def trigger_write_instruction(self, item):
if not self.dwarf.keystone_installed:
details = ''
try:
import keystone.keystone_const
except Exception as e:
details = str(e)
utils.show_message_box(
'keystone-engine not found. Install it to enable instructions patching',
details=details)
return
accept, inst, arch, mode = WriteInstructionDialog().show_dialog(
input_content='%s %s' %
(self.item(item.row(), 1).text(), self.item(item.row(), 2).text()),
arch=self.ks_arch,
mode=self.ks_mode)
self.ks_arch = 'KS_ARCH_' + arch.upper()
self.ks_mode = 'KS_MODE_' + mode.upper()
if accept and len(inst) > 0:
import keystone
try:
ks = keystone.Ks(
getattr(keystone.keystone_const, self.ks_arch),
getattr(keystone.keystone_const, self.ks_mode))
encoding, count = ks.asm(inst)
asm_widget = self.item(item.row(), 0)
offset = asm_widget.get_offset()
if self.dwarf.dwarf_api('writeBytes',
[asm_widget.get_address(), encoding]):
new_data = bytearray(self.range.data)
for i in range(0, len(encoding)):
try:
new_data[self.asm_data_start + offset +
i] = encoding[i]
except Exception as e:
if isinstance(e, IndexError):
break
self.range.data = bytes(new_data)
self.disa()
except Exception as e:
self.dwarf.log(e)
def trigger_write_instruction(self):
if len(self.selectedItems()) == 0:
return
item = self.selectedItems()[0]
accept, inst, arch, mode = WriteInstructionDialog().show_dialog(
input_content='%s %s' %
(self.item(item.row(), 1).text(), self.item(item.row(), 2).text()),
arch=self.ks_arch,
mode=self.ks_mode)
self.ks_arch = 'KS_ARCH_' + arch.upper()
self.ks_mode = 'KS_MODE_' + mode.upper()
if accept and len(inst) > 0:
import keystone
try:
ks = keystone.Ks(
getattr(keystone.keystone_const, self.ks_arch),
getattr(keystone.keystone_const, self.ks_mode))
encoding, count = ks.asm(inst)
asm_widget = self.item(item.row(), 0)
offset = asm_widget.get_offset()
if self.app.dwarf_api('writeBytes',
[asm_widget.get_address(), encoding]):
new_data = bytearray(self.range.data)
for i in range(0, len(encoding)):
try:
new_data[self.asm_data_start + offset +
i] = encoding[i]
except Exception as e:
if isinstance(e, IndexError):
break
self.range.data = bytes(new_data)
self.disa()
except Exception as e:
self.app.get_log_panel().log(str(e))