def _readBytes(self, address, size):
offset = address % CPU_WORD_SIZE
if offset:
# Read word
address -= offset
word = self.readWord(address)
bytes = word2bytes(word)
# Read some bytes from the word
subsize = min(CPU_WORD_SIZE - offset, size)
data = bytes[offset:offset + subsize] # <-- FIXME: Big endian!
# Move cursor
size -= subsize
address += CPU_WORD_SIZE
else:
data = b('')
while size:
# Read word
word = self.readWord(address)
bytes = word2bytes(word)
# Read bytes from the word
if size < CPU_WORD_SIZE:
data += bytes[:size] # <-- FIXME: Big endian!
break
data += bytes
# Move cursor
size -= CPU_WORD_SIZE
address += CPU_WORD_SIZE
return data
def _readBytes(self, address, size):
debug("Read %s bytes at %s" % (size, formatAddress(address)))
offset = address % CPU_WORD_SIZE
if offset:
# Read word
address -= offset
word = self.readWord(address)
bytes = word2bytes(word)
# Read some bytes from the word
subsize = min(CPU_WORD_SIZE - offset, size)
data = bytes[offset:offset + subsize] # <-- FIXME: Big endian!
# Move cursor
size -= subsize
address += CPU_WORD_SIZE
else:
data = ''
while size:
# Read word
word = self.readWord(address)
bytes = word2bytes(word)
# Read bytes from the word
if size < CPU_WORD_SIZE:
data += bytes[:size] # <-- FIXME: Big endian!
break
data += bytes
# Move cursor
size -= CPU_WORD_SIZE
address += CPU_WORD_SIZE
return data
def getregs(self):
error("Read registers using ptrace_peekuser()")
words = []
nb_words = sizeof(ptrace_registers_t) // CPU_WORD_SIZE
for offset in xrange(nb_words):
word = ptrace_peekuser(self.pid, offset * CPU_WORD_SIZE)
bytes = word2bytes(word)
words.append(bytes)
bytes = ''.join(words)
return cast(bytes, POINTER(ptrace_registers_t))[0]
def getregs(self):
error("Read registers using ptrace_peekuser()")
words = []
nb_words = sizeof(ptrace_registers_t) // CPU_WORD_SIZE
for offset in xrange(nb_words):
word = ptrace_peekuser(self.pid, offset*CPU_WORD_SIZE)
bytes = word2bytes(word)
words.append(bytes)
bytes = ''.join(words)
return cast(bytes, POINTER(ptrace_registers_t))[0]
def getregs(self):
if HAS_PTRACE_GETREGS or HAS_PTRACE_GETREGSET:
return ptrace_getregs(self.pid)
# FIXME: Optimize getreg() when used with this function
words = []
nb_words = sizeof(ptrace_registers_t) // CPU_WORD_SIZE
for offset in range(nb_words):
word = ptrace_peekuser(self.pid, offset * CPU_WORD_SIZE)
bytes = word2bytes(word)
words.append(bytes)
bytes = ''.join(words)
return bytes2type(bytes, ptrace_registers_t)
def getregs(self):
if HAS_PTRACE_GETREGS:
return ptrace_getregs(self.pid)
else:
# FIXME: Optimize getreg() when used with this function
words = []
nb_words = sizeof(ptrace_registers_t) // CPU_WORD_SIZE
for offset in range(nb_words):
word = ptrace_peekuser(self.pid, offset * CPU_WORD_SIZE)
bytes = word2bytes(word)
words.append(bytes)
bytes = ''.join(words)
return bytes2type(bytes, ptrace_registers_t)
def __init__(self, process, address, size=None):
self._installed = False
self.process = ref(process)
self.address = address
if CPU_POWERPC:
size = CPU_WORD_SIZE
elif size is None:
size = 1
self.size = size
# Store instruction bytes
info("Install %s" % self)
self.old_bytes = process.readBytes(address, size)
if CPU_POWERPC:
# Replace instruction with "TRAP"
new_bytes = word2bytes(0x0cc00000)
else:
# Replace instruction with "INT 3"
new_bytes = b("\xCC") * size
process.writeBytes(address, new_bytes)
self._installed = True
def getPointers(process, address):
address = word2bytes(address)
procmaps = readProcessMappings(process)
for pm in procmaps:
for found in pm.search(address):
yield found
def getPointers(process, address):
address = word2bytes(address)
procmaps = readProcessMappings(process)
for pm in procmaps:
for found in pm.search(address):
yield found
