operating_system.py [plain text]
import lldb
import struct
osplugin_target_obj = None
class PluginValue(lldb.SBValue):
def GetChildMemberWithName(val, name):
val_type = val.GetType()
if val_type.IsPointerType() == True:
val_type = val_type.GetPointeeType()
for i in range(val_type.GetNumberOfFields()):
if name == val_type.GetFieldAtIndex(i).GetName():
return PluginValue(val.GetChildAtIndex(i))
return None
class Armv8_RegisterSet(object):
""" register info set for armv8 64 bit architecture"""
register_info = { 'sets' : ['GPR'],
'registers': [
{'name': 'x0' , 'bitsize':64, 'offset': 0, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 0, 'dwarf': 0, 'alt-name':'arg1', 'generic':'arg1'},
{'name': 'x1' , 'bitsize':64, 'offset': 8, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 1, 'dwarf': 1, 'alt-name':'arg2', 'generic':'arg2'},
{'name': 'x2' , 'bitsize':64, 'offset': 16, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 2, 'dwarf': 2, 'alt-name':'arg3', 'generic':'arg3'},
{'name': 'x3' , 'bitsize':64, 'offset': 24, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 3, 'dwarf': 3, 'alt-name':'arg4', 'generic':'arg4'},
{'name': 'x4' , 'bitsize':64, 'offset': 32, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 4, 'dwarf': 4, 'alt-name':'arg5', 'generic':'arg5'},
{'name': 'x5' , 'bitsize':64, 'offset': 40, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 5, 'dwarf': 5, 'alt-name':'arg6', 'generic':'arg6'},
{'name': 'x6' , 'bitsize':64, 'offset': 48, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 6, 'dwarf': 6, 'alt-name':'arg7', 'generic':'arg7'},
{'name': 'x7' , 'bitsize':64, 'offset': 56, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 7, 'dwarf': 7, 'alt-name':'arg8', 'generic':'arg8'},
{'name': 'x8' , 'bitsize':64, 'offset': 64, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 8, 'dwarf': 8},
{'name': 'x9' , 'bitsize':64, 'offset': 72, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 9, 'dwarf': 9},
{'name': 'x10' , 'bitsize':64, 'offset': 80, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':10, 'dwarf':10},
{'name': 'x11' , 'bitsize':64, 'offset': 88, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':11, 'dwarf':11},
{'name': 'x12' , 'bitsize':64, 'offset': 96, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':12, 'dwarf':12},
{'name': 'x13' , 'bitsize':64, 'offset':104, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':13, 'dwarf':13},
{'name': 'x14' , 'bitsize':64, 'offset':112, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':14, 'dwarf':14},
{'name': 'x15' , 'bitsize':64, 'offset':120, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':15, 'dwarf':15},
{'name': 'x16' , 'bitsize':64, 'offset':128, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':16, 'dwarf':16},
{'name': 'x17' , 'bitsize':64, 'offset':136, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':17, 'dwarf':17},
{'name': 'x18' , 'bitsize':64, 'offset':144, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':18, 'dwarf':18},
{'name': 'x19' , 'bitsize':64, 'offset':152, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':19, 'dwarf':19},
{'name': 'x20' , 'bitsize':64, 'offset':160, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':20, 'dwarf':20},
{'name': 'x21' , 'bitsize':64, 'offset':168, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':21, 'dwarf':21},
{'name': 'x22' , 'bitsize':64, 'offset':176, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':22, 'dwarf':22},
{'name': 'x23' , 'bitsize':64, 'offset':184, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':23, 'dwarf':23},
{'name': 'x24' , 'bitsize':64, 'offset':192, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':24, 'dwarf':24},
{'name': 'x25' , 'bitsize':64, 'offset':200, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':25, 'dwarf':25},
{'name': 'x26' , 'bitsize':64, 'offset':208, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':26, 'dwarf':26},
{'name': 'x27' , 'bitsize':64, 'offset':216, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':27, 'dwarf':27},
{'name': 'x28' , 'bitsize':64, 'offset':224, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':28, 'dwarf':28},
{'name': 'fp' , 'bitsize':64, 'offset':232, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':29, 'dwarf':29, 'alt-name': 'fp', 'generic':'fp'},
{'name': 'lr' , 'bitsize':64, 'offset':240, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':30, 'dwarf':30, 'alt-name': 'lr', 'generic':'lr'},
{'name': 'sp' , 'bitsize':64, 'offset':248, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':31, 'dwarf':31, 'alt-name': 'sp', 'generic':'sp'},
{'name': 'pc' , 'bitsize':64, 'offset':256, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':32, 'dwarf':32, 'alt-name': 'pc', 'generic':'pc'},
{'name': 'far' , 'bitsize':64, 'offset':264, 'encoding':'uint', 'format':'hex', 'set':0},
{'name': 'cpsr', 'bitsize':32, 'offset':272, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':33, 'dwarf':33, 'generic':'flags'},
{'name': 'esr' , 'bitsize':32, 'offset':276, 'encoding':'uint', 'format':'hex', 'set':0},
]
}
def __init__(self):
self.switch_context_address = osplugin_target_obj.FindSymbols('Switch_context')[0].GetSymbol().GetStartAddress().GetLoadAddress(osplugin_target_obj)
self.ResetRegisterValues()
def ResetRegisterValues(self):
self.x0 = 0
self.x1 = 0
self.x2 = 0
self.x3 = 0
self.x4 = 0
self.x5 = 0
self.x6 = 0
self.x7 = 0
self.x8 = 0
self.x9 = 0
self.x10 = 0
self.x11 = 0
self.x12 = 0
self.x13 = 0
self.x14 = 0
self.x15 = 0
self.x16 = 0
self.x17 = 0
self.x18 = 0
self.x19 = 0
self.x20 = 0
self.x21 = 0
self.x22 = 0
self.x23 = 0
self.x24 = 0
self.x25 = 0
self.x26 = 0
self.x27 = 0
self.x28 = 0
self.fp = 0
self.lr = 0
self.sp = 0
self.pc = 0
self.far = 0
self.cpsr = 0
self.esr = 0
def __str__(self):
return """ pc = """
def GetPackedRegisterState(self):
return struct.pack('34QII', self.x0, self.x1, self.x2, self.x3, self.x4, self.x5,
self.x6, self.x7, self.x8, self.x9, self.x10, self.x11, self.x12, self.x13,
self.x14, self.x15, self.x16, self.x17, self.x18, self.x19, self.x20, self.x21,
self.x22, self.x23, self.x24, self.x25, self.x26, self.x27, self.x28, self.fp,
self.lr, self.sp, self.pc, self.far, self.cpsr, self.esr)
def ReadRegisterDataFromKDPSavedState(self, kdp_state, kernel_version):
""" Setup register values from KDP saved information.
"""
saved_state = kernel_version.CreateValueFromExpression(None, '(struct arm_saved_state64 *) ' + str(kdp_state.GetValueAsUnsigned()))
saved_state = saved_state.Dereference()
saved_state = PluginValue(saved_state)
self.ResetRegisterValues()
self.x0 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(0).GetValueAsUnsigned()
self.x1 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(1).GetValueAsUnsigned()
self.x2 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(2).GetValueAsUnsigned()
self.x3 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(3).GetValueAsUnsigned()
self.x4 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(4).GetValueAsUnsigned()
self.x5 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(5).GetValueAsUnsigned()
self.x6 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(6).GetValueAsUnsigned()
self.x7 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(7).GetValueAsUnsigned()
self.x8 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(8).GetValueAsUnsigned()
self.x9 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(9).GetValueAsUnsigned()
self.x10 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(10).GetValueAsUnsigned()
self.x11 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(11).GetValueAsUnsigned()
self.x12 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(12).GetValueAsUnsigned()
self.x13 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(13).GetValueAsUnsigned()
self.x14 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(14).GetValueAsUnsigned()
self.x15 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(15).GetValueAsUnsigned()
self.x16 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(16).GetValueAsUnsigned()
self.x17 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(17).GetValueAsUnsigned()
self.x18 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(18).GetValueAsUnsigned()
self.x19 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(19).GetValueAsUnsigned()
self.x20 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(20).GetValueAsUnsigned()
self.x21 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(21).GetValueAsUnsigned()
self.x22 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(22).GetValueAsUnsigned()
self.x23 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(23).GetValueAsUnsigned()
self.x24 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(24).GetValueAsUnsigned()
self.x25 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(25).GetValueAsUnsigned()
self.x26 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(26).GetValueAsUnsigned()
self.x27 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(27).GetValueAsUnsigned()
self.x28 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(28).GetValueAsUnsigned()
self.fp = saved_state.GetChildMemberWithName('fp').GetValueAsUnsigned()
self.lr = saved_state.GetChildMemberWithName('lr').GetValueAsUnsigned()
self.sp = saved_state.GetChildMemberWithName('sp').GetValueAsUnsigned()
self.pc = saved_state.GetChildMemberWithName('pc').GetValueAsUnsigned()
self.far = saved_state.GetChildMemberWithName('far').GetValueAsUnsigned()
self.cpsr = saved_state.GetChildMemberWithName('cpsr').GetValueAsUnsigned()
self.esr = saved_state.GetChildMemberWithName('esr').GetValueAsUnsigned()
return self
def ReadRegisterDataFromKernelStack(self, kstack_saved_state_addr, kernel_version):
saved_state = kernel_version.CreateValueFromExpression(None, '(struct arm_saved_state64 *) '+ str(kstack_saved_state_addr))
saved_state = saved_state.Dereference()
saved_state = PluginValue(saved_state)
self.ResetRegisterValues()
self.x0 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(0).GetValueAsUnsigned()
self.x1 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(1).GetValueAsUnsigned()
self.x2 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(2).GetValueAsUnsigned()
self.x3 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(3).GetValueAsUnsigned()
self.x4 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(4).GetValueAsUnsigned()
self.x5 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(5).GetValueAsUnsigned()
self.x6 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(6).GetValueAsUnsigned()
self.x7 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(7).GetValueAsUnsigned()
self.x8 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(8).GetValueAsUnsigned()
self.x9 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(9).GetValueAsUnsigned()
self.x10 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(10).GetValueAsUnsigned()
self.x11 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(11).GetValueAsUnsigned()
self.x12 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(12).GetValueAsUnsigned()
self.x13 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(13).GetValueAsUnsigned()
self.x14 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(14).GetValueAsUnsigned()
self.x15 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(15).GetValueAsUnsigned()
self.x16 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(16).GetValueAsUnsigned()
self.x17 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(17).GetValueAsUnsigned()
self.x18 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(18).GetValueAsUnsigned()
self.x19 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(19).GetValueAsUnsigned()
self.x20 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(20).GetValueAsUnsigned()
self.x21 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(21).GetValueAsUnsigned()
self.x22 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(22).GetValueAsUnsigned()
self.x23 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(23).GetValueAsUnsigned()
self.x24 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(24).GetValueAsUnsigned()
self.x25 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(25).GetValueAsUnsigned()
self.x26 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(26).GetValueAsUnsigned()
self.x27 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(27).GetValueAsUnsigned()
self.x28 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(28).GetValueAsUnsigned()
self.fp = saved_state.GetChildMemberWithName('fp').GetValueAsUnsigned()
self.lr = saved_state.GetChildMemberWithName('lr').GetValueAsUnsigned()
self.sp = saved_state.GetChildMemberWithName('sp').GetValueAsUnsigned()
self.pc = self.switch_context_address
self.far = saved_state.GetChildMemberWithName('far').GetValueAsUnsigned()
self.cpsr = saved_state.GetChildMemberWithName('cpsr').GetValueAsUnsigned()
self.esr = saved_state.GetChildMemberWithName('esr').GetValueAsUnsigned()
return self
def ReadRegisterDataFromContinuation(self, continuation_ptr):
self.ResetRegisterValues()
self.pc = continuation_ptr
return self
@classmethod
def GetRegisterInfo(cls, regnum):
if regnum < 0 or regnum > len(cls.register_info['registers']):
return ''
reginfo = cls.register_info['registers'][regnum]
retval = ''
for i in reginfo.keys():
v_str = str(reginfo[i])
if i == 'set':
v_str = 'General Purpose Registers'
retval += "%s:%s;" % (str(i), v_str)
return retval
class Armv7_RegisterSet(object):
""" register info set for armv7 32 bit architecture """
register_info = { 'sets' : ['GPR'],
'registers': [
{ 'name':'r0' , 'bitsize' : 32, 'offset' : 0, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 0, 'dwarf' : 0},
{ 'name':'r1' , 'bitsize' : 32, 'offset' : 4, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 1, 'dwarf' : 1},
{ 'name':'r2' , 'bitsize' : 32, 'offset' : 8, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 2, 'dwarf' : 2},
{ 'name':'r3' , 'bitsize' : 32, 'offset' : 12, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 3, 'dwarf' : 3},
{ 'name':'r4' , 'bitsize' : 32, 'offset' : 16, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 4, 'dwarf' : 4},
{ 'name':'r5' , 'bitsize' : 32, 'offset' : 20, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 5, 'dwarf' : 5},
{ 'name':'r6' , 'bitsize' : 32, 'offset' : 24, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 6, 'dwarf' : 6},
{ 'name':'r7' , 'bitsize' : 32, 'offset' : 28, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 7, 'dwarf' : 7},
{ 'name':'r8' , 'bitsize' : 32, 'offset' : 32, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 8, 'dwarf' : 8},
{ 'name':'r9' , 'bitsize' : 32, 'offset' : 36, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 9, 'dwarf' : 9},
{ 'name':'r10' , 'bitsize' : 32, 'offset' : 40, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':10, 'dwarf' :10},
{ 'name':'r11' , 'bitsize' : 32, 'offset' : 44, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':11, 'dwarf' :11, 'alt-name': 'fp', 'generic': 'fp'},
{ 'name':'r12' , 'bitsize' : 32, 'offset' : 48, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':12, 'dwarf' :12},
{ 'name':'sp' , 'bitsize' : 32, 'offset' : 52, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':13, 'dwarf' :13, 'generic': 'sp'},
{ 'name':'lr' , 'bitsize' : 32, 'offset' : 56, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':14, 'dwarf' :14, 'generic': 'lr'},
{ 'name':'pc' , 'bitsize' : 32, 'offset' : 60, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':15, 'dwarf' :15, 'generic': 'pc'},
{ 'name':'cpsr' , 'bitsize' : 32, 'offset' : 64, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':16, 'dwarf' :16, 'generic':'flags'},
{ 'name':'fsr' , 'bitsize' : 32, 'offset' : 68, 'encoding':'uint', 'format':'hex', 'set':0},
{ 'name':'far' , 'bitsize' : 32, 'offset' : 72, 'encoding':'uint', 'format':'hex', 'set':0}
]
}
def __init__(self):
self.switch_context_address = osplugin_target_obj.FindSymbols('load_reg')[0].GetSymbol().GetStartAddress().GetLoadAddress(osplugin_target_obj) + 8
self.ResetRegisterValues()
@classmethod
def GetRegisterInfo(cls, regnum):
if regnum < 0 or regnum > len(cls.register_info['registers']):
return ''
reginfo = cls.register_info['registers'][regnum]
retval = ''
for i in reginfo.keys():
v_str = str(reginfo[i])
if i == 'set':
v_str = 'General Purpose Registers'
retval += "%s:%s;" % (str(i), v_str)
return retval
def ResetRegisterValues(self):
self.r0 = 0
self.r1 = 0
self.r2 = 0
self.r3 = 0
self.r4 = 0
self.r5 = 0
self.r6 = 0
self.r7 = 0
self.r8 = 0
self.r9 = 0
self.r10 = 0
self.r11 = 0
self.r12 = 0
self.sp = 0
self.lr = 0
self.pc = 0
self.cpsr = 0
self.fsr = 0
self.far = 0
def __str__(self):
return """
r0 = {o.r0: <#010x}
r1 = {o.r1: <#010x}
r2 = {o.r2: <#010x}
r3 = {o.r3: <#010x}
r4 = {o.r4: <#010x}
r5 = {o.r5: <#010x}
r6 = {o.r6: <#010x}
r7 = {o.r7: <#010x}
r8 = {o.r8: <#010x}
r9 = {o.r9: <#010x}
r10 = {o.r10: <#010x}
r11 = {o.r11: <#010x}
r12 = {o.r12: <#010x}
sp = {o.sp: <#010x}
lr = {o.lr: <#010x}
pc = {o.pc: <#010x}
cpsr = {o.cpsr: <#010x}
fsr = {o.fsr : <#010x}
far = {o.far : <#010x}
""".format(o=self)
def GetPackedRegisterState(self):
return struct.pack('19I', self.r0, self.r1, self.r2, self.r3,
self.r4, self.r5, self.r6, self.r7,
self.r8, self.r9, self.r10, self.r11,
self.r12, self.sp, self.lr, self.pc,
self.cpsr, self.fsr, self.far)
def ReadRegisterDataFromKDPSavedState(self, kdp_state, kernel_version):
saved_state = kernel_version.CreateValueFromExpression(None, '(struct arm_saved_state *) ' + str(kdp_state.GetValueAsUnsigned()))
saved_state = saved_state.Dereference()
saved_state = PluginValue(saved_state)
self.ResetRegisterValues()
self.r0 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(0).GetValueAsUnsigned()
self.r1 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(1).GetValueAsUnsigned()
self.r2 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(2).GetValueAsUnsigned()
self.r3 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(3).GetValueAsUnsigned()
self.r4 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(4).GetValueAsUnsigned()
self.r5 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(5).GetValueAsUnsigned()
self.r6 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(6).GetValueAsUnsigned()
self.r7 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(7).GetValueAsUnsigned()
self.r8 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(8).GetValueAsUnsigned()
self.r9 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(9).GetValueAsUnsigned()
self.r10 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(10).GetValueAsUnsigned()
self.r11 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(11).GetValueAsUnsigned()
self.r12 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(12).GetValueAsUnsigned()
self.sp = saved_state.GetChildMemberWithName('sp').GetValueAsUnsigned()
self.lr = saved_state.GetChildMemberWithName('lr').GetValueAsUnsigned()
self.pc = saved_state.GetChildMemberWithName('pc').GetValueAsUnsigned()
self.cpsr = saved_state.GetChildMemberWithName('cpsr').GetValueAsUnsigned()
self.fsr = saved_state.GetChildMemberWithName('fsr').GetValueAsUnsigned()
self.far = saved_state.GetChildMemberWithName('far').GetValueAsUnsigned()
return self
def ReadRegisterDataFromKernelStack(self, kstack_saved_state_addr, kernel_version):
saved_state = kernel_version.CreateValueFromExpression(None, '(struct arm_saved_state *) '+ str(kstack_saved_state_addr))
saved_state = saved_state.Dereference()
saved_state = PluginValue(saved_state)
self.ResetRegisterValues()
self.r0 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(0).GetValueAsUnsigned()
self.r1 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(1).GetValueAsUnsigned()
self.r2 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(2).GetValueAsUnsigned()
self.r3 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(3).GetValueAsUnsigned()
self.r4 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(4).GetValueAsUnsigned()
self.r5 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(5).GetValueAsUnsigned()
self.r6 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(6).GetValueAsUnsigned()
self.r7 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(7).GetValueAsUnsigned()
self.r8 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(8).GetValueAsUnsigned()
self.r9 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(9).GetValueAsUnsigned()
self.r10 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(10).GetValueAsUnsigned()
self.r11 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(11).GetValueAsUnsigned()
self.r12 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(12).GetValueAsUnsigned()
self.sp = saved_state.GetChildMemberWithName('sp').GetValueAsUnsigned()
self.lr = saved_state.GetChildMemberWithName('lr').GetValueAsUnsigned()
self.pc = self.switch_context_address
self.cpsr = saved_state.GetChildMemberWithName('cpsr').GetValueAsUnsigned()
self.fsr = saved_state.GetChildMemberWithName('fsr').GetValueAsUnsigned()
self.far = saved_state.GetChildMemberWithName('far').GetValueAsUnsigned()
return self
def ReadRegisterDataFromContinuation(self, continuation_ptr):
self.ResetRegisterValues()
self.pc = continuation_ptr
return self
class I386_RegisterSet(object):
""" register info set for i386 architecture
"""
register_info = { 'sets' : ['GPR'],
'registers': [
{ 'name': 'eax' , 'bitsize': 32, 'offset' : 0, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 0, 'dwarf': 0},
{ 'name': 'ebx' , 'bitsize': 32, 'offset' : 4, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 3, 'dwarf': 3},
{ 'name': 'ecx' , 'bitsize': 32, 'offset' : 8, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 1, 'dwarf': 1},
{ 'name': 'edx' , 'bitsize': 32, 'offset' :12, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 2, 'dwarf': 2},
{ 'name': 'edi' , 'bitsize': 32, 'offset' :16, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 7, 'dwarf': 7},
{ 'name': 'esi' , 'bitsize': 32, 'offset' :20, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 6, 'dwarf': 6},
{ 'name': 'ebp' , 'bitsize': 32, 'offset' :24, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 4, 'dwarf': 5, 'generic': 'fp', 'alt-name': 'fp'},
{ 'name': 'esp' , 'bitsize': 32, 'offset' :28, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 5, 'dwarf': 4, 'generic': 'sp', 'alt-name': 'sp'},
{ 'name': 'ss' , 'bitsize': 32, 'offset' :32, 'encoding': 'uint' , 'format':'hex' , 'set': 0},
{ 'name': 'eflags', 'bitsize': 32, 'offset' :36, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 9, 'dwarf': 9, 'generic': 'flags'},
{ 'name': 'eip' , 'bitsize': 32, 'offset' :40, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' :8, 'dwarf':8, 'generic': 'pc', 'alt-name': 'pc'},
{ 'name': 'cs' , 'bitsize': 32, 'offset' :44, 'encoding': 'uint' , 'format':'hex' , 'set': 0},
{ 'name': 'ds' , 'bitsize': 32, 'offset' :48, 'encoding': 'uint' , 'format':'hex' , 'set': 0},
{ 'name': 'es' , 'bitsize': 32, 'offset' :52, 'encoding': 'uint' , 'format':'hex' , 'set': 0},
{ 'name': 'fs' , 'bitsize': 32, 'offset' :56, 'encoding': 'uint' , 'format':'hex' , 'set': 0},
{ 'name': 'gs' , 'bitsize': 32, 'offset' :60, 'encoding': 'uint' , 'format':'hex' , 'set': 0},
]
}
def __init__(self):
self.ResetRegisterValues()
@classmethod
def GetRegisterInfo(cls, regnum):
if regnum < 0 or regnum > len(cls.register_info['registers']):
return ''
reginfo = cls.register_info['registers'][regnum]
retval = ''
for i in reginfo.keys():
v_str = str(reginfo[i])
if i == 'set':
v_str = 'General Purpose Registers'
retval += "%s:%s;" % (str(i), v_str)
return retval
def ResetRegisterValues(self):
""" set all registers to zero """
self.eax = 0
self.ebx = 0
self.ecx = 0
self.edx = 0
self.edi = 0
self.esi = 0
self.ebp = 0
self.esp = 0
self.ss = 0
self.eflags = 0
self.eip = 0
self.cs = 0
self.ds = 0
self.es = 0
self.fs = 0
self.gs = 0
def __str__(self):
return """
eax = {o.eax: #010x}
ebx = {o.ebx: #010x}
ecx = {o.ecx: #010x}
edx = {o.edx: #010x}
edi = {o.edi: #010x}
esi = {o.esi: #010x}
ebp = {o.ebp: #010x}
esp = {o.esp: #010x}
ss = {o.ss: #010x}
eflags = {o.eflags: #010x}
eip = {o.eip: #010x}
cs = {o.cs: #010x}
ds = {o.ds: #010x}
es = {o.es: #010x}
fs = {o.fs: #010x}
gs = {o.gs: #010x}
""".format(o=self)
def GetPackedRegisterState(self):
""" get a struct.pack register data """
return struct.pack('16I', self.eax, self.ebx, self.ecx,
self.edx, self.edi, self.esi,
self.ebp, self.esp, self.ss,
self.eflags, self.eip, self.cs,
self.ds, self.es, self.fs, self.gs
)
def ReadRegisterDataFromKDPSavedState(self, kdp_state, kernel_version):
""" to be implemented"""
return None
def ReadRegisterDataFromKernelStack(self, kstack_saved_state_addr, kernel_version):
""" to be implemented """
return None
def ReadRegisterDataFromContinuation(self, continuation_ptr):
self.ResetRegisterValues()
self.eip = continuation_ptr
return self
class X86_64RegisterSet(object):
""" register info set for x86_64 architecture """
register_info = { 'sets' : ['GPR'],
'registers': [
{ 'name':'rax' , 'bitsize' : 64, 'offset' : 0, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 0, 'dwarf' : 0},
{ 'name':'rbx' , 'bitsize' : 64, 'offset' : 8, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 3, 'dwarf' : 3},
{ 'name':'rcx' , 'bitsize' : 64, 'offset' : 16, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 2, 'dwarf' : 2, 'generic':'arg4', 'alt-name':'arg4', },
{ 'name':'rdx' , 'bitsize' : 64, 'offset' : 24, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 1, 'dwarf' : 1, 'generic':'arg3', 'alt-name':'arg3', },
{ 'name':'rdi' , 'bitsize' : 64, 'offset' : 32, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 5, 'dwarf' : 5, 'generic':'arg1', 'alt-name':'arg1', },
{ 'name':'rsi' , 'bitsize' : 64, 'offset' : 40, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 4, 'dwarf' : 4, 'generic':'arg2', 'alt-name':'arg2', },
{ 'name':'rbp' , 'bitsize' : 64, 'offset' : 48, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 6, 'dwarf' : 6, 'generic':'fp' , 'alt-name':'fp', },
{ 'name':'rsp' , 'bitsize' : 64, 'offset' : 56, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 7, 'dwarf' : 7, 'generic':'sp' , 'alt-name':'sp', },
{ 'name':'r8' , 'bitsize' : 64, 'offset' : 64, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 8, 'dwarf' : 8, 'generic':'arg5', 'alt-name':'arg5', },
{ 'name':'r9' , 'bitsize' : 64, 'offset' : 72, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 9, 'dwarf' : 9, 'generic':'arg6', 'alt-name':'arg6', },
{ 'name':'r10' , 'bitsize' : 64, 'offset' : 80, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 10, 'dwarf' : 10},
{ 'name':'r11' , 'bitsize' : 64, 'offset' : 88, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 11, 'dwarf' : 11},
{ 'name':'r12' , 'bitsize' : 64, 'offset' : 96, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 12, 'dwarf' : 12},
{ 'name':'r13' , 'bitsize' : 64, 'offset' : 104, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 13, 'dwarf' : 13},
{ 'name':'r14' , 'bitsize' : 64, 'offset' : 112, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 14, 'dwarf' : 14},
{ 'name':'r15' , 'bitsize' : 64, 'offset' : 120, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 15, 'dwarf' : 15},
{ 'name':'rip' , 'bitsize' : 64, 'offset' : 128, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 16, 'dwarf' : 16, 'generic':'pc', 'alt-name':'pc' },
{ 'name':'rflags' , 'bitsize' : 64, 'offset' : 136, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'generic':'flags', 'alt-name':'flags' },
{ 'name':'cs' , 'bitsize' : 64, 'offset' : 144, 'encoding':'uint' , 'format':'hex' , 'set': 0 },
{ 'name':'fs' , 'bitsize' : 64, 'offset' : 152, 'encoding':'uint' , 'format':'hex' , 'set': 0 },
{ 'name':'gs' , 'bitsize' : 64, 'offset' : 160, 'encoding':'uint' , 'format':'hex' , 'set': 0 },
]
}
def __init__(self):
self.ResetRegisterValues()
@classmethod
def GetRegisterInfo(cls, regnum):
if regnum < 0 or regnum > len(cls.register_info['registers']):
return ''
reginfo = cls.register_info['registers'][regnum]
retval = ''
for i in reginfo.keys():
v_str = str(reginfo[i])
if i == 'set':
v_str = 'General Purpose Registers'
retval += "%s:%s;" % (str(i), v_str)
return retval
def ResetRegisterValues(self):
""" set all the registers to zero. """
self.rax = 0
self.rbx = 0
self.rcx = 0
self.rdx = 0
self.rdi = 0
self.rsi = 0
self.rbp = 0
self.rsp = 0
self.r8 = 0
self.r9 = 0
self.r10 = 0
self.r11 = 0
self.r12 = 0
self.r13 = 0
self.r14 = 0
self.r15 = 0
self.rip = 0
self.rflags = 0
self.cs = 0
self.fs = 0
self.gs = 0
def __str__(self):
return """
rax = {o.rax: <#018x}
rbx = {o.rbx: <#018x}
rcx = {o.rcx: <#018x}
rdx = {o.rdx: <#018x}
rdi = {o.rdi: <#018x}
rsi = {o.rsi: <#018x}
rbp = {o.rbp: <#018x}
rsp = {o.rsp: <#018x}
r8 = {o.r8: <#018x}
r9 = {o.r9: <#018x}
r10 = {o.r10: <#018x}
r11 = {o.r11: <#018x}
r12 = {o.r12: <#018x}
r13 = {o.r13: <#018x}
r14 = {o.r14: <#018x}
r15 = {o.r15: <#018x}
rip = {o.rip: <#018x}
rflags = {o.rflags: <#018x}
cs = {o.cs: <#018x}
fs = {o.fs: <#018x}
gs = {o.gs: <#018x}
""".format(o=self)
def GetPackedRegisterState(self):
""" get a struct.pack register data for passing to C constructs """
return struct.pack('21Q', self.rax, self.rbx, self.rcx, self.rdx, self.rdi,
self.rsi, self.rbp, self.rsp, self.r8, self.r9,
self.r10, self.r11, self.r12, self.r13, self.r14,
self.r15, self.rip, self.rflags, self.cs, self.fs, self.gs)
def ReadRegisterDataFromKDPSavedState(self, kdp_state, kernel_version):
saved_state = kernel_version.CreateValueFromExpression(None, '(struct x86_saved_state64 *) '+ str(kdp_state.GetValueAsUnsigned()))
saved_state = saved_state.Dereference()
saved_state = PluginValue(saved_state)
self.ResetRegisterValues()
self.rdi = saved_state.GetChildMemberWithName('rdi').GetValueAsUnsigned()
self.rsi = saved_state.GetChildMemberWithName('rsi').GetValueAsUnsigned()
self.rdx = saved_state.GetChildMemberWithName('rdx').GetValueAsUnsigned()
self.r10 = saved_state.GetChildMemberWithName('r10').GetValueAsUnsigned()
self.r8 = saved_state.GetChildMemberWithName('r8').GetValueAsUnsigned()
self.r9 = saved_state.GetChildMemberWithName('r9').GetValueAsUnsigned()
self.r15 = saved_state.GetChildMemberWithName('r15').GetValueAsUnsigned()
self.r14 = saved_state.GetChildMemberWithName('r14').GetValueAsUnsigned()
self.r13 = saved_state.GetChildMemberWithName('r13').GetValueAsUnsigned()
self.r12 = saved_state.GetChildMemberWithName('r12').GetValueAsUnsigned()
self.r11 = saved_state.GetChildMemberWithName('r11').GetValueAsUnsigned()
self.rbp = saved_state.GetChildMemberWithName('rbp').GetValueAsUnsigned()
self.rbx = saved_state.GetChildMemberWithName('rbx').GetValueAsUnsigned()
self.rcx = saved_state.GetChildMemberWithName('rcx').GetValueAsUnsigned()
self.rax = saved_state.GetChildMemberWithName('rax').GetValueAsUnsigned()
self.rip = saved_state.GetChildMemberWithName('isf').GetChildMemberWithName('rip').GetValueAsUnsigned()
self.rflags = saved_state.GetChildMemberWithName('isf').GetChildMemberWithName('rflags').GetValueAsUnsigned()
self.rsp = saved_state.GetChildMemberWithName('isf').GetChildMemberWithName('rsp').GetValueAsUnsigned()
return self
def ReadRegisterDataFromKernelStack(self, kstack_saved_state_addr, kernel_version):
saved_state = kernel_version.CreateValueFromExpression(None, '(struct x86_kernel_state *) '+ str(kstack_saved_state_addr))
saved_state = saved_state.Dereference()
saved_state = PluginValue(saved_state)
self.ResetRegisterValues()
self.rbx = saved_state.GetChildMemberWithName('k_rbx').GetValueAsUnsigned()
self.rsp = saved_state.GetChildMemberWithName('k_rsp').GetValueAsUnsigned()
self.rbp = saved_state.GetChildMemberWithName('k_rbp').GetValueAsUnsigned()
self.r12 = saved_state.GetChildMemberWithName('k_r12').GetValueAsUnsigned()
self.r13 = saved_state.GetChildMemberWithName('k_r13').GetValueAsUnsigned()
self.r14 = saved_state.GetChildMemberWithName('k_r14').GetValueAsUnsigned()
self.r15 = saved_state.GetChildMemberWithName('k_r15').GetValueAsUnsigned()
self.rip = saved_state.GetChildMemberWithName('k_rip').GetValueAsUnsigned()
return self
def ReadRegisterDataFromContinuation(self, continuation_ptr):
self.ResetRegisterValues()
self.rip = continuation_ptr
return self
def IterateQueue(queue_head, element_ptr_type, element_field_name):
""" iterate over a queue in kernel of type queue_head_t. refer to osfmk/kern/queue.h
params:
queue_head - lldb.SBValue : Value object for queue_head.
element_type - lldb.SBType : a pointer type of the element 'next' points to. Typically its structs like thread, task etc..
element_field_name - str : name of the field in target struct.
returns:
A generator does not return. It is used for iterating.
SBValue : an object thats of type (element_type) queue_head->next. Always a pointer object
"""
queue_head_addr = 0x0
if queue_head.TypeIsPointerType():
queue_head_addr = queue_head.GetValueAsUnsigned()
else:
queue_head_addr = queue_head.GetAddress().GetLoadAddress(osplugin_target_obj)
cur_elt = queue_head.GetChildMemberWithName('next')
while True:
if not cur_elt.IsValid() or cur_elt.GetValueAsUnsigned() == 0 or cur_elt.GetValueAsUnsigned() == queue_head_addr:
break
elt = cur_elt.Cast(element_ptr_type)
yield elt
cur_elt = elt.GetChildMemberWithName(element_field_name).GetChildMemberWithName('next')
def GetUniqueSessionID(process_obj):
""" Create a unique session identifier.
params:
process_obj: lldb.SBProcess object refering to connected process.
returns:
int - a unique number identified by processid and stopid.
"""
session_key_str = ""
if hasattr(process_obj, "GetUniqueID"):
session_key_str += str(process_obj.GetUniqueID()) + ":"
else:
session_key_str += "0:"
if hasattr(process_obj, "GetStopID"):
session_key_str += str(process_obj.GetStopID())
else:
session_key_str +="1"
return hash(session_key_str)
(archX86_64, archARMv7, archI386, archARMv8) = ("x86_64", "armv7", "i386", "arm64")
class OperatingSystemPlugIn(object):
"""Class that provides data for an instance of a LLDB 'OperatingSystemPython' plug-in class"""
def __init__(self, process):
'''Initialization needs a valid.SBProcess object'''
self.process = None
self.registers = None
self.threads = None
self.thread_cache = {}
self.current_session_id = 0
self.kdp_thread = None
if type(process) is lldb.SBProcess and process.IsValid():
global osplugin_target_obj
self.process = process
self._target = process.target
osplugin_target_obj = self._target
self.current_session_id = GetUniqueSessionID(self.process)
self.version = self._target.FindGlobalVariables('version', 1).GetValueAtIndex(0)
self.kernel_stack_size = self._target.FindGlobalVariables('kernel_stack_size', 1).GetValueAtIndex(0).GetValueAsUnsigned()
self.kernel_context_size = 0
self.connected_over_kdp = False
self.connected_to_debugserver = True
plugin_string = self.process.GetPluginName().lower()
if plugin_string.find("kdp") >=0:
self.connected_over_kdp = True
self.connected_to_debugserver = False
self.threads = None triple = self.process.target.triple
arch = triple.split('-')[0].lower()
self.target_arch = ""
self.kernel_context_size = 0
if arch == archX86_64 :
self.target_arch = archX86_64
print "Target arch: x86_64"
self.register_set = X86_64RegisterSet()
self.kernel_context_size = self._target.FindFirstType('x86_kernel_state').GetByteSize()
self.kernel_thread_state_size = self._target.FindFirstType('struct thread_kernel_state').GetByteSize()
elif arch.startswith(archARMv7) :
self.target_arch = arch
print "Target arch: " + self.target_arch
self.register_set = Armv7_RegisterSet()
elif arch.startswith(archARMv8):
self.target_arch = arch
print "Target arch: " + self.target_arch
self.register_set = Armv8_RegisterSet()
if not self.connected_over_kdp :
if plugin_string.find('core') >= 0 and self.target_arch == archX86_64:
self.connected_to_debugserver = False
self.registers = self.register_set.register_info
if self.connected_to_debugserver:
print "Connected to live debugserver or arm core. Will associate on-core threads to registers reported by server."
else:
print "Instantiating threads completely from saved state in memory."
def create_thread(self, tid, context):
if tid == 0xdeadbeef :
tid = 0xdead0000 | (context & ~0xffff0000)
tid = tid & 0xdeadffff
thread_obj = { 'tid' : tid,
'ptr' : context,
'name' : 'switchtoregs' + hex(context),
'queue' : 'None',
'state' : 'stopped',
'stop_reason' : 'none'
}
self.thread_cache[tid] = thread_obj
return thread_obj
th_ptr = context
th = self.version.CreateValueFromExpression(str(th_ptr),'(struct thread *)' + str(th_ptr))
thread_id = th.GetChildMemberWithName('thread_id').GetValueAsUnsigned()
if tid != thread_id:
print "FATAL ERROR: Creating thread from memory 0x%x with tid in mem=%d when requested tid = %d " % (context, thread_id, tid)
return None
thread_obj = { 'tid' : thread_id,
'ptr' : th.GetValueAsUnsigned(),
'name' : hex(th.GetValueAsUnsigned()).rstrip('L'),
'queue' : hex(th.GetChildMemberWithName('wait_queue').GetValueAsUnsigned()).rstrip('L'),
'state' : 'stopped',
'stop_reason' : 'none'
}
if self.current_session_id != GetUniqueSessionID(self.process):
self.thread_cache = {}
self.current_session_id = GetUniqueSessionID(self.process)
self.thread_cache[tid] = thread_obj
return thread_obj
def get_thread_info(self):
self.kdp_thread = None
self.kdp_state = None
if self.connected_over_kdp :
kdp = self._target.FindGlobalVariables('kdp',1).GetValueAtIndex(0)
kdp_state = kdp.GetChildMemberWithName('saved_state')
kdp_thread = kdp.GetChildMemberWithName('kdp_thread')
if kdp_thread and kdp_thread.GetValueAsUnsigned() != 0:
self.kdp_thread = kdp_thread
self.kdp_state = kdp_state
kdp_thid = kdp_thread.GetChildMemberWithName('thread_id').GetValueAsUnsigned()
self.create_thread(kdp_thid, kdp_thread.GetValueAsUnsigned())
self.thread_cache[kdp_thid]['core']=0
retval = [self.thread_cache[kdp_thid]]
return retval
else:
print "FATAL FAILURE: Unable to find kdp_thread state for this connection."
return []
num_threads = self._target.FindGlobalVariables('threads_count',1).GetValueAtIndex(0).GetValueAsUnsigned()
if num_threads <=0 :
return []
self.current_session_id = GetUniqueSessionID(self.process)
self.threads = []
self.thread_cache = {}
self.processors = []
try:
processor_list_val = PluginValue(self._target.FindGlobalVariables('processor_list',1).GetValueAtIndex(0))
while processor_list_val.IsValid() and processor_list_val.GetValueAsUnsigned() !=0 :
th = processor_list_val.GetChildMemberWithName('active_thread')
th_id = th.GetChildMemberWithName('thread_id').GetValueAsUnsigned()
cpu_id = processor_list_val.GetChildMemberWithName('cpu_id').GetValueAsUnsigned()
self.processors.append({'active_thread': th.GetValueAsUnsigned(), 'cpu_id': cpu_id})
self.create_thread(th_id, th.GetValueAsUnsigned())
if self.connected_to_debugserver:
self.thread_cache[th_id]['core'] = cpu_id
self.thread_cache[th_id]['queue'] = "cpu-%d" % int(cpu_id)
nth = self.thread_cache[th_id]
self.threads.append(nth)
self.thread_cache[nth['tid']] = nth
processor_list_val = processor_list_val.GetChildMemberWithName('processor_list')
except KeyboardInterrupt, ke:
print "OS Plugin Interrupted during thread loading process. \nWARNING:Thread registers and backtraces may not be accurate."
return self.threads
if hasattr(self.process, 'CreateOSPluginThread'):
return self.threads
try:
thread_q_head = self._target.FindGlobalVariables('threads', 1).GetValueAtIndex(0)
thread_type = self._target.FindFirstType('thread')
thread_ptr_type = thread_type.GetPointerType()
for th in IterateQueue(thread_q_head, thread_ptr_type, 'threads'):
th_id = th.GetChildMemberWithName('thread_id').GetValueAsUnsigned()
self.create_thread(th_id, th.GetValueAsUnsigned())
nth = self.thread_cache[th_id]
for cputhread in self.processors:
if cputhread['active_thread'] == nth['ptr']:
nth['core'] = cputhread['cpu_id']
self.threads.append( nth )
except KeyboardInterrupt, ke:
print "OS Plugin Interrupted during thread loading process. \nWARNING:Thread registers and backtraces may not be accurate."
return self.threads
return self.threads
def get_register_info(self):
if self.registers == None:
print "Register Information not found "
return self.register_set.register_info
def get_register_data(self, tid):
thobj = None
try:
regs = self.register_set
if self.current_session_id != GetUniqueSessionID(self.process):
self.thread_cache = {}
self.current_session_id = GetUniqueSessionID(self.process)
if tid in self.thread_cache.keys():
if self.thread_cache[tid]['name'].find('switchtoregs') == 0:
savedstateobj = self.version.CreateValueFromExpression(None, '(uintptr_t *) ' + str(self.thread_cache[tid]['ptr']))
regs.ReadRegisterDataFromKDPSavedState(savedstateobj, self.version)
return regs.GetPackedRegisterState()
thobj = self.version.CreateValueFromExpression(self.thread_cache[tid]['name'], '(struct thread *)' + str(self.thread_cache[tid]['ptr']))
if thobj == None :
print "FATAL ERROR: Could not find thread with id %d" % tid
regs.ResetRegisterValues()
return regs.GetPackedRegisterState()
if self.kdp_thread and self.kdp_thread.GetValueAsUnsigned() == thobj.GetValueAsUnsigned():
regs.ReadRegisterDataFromKDPSavedState(self.kdp_state, self.version)
return regs.GetPackedRegisterState()
if int(PluginValue(thobj).GetChildMemberWithName('kernel_stack').GetValueAsUnsigned()) != 0 :
if self.target_arch == archX86_64 :
saved_state_addr = PluginValue(thobj).GetChildMemberWithName('kernel_stack').GetValueAsUnsigned() + self.kernel_stack_size - self.kernel_thread_state_size
regs.ReadRegisterDataFromKernelStack(saved_state_addr, self.version)
return regs.GetPackedRegisterState()
elif self.target_arch.startswith(archARMv7) and int(PluginValue(thobj).GetChildMemberWithName('machine').GetChildMemberWithName('kstackptr').GetValueAsUnsigned()) != 0:
saved_state_addr = PluginValue(thobj).GetChildMemberWithName('machine').GetChildMemberWithName('kstackptr').GetValueAsUnsigned()
regs.ReadRegisterDataFromKernelStack(saved_state_addr, self.version)
return regs.GetPackedRegisterState()
elif self.target_arch.startswith(archARMv8) and int(PluginValue(thobj).GetChildMemberWithName('machine').GetChildMemberWithName('kstackptr').GetValueAsUnsigned()) != 0:
saved_state_addr = PluginValue(thobj).GetChildMemberWithName('machine').GetChildMemberWithName('kstackptr').GetValueAsUnsigned()
arm_ctx = PluginValue(self.version.CreateValueFromExpression(None, '(struct arm_context *) ' + str(saved_state_addr)))
ss_64_addr = arm_ctx.GetChildMemberWithName('ss').GetChildMemberWithName('uss').GetChildMemberWithName('ss_64').GetLoadAddress()
regs.ReadRegisterDataFromKernelStack(ss_64_addr, self.version)
return regs.GetPackedRegisterState()
elif self.target_arch == archX86_64 or self.target_arch.startswith(archARMv7) or self.target_arch.startswith(archARMv8):
regs.ReadRegisterDataFromContinuation( PluginValue(thobj).GetChildMemberWithName('continuation').GetValueAsUnsigned())
return regs.GetPackedRegisterState()
except KeyboardInterrupt, ke:
print "OS Plugin Interrupted during thread register load. \nWARNING:Thread registers and backtraces may not be accurate. for tid = %d" % tid
regs.ResetRegisterValues()
print "FATAL ERROR: Failed to get register state for thread id 0x%x " % tid
print thobj
return regs.GetPackedRegisterState()