| """ |
| Tests debugserver support for MultiMemRead. |
| """ |
| |
| import lldb |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| |
| @skipUnlessDarwin |
| @skipIfOutOfTreeDebugserver |
| class TestCase(TestBase): |
| def send_process_packet(self, packet_str): |
| self.runCmd(f"proc plugin packet send {packet_str}", check=False) |
| # The output is of the form: |
| # packet: <packet_str> |
| # response: <response> |
| reply = self.res.GetOutput().split("\n") |
| packet = reply[0].strip() |
| response = reply[1].strip() |
| |
| self.assertTrue(packet.startswith("packet: ")) |
| self.assertTrue(response.startswith("response: ")) |
| return response[len("response: ") :] |
| |
| def check_invalid_packet(self, packet_str): |
| reply = self.send_process_packet("packet_str") |
| self.assertEqual(reply, "E03") |
| |
| def test_packets(self): |
| self.build() |
| source_file = lldb.SBFileSpec("main.c") |
| target, process, thread, bkpt = lldbutil.run_to_source_breakpoint( |
| self, "break here", source_file |
| ) |
| |
| reply = self.send_process_packet("qSupported") |
| self.assertIn("MultiMemRead+", reply) |
| |
| mem_address_var = thread.frames[0].FindVariable("memory") |
| self.assertTrue(mem_address_var) |
| mem_address = mem_address_var.GetValueAsUnsigned() + 42 |
| |
| # no ":" |
| self.check_invalid_packet("MultiMemRead") |
| # missing ranges |
| self.check_invalid_packet("MultiMemRead:") |
| # needs at least one range |
| self.check_invalid_packet("MultiMemRead:ranges:") |
| # needs at least one range |
| self.check_invalid_packet("MultiMemRead:ranges:,") |
| # a range is a pair of numbers |
| self.check_invalid_packet("MultiMemRead:ranges:10") |
| # a range is a pair of numbers |
| self.check_invalid_packet("MultiMemRead:ranges:10,") |
| # range list must end with ; |
| self.check_invalid_packet("MultiMemRead:ranges:10,2") |
| self.check_invalid_packet("MultiMemRead:ranges:10,2,") |
| self.check_invalid_packet("MultiMemRead:ranges:10,2,3") |
| # ranges are pairs of numbers. |
| self.check_invalid_packet("MultiMemRead:ranges:10,2,3;") |
| # unrecognized field |
| self.check_invalid_packet("MultiMemRead:ranges:10,2;blah:;") |
| # unrecognized field |
| self.check_invalid_packet("MultiMemRead:blah:;ranges:10,2;") |
| |
| # Zero-length reads are ok. |
| reply = self.send_process_packet("MultiMemRead:ranges:0,0;") |
| self.assertEqual(reply, "0;") |
| |
| # Debugserver is permissive with trailing commas. |
| reply = self.send_process_packet("MultiMemRead:ranges:10,2,;") |
| self.assertEqual(reply, "0;") |
| reply = self.send_process_packet(f"MultiMemRead:ranges:{mem_address:x},2,;") |
| self.assertEqual(reply, "2;ab") |
| |
| reply = self.send_process_packet("MultiMemRead:ranges:10,2;") |
| self.assertEqual(reply, "0;") |
| reply = self.send_process_packet(f"MultiMemRead:ranges:{mem_address:x},0;") |
| self.assertEqual(reply, "0;") |
| reply = self.send_process_packet(f"MultiMemRead:ranges:{mem_address:x},2;") |
| self.assertEqual(reply, "2;ab") |
| reply = self.send_process_packet( |
| f"MultiMemRead:ranges:{mem_address:x},2,{mem_address+2:x},4;" |
| ) |
| self.assertEqual(reply, "2,4;abcdef") |
| reply = self.send_process_packet( |
| f"MultiMemRead:ranges:{mem_address:x},2,{mem_address+2:x},4,{mem_address+6:x},8;" |
| ) |
| self.assertEqual(reply, "2,4,8;abcdefghijklmn") |
| |
| # Test zero length in the middle. |
| reply = self.send_process_packet( |
| f"MultiMemRead:ranges:{mem_address:x},2,{mem_address+2:x},0,{mem_address+6:x},8;" |
| ) |
| self.assertEqual(reply, "2,0,8;abghijklmn") |
| # Test zero length in the end. |
| reply = self.send_process_packet( |
| f"MultiMemRead:ranges:{mem_address:x},2,{mem_address+2:x},4,{mem_address+6:x},0;" |
| ) |
| self.assertEqual(reply, "2,4,0;abcdef") |
