def unload_enclave_symbol(enclave_path, enclave_base_addr):
if os.path.exists(enclave_path) == True:
enclave_path = os.path.abspath(enclave_path)
else:
enclave_path = target_path_to_host_path(enclave_path)
gdb_cmd = load_symbol_cmd.GetUnloadSymbolCommand(enclave_path, str(enclave_base_addr))
if gdb_cmd == -1:
print ("Can't get symbol unloading command.")
return False
# print (gdb_cmd)
gdb.execute(gdb_cmd, False, True)
global g_loaded_oe_enclave_addrs
g_loaded_oe_enclave_addrs.discard(int(gdb_cmd.split()[2]))
return True
def fini_enclave_debug(self):
# If it is HW product enclave, nothing to do
if (self.enclave_type & ET_SIM) != ET_SIM and (self.enclave_type
& ET_DEBUG) != ET_DEBUG:
return -2
self.show_emmt()
try:
# clear TCS debug flag
for tcs_addr in self.tcs_addr_list:
string = read_from_memory(tcs_addr + 8, 4)
if string == None:
return -2
flag = struct.unpack('I', string)[0]
flag &= (~1)
gdb_cmd = "set *(unsigned int *)%#x = %#x" % (tcs_addr + 8,
flag)
gdb.execute(gdb_cmd, False, True)
#unload symbol
if os.path.exists(self.enclave_path) == True:
enclave_path = self.enclave_path
else:
enclave_path = target_path_to_host_path(self.enclave_path)
gdb_cmd = load_symbol_cmd.GetUnloadSymbolCommand(
enclave_path, str(self.start_addr))
if gdb_cmd == -1:
return -1
print(gdb_cmd)
try:
gdb.execute(gdb_cmd, False, True)
global ENCLAVES_ADDR
del ENCLAVES_ADDR[self.start_addr]
except gdb.error:
print("Old gdb doesn't support remove-file-symbol command")
return 0
##It is possible enclave has been destroyed, so may raise exception on memory access
except gdb.MemoryError:
return -1
except:
return -1
