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# DExTer : Debugging Experience Tester
# ~~~~~~ ~ ~~ ~ ~~
#
# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
from ctypes import *
from functools import partial
from .utils import *
# UUID For SystemObjects4 interface.
DebugSystemObjects4IID = IID(
0x489468E6,
0x7D0F,
0x4AF5,
IID_Data4_Type(0x87, 0xAB, 0x25, 0x20, 0x74, 0x54, 0xD5, 0x53),
)
class IDebugSystemObjects4(Structure):
pass
class IDebugSystemObjects4Vtbl(Structure):
wrp = partial(WINFUNCTYPE, c_long, POINTER(IDebugSystemObjects4))
ids_getnumberprocesses = wrp(POINTER(c_ulong))
ids_getprocessidsbyindex = wrp(c_ulong, c_ulong, c_ulong_p, c_ulong_p)
ids_setcurrentprocessid = wrp(c_ulong)
ids_getnumberthreads = wrp(c_ulong_p)
ids_getthreadidsbyindex = wrp(c_ulong, c_ulong, c_ulong_p, c_ulong_p)
ids_setcurrentthreadid = wrp(c_ulong)
_fields_ = [
("QueryInterface", c_void_p),
("AddRef", c_void_p),
("Release", c_void_p),
("GetEventThread", c_void_p),
("GetEventProcess", c_void_p),
("GetCurrentThreadId", c_void_p),
("SetCurrentThreadId", ids_setcurrentthreadid),
("GetCurrentProcessId", c_void_p),
("SetCurrentProcessId", ids_setcurrentprocessid),
("GetNumberThreads", ids_getnumberthreads),
("GetTotalNumberThreads", c_void_p),
("GetThreadIdsByIndex", ids_getthreadidsbyindex),
("GetThreadIdByProcessor", c_void_p),
("GetCurrentThreadDataOffset", c_void_p),
("GetThreadIdByDataOffset", c_void_p),
("GetCurrentThreadTeb", c_void_p),
("GetThreadIdByTeb", c_void_p),
("GetCurrentThreadSystemId", c_void_p),
("GetThreadIdBySystemId", c_void_p),
("GetCurrentThreadHandle", c_void_p),
("GetThreadIdByHandle", c_void_p),
("GetNumberProcesses", ids_getnumberprocesses),
("GetProcessIdsByIndex", ids_getprocessidsbyindex),
("GetCurrentProcessDataOffset", c_void_p),
("GetProcessIdByDataOffset", c_void_p),
("GetCurrentProcessPeb", c_void_p),
("GetProcessIdByPeb", c_void_p),
("GetCurrentProcessSystemId", c_void_p),
("GetProcessIdBySystemId", c_void_p),
("GetCurrentProcessHandle", c_void_p),
("GetProcessIdByHandle", c_void_p),
("GetCurrentProcessExecutableName", c_void_p),
("GetCurrentProcessUpTime", c_void_p),
("GetImplicitThreadDataOffset", c_void_p),
("SetImplicitThreadDataOffset", c_void_p),
("GetImplicitProcessDataOffset", c_void_p),
("SetImplicitProcessDataOffset", c_void_p),
("GetEventSystem", c_void_p),
("GetCurrentSystemId", c_void_p),
("SetCurrentSystemId", c_void_p),
("GetNumberSystems", c_void_p),
("GetSystemIdsByIndex", c_void_p),
("GetTotalNumberThreadsAndProcesses", c_void_p),
("GetCurrentSystemServer", c_void_p),
("GetSystemByServer", c_void_p),
("GetCurrentSystemServerName", c_void_p),
("GetCurrentProcessExecutableNameWide", c_void_p),
("GetCurrentSystemServerNameWide", c_void_p),
]
IDebugSystemObjects4._fields_ = [("lpVtbl", POINTER(IDebugSystemObjects4Vtbl))]
class SysObjects(object):
def __init__(self, sysobjects):
self.ptr = sysobjects
self.sysobjects = sysobjects.contents
self.vt = self.sysobjects.lpVtbl.contents
# Keep a handy ulong for passing into C methods.
self.ulong = c_ulong()
def GetNumberSystems(self):
res = self.vt.GetNumberSystems(self.sysobjects, byref(self.ulong))
aborter(res, "GetNumberSystems")
return self.ulong.value
def GetNumberProcesses(self):
res = self.vt.GetNumberProcesses(self.sysobjects, byref(self.ulong))
aborter(res, "GetNumberProcesses")
return self.ulong.value
def GetNumberThreads(self):
res = self.vt.GetNumberThreads(self.sysobjects, byref(self.ulong))
aborter(res, "GetNumberThreads")
return self.ulong.value
def GetTotalNumberThreadsAndProcesses(self):
tthreads = c_ulong()
tprocs = c_ulong()
pulong3 = c_ulong()
res = self.vt.GetTotalNumberThreadsAndProcesses(
self.sysobjects,
byref(tthreads),
byref(tprocs),
byref(pulong3),
byref(pulong3),
byref(pulong3),
)
aborter(res, "GettotalNumberThreadsAndProcesses")
return tthreads.value, tprocs.value
def GetCurrentProcessId(self):
res = self.vt.GetCurrentProcessId(self.sysobjects, byref(self.ulong))
aborter(res, "GetCurrentProcessId")
return self.ulong.value
def SetCurrentProcessId(self, sysid):
res = self.vt.SetCurrentProcessId(self.sysobjects, sysid)
aborter(res, "SetCurrentProcessId")
return
def GetCurrentThreadId(self):
res = self.vt.GetCurrentThreadId(self.sysobjects, byref(self.ulong))
aborter(res, "GetCurrentThreadId")
return self.ulong.value
def SetCurrentThreadId(self, sysid):
res = self.vt.SetCurrentThreadId(self.sysobjects, sysid)
aborter(res, "SetCurrentThreadId")
return
def GetProcessIdsByIndex(self):
num_processes = self.GetNumberProcesses()
if num_processes == 0:
return []
engineids = (c_ulong * num_processes)()
pids = (c_ulong * num_processes)()
for x in range(num_processes):
engineids[x] = DEBUG_ANY_ID
pids[x] = DEBUG_ANY_ID
res = self.vt.GetProcessIdsByIndex(
self.sysobjects, 0, num_processes, engineids, pids
)
aborter(res, "GetProcessIdsByIndex")
return list(zip(engineids, pids))
def GetThreadIdsByIndex(self):
num_threads = self.GetNumberThreads()
if num_threads == 0:
return []
engineids = (c_ulong * num_threads)()
tids = (c_ulong * num_threads)()
for x in range(num_threads):
engineids[x] = DEBUG_ANY_ID
tids[x] = DEBUG_ANY_ID
# Zero -> start index
res = self.vt.GetThreadIdsByIndex(
self.sysobjects, 0, num_threads, engineids, tids
)
aborter(res, "GetThreadIdsByIndex")
return list(zip(engineids, tids))
def GetCurThreadHandle(self):
pulong64 = c_ulonglong()
res = self.vt.GetCurrentThreadHandle(self.sysobjects, byref(pulong64))
aborter(res, "GetCurrentThreadHandle")
return pulong64.value
def set_current_thread(self, pid, tid):
proc_sys_id = -1
for x in self.GetProcessIdsByIndex():
sysid, procid = x
if procid == pid:
proc_sys_id = sysid
if proc_sys_id == -1:
raise Exception("Couldn't find designated PID {}".format(pid))
self.SetCurrentProcessId(proc_sys_id)
thread_sys_id = -1
for x in self.GetThreadIdsByIndex():
sysid, threadid = x
if threadid == tid:
thread_sys_id = sysid
if thread_sys_id == -1:
raise Exception("Couldn't find designated TID {}".format(tid))
self.SetCurrentThreadId(thread_sys_id)
return
def print_current_procs_threads(self):
procs = []
for x in self.GetProcessIdsByIndex():
sysid, procid = x
procs.append(procid)
threads = []
for x in self.GetThreadIdsByIndex():
sysid, threadid = x
threads.append(threadid)
print("Current processes: {}".format(procs))
print("Current threads: {}".format(threads))
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