 7 # CONSTANT_Class_info
name_and_type = frame.this_class.constant_pool[cp_item[2]]
assert name_and_type[0] == 12 # name_and_type_index
klass_name = frame.this_class.constant_pool[klass_info[1]][1]
klass = frame.vm.get_class(klass_name)
method_name = frame.this_class.constant_pool[name_and_type[1]][1]
method_signature = frame.this_class.constant_pool[name_and_type[2]][1]
method = klass.find_method(method_name, method_signature)
logger.debug(klass_name)
logger.debug(method_name)
logger.debug(method_signature)
logger.debug(frame.stack)
if is_spec_lookup(frame.this_class, klass, method_name):
method = None
c = frame.this_class.super_class
while method is None:
if c is None:
break
if (method_name in c.methods
and method_signature in c.methods[method_name]):
method = c.methods[method_name][method_signature]
klass = c
break
c = c.super_class
assert method is not None
nargs = args_count(method_signature) + 1
args = [None] * nargs
while nargs > 0:
value = frame.stack.pop()
if type(value) is tuple and value[0] in ('long', 'double'):
nargs -= 1
args[nargs - 1] = value
nargs -= 1
assert len(args[0]) > 0
jassert_ref(args[0])
if args[0] is None:
frame.vm.raise_exception(frame, "java/lang/NullPointerException")
return
if method[0] & 0x0100 > 0: # is native?
exec_native(frame, args, klass, method_name, method_signature)
return
obj_mon = None
if method[0] & 0x0020 > 0: # is sync
obj_mon = frame.vm.heap[args[0][1]]
if "@monitor" in obj_mon.fields:
if obj_mon.fields["@monitor"] == frame.thread:
obj_mon.fields["@monitor_count"] += 1
else:
index = 0
while index < len(args):
a = args[index]
if type(a) is tuple and a[0] in ('long', 'double'):
index += 1
else:
frame.stack.append(a)
index += 1
raise SkipThreadCycle()
else:
obj_mon.fields["@monitor"] = frame.thread
obj_mon.fields["@monitor_count"] = 1
m_args = [''] * method[1]
m_args[0:len(args)] = args[0:len(args)]
instance = frame.vm.heap[args[0][1]]
logger.debug("InvokeSpec: %s:%s %s", method_name, method_signature,
instance)
sub = Frame(frame.thread, klass, method, m_args,
"%s:%s %s" % (method_name, method_signature, instance))
if obj_mon is not None:
sub.monitor = obj_mon
frame.thread.frame_stack.append(sub)
def invokevirtual(frame):
index = (ord(frame.code[frame.pc]) << 8) + ord(frame.code[frame.pc + 1])
frame.pc += 2
cp_item = frame.this_class.constant_pool[index]
assert cp_item[0] == 10 # CONSTANT_Methodref
klass_info = frame.this_class.constant_pool[cp_item[1]]
assert klass_info[0] == 7 # CONSTANT_Class_info
name_and_type = frame.this_class.constant_pool[cp_item[2]]
assert name_and_type[0] == 12 # name_and_type_index
klass_name = frame.this_class.constant_pool[klass_info[1]][1]
method_name = frame.this_class.constant_pool[name_and_type[1]][1]
method_signature = frame.this_class.constant_pool[name_and_type[2]][1]
logger.debug("%s %s %s", klass_name, method_name, method_signature)
klass = frame.vm.get_class(klass_name)
method = klass.find_method(method_name, method_signature)
nargs = args_count(method_signature) + 1
args = [None] * nargs
while nargs > 0:
value = frame.stack.pop()
if type(value) is tuple and value[0] in ('long', 'double'):
nargs -= 1
args[nargs - 1] = value
nargs -= 1
logger.debug(frame.id)
logger.debug(args)
logger.debug(method_signature)
jassert_ref(args[0])
if args[0] is None:
frame.vm.raise_exception(frame, "java/lang/NullPointerException")
return
if args[0][0] == "vm_ref": # vm owned object call
vm_obj_call(frame, args, method_name, method_signature)
return
# ignore signute polimorphic method
instance = frame.vm.heap[args[0][1]]
klass = instance.java_class
method = None
while method is None and klass is not None:
if method_name in klass.methods:
if method_signature in klass.methods[method_name]:
method = klass.methods[method_name][method_signature]
break
klass = klass.super_class
assert method is not None
assert klass is not None
if method[0] & 0x0100 > 0: # is native?
exec_native(frame, args, klass, method_name, method_signature)
return
obj_mon = None
if method[0] & 0x0020 > 0: # is sync
obj_mon = frame.vm.heap[args[0][1]]
if "@monitor" in obj_mon.fields:
if obj_mon.fields["@monitor"] == frame.thread:
obj_mon.fields["@monitor_count"] += 1
else:
index = 0
while index < len(args):
a = args[index]
if type(a) is tuple and a[0] in ('long', 'double'):
index += 1
else:
frame.stack.append(a)
index += 1
raise SkipThreadCycle()
else:
obj_mon.fields["@monitor"] = frame.thread
obj_mon.fields["@monitor_count"] = 1
m_args = [''] * method[1]
m_args[0:len(args)] = args[0:len(args)]
sub = Frame(
frame.thread, klass, method, m_args, "InvVirt: %s %s in %s" %
(method_name, method_signature, instance.java_class.this_name))
if obj_mon is not None:
sub.monitor = obj_mon
frame.thread.frame_stack.append(sub)
def invokespecial(frame):
index = (ord(frame.code[frame.pc]) << 8) + ord(frame.code[frame.pc + 1])
frame.pc += 2
cp_item = frame.this_class.constant_pool[index]
assert cp_item[0] == 10 # CONSTANT_Methodref
klass_info = frame.this_class.constant_pool[cp_item[1]]
assert klass_info[0] == 7 # CONSTANT_Class_info
name_and_type = frame.this_class.constant_pool[cp_item[2]]
assert name_and_type[0] == 12 # name_and_type_index
klass_name = frame.this_class.constant_pool[klass_info[1]][1]
klass = frame.vm.get_class(klass_name)
method_name = frame.this_class.constant_pool[name_and_type[1]][1]
method_signature = frame.this_class.constant_pool[name_and_type[2]][1]
method = klass.find_method(method_name, method_signature)
logger.debug(klass_name)
logger.debug(method_name)
logger.debug(method_signature)
logger.debug(frame.stack)
if is_spec_lookup(frame.this_class, klass, method_name):
method = None
c = frame.this_class.super_class
while method is None:
if c is None:
break
if (method_name in c.methods and
method_signature in c.methods[method_name]):
method = c.methods[method_name][method_signature]
klass = c
break
c = c.super_class
assert method is not None
nargs = args_count(method_signature) + 1
args = [None] * nargs
while nargs > 0:
value = frame.stack.pop()
if type(value) is tuple and value[0] in ('long', 'double'):
nargs -= 1
args[nargs - 1] = value
nargs -= 1
assert len(args[0]) > 0
jassert_ref(args[0])
if args[0] is None:
frame.vm.raise_exception(frame, "java/lang/NullPointerException")
return
if method[0] & 0x0100 > 0: # is native?
exec_native(frame, args, klass, method_name, method_signature)
return
obj_mon = None
if method[0] & 0x0020 > 0: # is sync
obj_mon = frame.vm.heap[args[0][1]]
if "@monitor" in obj_mon.fields:
if obj_mon.fields["@monitor"] == frame.thread:
obj_mon.fields["@monitor_count"] += 1
else:
index = 0
while index < len(args):
a = args[index]
if type(a) is tuple and a[0] in ('long', 'double'):
index += 1
else:
frame.stack.append(a)
index += 1
raise SkipThreadCycle()
else:
obj_mon.fields["@monitor"] = frame.thread
obj_mon.fields["@monitor_count"] = 1
m_args = [''] * method[1]
m_args[0:len(args)] = args[0:len(args)]
instance = frame.vm.heap[args[0][1]]
logger.debug("InvokeSpec: %s:%s %s", method_name, method_signature,
instance)
sub = Frame(frame.thread, klass, method, m_args,
"%s:%s %s" % (method_name, method_signature, instance))
if obj_mon is not None:
sub.monitor = obj_mon
frame.thread.frame_stack.append(sub)
def op_0xb9(frame): # invokeinterface
index = (ord(frame.code[frame.pc]) << 8) + ord(frame.code[frame.pc + 1])
frame.pc += 2
count = ord(frame.code[frame.pc])
assert count > 0
frame.pc += 1
zero = ord(frame.code[frame.pc])
assert zero == 0
frame.pc += 1
cp_item = frame.this_class.constant_pool[index]
assert cp_item[0] == 11 # CONSTANT_Methodref
klass_info = frame.this_class.constant_pool[cp_item[1]]
assert klass_info[0] == 7 # CONSTANT_Class_info
name_and_type = frame.this_class.constant_pool[cp_item[2]]
assert name_and_type[0] == 12 # name_and_type_index
klass_name = frame.this_class.constant_pool[klass_info[1]][1]
method_name = frame.this_class.constant_pool[name_and_type[1]][1]
method_signature = frame.this_class.constant_pool[name_and_type[2]][1]
logger.debug("%s %s %s", klass_name, method_name, method_signature)
frame.vm.get_class(klass_name)
nargs = args_count(method_signature) + 1
args = [None] * nargs
while nargs > 0:
value = frame.stack.pop()
if type(value) is tuple and value[0] in ('long', 'double'):
nargs -= 1
args[nargs - 1] = value
nargs -= 1
logger.debug(args)
logger.debug(method_signature)
assert len(args[0]) > 0
jassert_ref(args[0])
if args[0] is None:
frame.vm.raise_exception(frame, "java/lang/NullPointerException")
return
if args[0][0] == "vm_ref": # vm owned object call
vm_obj_call(frame, args, method_name, method_signature)
return
# ignore signute polimorphic method
instance = frame.vm.heap[args[0][1]]
klass = instance.java_class
method = None
while method is None and klass is not None:
if method_name in klass.methods:
if method_signature in klass.methods[method_name]:
method = klass.methods[method_name][method_signature]
break
klass = klass.super_class
assert method is not None
if method[0] & 0x0100 > 0: # is native?
exec_native(frame, args, klass, method_name, method_signature)
return
obj_mon = None
if method[0] & 0x0020 > 0: # is sync
obj_mon = frame.vm.heap[args[0][1]]
if "@monitor" in obj_mon.fields:
if obj_mon.fields["@monitor"] == frame.thread:
obj_mon.fields["@monitor_count"] += 1
else:
index = 0
while index < len(args):
a = args[index]
if type(a) is tuple and a[0] in ('long', 'double'):
index += 1
else:
frame.stack.append(a)
index += 1
raise SkipThreadCycle()
else:
obj_mon.fields["@monitor"] = frame.thread
obj_mon.fields["@monitor_count"] = 1
m_args = [''] * method[1]
m_args[0:len(args)] = args[0:len(args)]
sub = Frame(frame.thread, klass, method, m_args,
"InvInt: %s %s in %s" % (method_name, method_signature,
instance.java_class.this_name))
if obj_mon is not None:
sub.monitor = obj_mon
frame.thread.frame_stack.append(sub)
return
def invokestatic(frame):
index = (ord(frame.code[frame.pc]) << 8) + ord(frame.code[frame.pc + 1])
frame.pc += 2
cp_methodref = frame.this_class.constant_pool[index]
assert cp_methodref[0] == 10 # CONSTANT_Methodref
klass_info = frame.this_class.constant_pool[cp_methodref[1]]
assert klass_info[0] == 7 # CONSTANT_Class_info
name_and_type = frame.this_class.constant_pool[cp_methodref[2]]
assert name_and_type[0] == 12 # name_and_type_index
klass_name = frame.this_class.constant_pool[klass_info[1]][1]
method_name = frame.this_class.constant_pool[name_and_type[1]][1]
method_signature = frame.this_class.constant_pool[name_and_type[2]][1]
assert klass_name is not None
assert method_name is not None
assert method_signature is not None
if klass_name == "sun/misc/VM" and method_name == "isBooted":
# shortcut, to be remvoed
frame.stack.append(1)
return
if (klass_name == "sun/reflect/Reflection" and
method_name == "registerMethodsToFilter"):
logger.debug("Ignoring registerMethodsToFilter")
frame.stack.pop()
frame.stack.pop()
return
if (klass_name == "sun/misc/SharedSecrets" and
method_name == "getJavaLangAccess"):
# use vm owned object instead of constructing real one
frame.vm.get_class("sun/misc/JavaLangAccess")
frame.stack.append(("vm_ref", VM_OBJECTS["JavaLangAccess"]))
return
logger.debug("%s %s %s", klass_name, method_name, method_signature)
klass = frame.vm.get_class(klass_name)
method = klass.find_method(method_name, method_signature)
assert method is not None
assert method[0] & 0x0008 > 0 # make sure this is static method
obj_mon = None
if method[0] & 0x0020:
obj_mon = frame.vm.heap[klass.heap_ref[1]]
if "@monitor" in obj_mon.fields:
if obj_mon.fields["@monitor"] == frame.thread:
obj_mon.fields["@monitor_count"] += 1
else:
raise SkipThreadCycle()
else:
obj_mon.fields["@monitor"] = frame.thread
obj_mon.fields["@monitor_count"] = 1
nargs = args_count(method_signature)
args = [None] * nargs
while nargs > 0:
value = frame.stack.pop()
if type(value) is tuple and value[0] in ('long', 'double'):
nargs -= 1
args[nargs - 1] = value
nargs -= 1
if method[0] & 0x0100 > 0: # is native?
exec_native(frame, args, klass, method_name, method_signature)
return
m_args = [''] * method[1]
m_args[0:len(args)] = args[0:len(args)]
logger.debug("InvStatic: %s %s in %s", method_name, method_signature,
klass_name)
if method_name == "countBits":
frame.stack.append(5)
return
sub = Frame(frame.thread, klass, method, m_args,
"InvStatic: %s %s in %s" % (method_name, method_signature,
klass_name))
if obj_mon is not None:
sub.monitor = obj_mon
frame.thread.frame_stack.append(sub)
def invokestatic(frame):
index = (ord(frame.code[frame.pc]) << 8) + ord(frame.code[frame.pc + 1])
frame.pc += 2
cp_methodref = frame.this_class.constant_pool[index]
assert cp_methodref[0] == 10 # CONSTANT_Methodref
klass_info = frame.this_class.constant_pool[cp_methodref[1]]
assert klass_info[0] == 7 # CONSTANT_Class_info
name_and_type = frame.this_class.constant_pool[cp_methodref[2]]
assert name_and_type[0] == 12 # name_and_type_index
klass_name = frame.this_class.constant_pool[klass_info[1]][1]
method_name = frame.this_class.constant_pool[name_and_type[1]][1]
method_signature = frame.this_class.constant_pool[name_and_type[2]][1]
assert klass_name is not None
assert method_name is not None
assert method_signature is not None
if klass_name == "sun/misc/VM" and method_name == "isBooted":
# shortcut, to be remvoed
frame.stack.append(1)
return
if (klass_name == "sun/reflect/Reflection"
and method_name == "registerMethodsToFilter"):
logger.debug("Ignoring registerMethodsToFilter")
frame.stack.pop()
frame.stack.pop()
return
if (klass_name == "sun/misc/SharedSecrets"
and method_name == "getJavaLangAccess"):
# use vm owned object instead of constructing real one
frame.vm.get_class("sun/misc/JavaLangAccess")
frame.stack.append(("vm_ref", VM_OBJECTS["JavaLangAccess"]))
return
logger.debug("%s %s %s", klass_name, method_name, method_signature)
klass = frame.vm.get_class(klass_name)
method = klass.find_method(method_name, method_signature)
assert method is not None
assert method[0] & 0x0008 > 0 # make sure this is static method
obj_mon = None
if method[0] & 0x0020:
obj_mon = frame.vm.heap[klass.heap_ref[1]]
if "@monitor" in obj_mon.fields:
if obj_mon.fields["@monitor"] == frame.thread:
obj_mon.fields["@monitor_count"] += 1
else:
raise SkipThreadCycle()
else:
obj_mon.fields["@monitor"] = frame.thread
obj_mon.fields["@monitor_count"] = 1
nargs = args_count(method_signature)
args = [None] * nargs
while nargs > 0:
value = frame.stack.pop()
if type(value) is tuple and value[0] in ('long', 'double'):
nargs -= 1
args[nargs - 1] = value
nargs -= 1
if method[0] & 0x0100 > 0: # is native?
exec_native(frame, args, klass, method_name, method_signature)
return
m_args = [''] * method[1]
m_args[0:len(args)] = args[0:len(args)]
logger.debug("InvStatic: %s %s in %s", method_name, method_signature,
klass_name)
if method_name == "countBits":
frame.stack.append(5)
return
sub = Frame(
frame.thread, klass, method, m_args,
"InvStatic: %s %s in %s" % (method_name, method_signature, klass_name))
if obj_mon is not None:
sub.monitor = obj_mon
frame.thread.frame_stack.append(sub)