| # Copyright (c) 2017 Linaro Limited. |
| # |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| '''Runner for debugging with J-Link.''' |
| |
| import argparse |
| from functools import partial |
| import logging |
| import os |
| from packaging.version import Version |
| from pathlib import Path |
| import shlex |
| import subprocess |
| import sys |
| import tempfile |
| |
| from runners.core import ZephyrBinaryRunner, RunnerCaps, depr_action |
| |
| try: |
| import pylink |
| from pylink.library import Library |
| MISSING_REQUIREMENTS = False |
| except ImportError: |
| MISSING_REQUIREMENTS = True |
| |
| DEFAULT_JLINK_EXE = 'JLink.exe' if sys.platform == 'win32' else 'JLinkExe' |
| DEFAULT_JLINK_GDB_PORT = 2331 |
| |
| class ToggleAction(argparse.Action): |
| |
| def __call__(self, parser, args, ignored, option): |
| setattr(args, self.dest, not option.startswith('--no-')) |
| |
| class JLinkBinaryRunner(ZephyrBinaryRunner): |
| '''Runner front-end for the J-Link GDB server.''' |
| |
| def __init__(self, cfg, device, dev_id=None, |
| commander=DEFAULT_JLINK_EXE, |
| dt_flash=True, erase=True, reset_after_load=False, |
| iface='swd', speed='auto', |
| gdbserver='JLinkGDBServer', |
| gdb_host='', |
| gdb_port=DEFAULT_JLINK_GDB_PORT, |
| tui=False, tool_opt=[]): |
| super().__init__(cfg) |
| self.hex_name = cfg.hex_file |
| self.bin_name = cfg.bin_file |
| self.elf_name = cfg.elf_file |
| self.gdb_cmd = [cfg.gdb] if cfg.gdb else None |
| self.device = device |
| self.dev_id = dev_id |
| self.commander = commander |
| self.dt_flash = dt_flash |
| self.erase = erase |
| self.reset_after_load = reset_after_load |
| self.gdbserver = gdbserver |
| self.iface = iface |
| self.speed = speed |
| self.gdb_host = gdb_host |
| self.gdb_port = gdb_port |
| self.tui_arg = ['-tui'] if tui else [] |
| |
| self.tool_opt = [] |
| for opts in [shlex.split(opt) for opt in tool_opt]: |
| self.tool_opt += opts |
| |
| @classmethod |
| def name(cls): |
| return 'jlink' |
| |
| @classmethod |
| def capabilities(cls): |
| return RunnerCaps(commands={'flash', 'debug', 'debugserver', 'attach'}, |
| dev_id=True, flash_addr=True, erase=True, |
| tool_opt=True) |
| |
| @classmethod |
| def dev_id_help(cls) -> str: |
| return '''Device identifier. Use it to select the J-Link Serial Number |
| of the device connected over USB.''' |
| |
| @classmethod |
| def tool_opt_help(cls) -> str: |
| return "Additional options for JLink Commander, e.g. '-autoconnect 1'" |
| |
| @classmethod |
| def do_add_parser(cls, parser): |
| # Required: |
| parser.add_argument('--device', required=True, help='device name') |
| |
| # Optional: |
| parser.add_argument('--id', required=False, dest='dev_id', |
| action=partial(depr_action, |
| replacement='-i/--dev-id'), |
| help='Deprecated: use -i/--dev-id instead') |
| parser.add_argument('--iface', default='swd', |
| help='interface to use, default is swd') |
| parser.add_argument('--speed', default='auto', |
| help='interface speed, default is autodetect') |
| parser.add_argument('--tui', default=False, action='store_true', |
| help='if given, GDB uses -tui') |
| parser.add_argument('--gdbserver', default='JLinkGDBServer', |
| help='GDB server, default is JLinkGDBServer') |
| parser.add_argument('--gdb-host', default='', |
| help='custom gdb host, defaults to the empty string ' |
| 'and runs a gdb server') |
| parser.add_argument('--gdb-port', default=DEFAULT_JLINK_GDB_PORT, |
| help='pyocd gdb port, defaults to {}'.format( |
| DEFAULT_JLINK_GDB_PORT)) |
| parser.add_argument('--commander', default=DEFAULT_JLINK_EXE, |
| help=f'''J-Link Commander, default is |
| {DEFAULT_JLINK_EXE}''') |
| parser.add_argument('--reset-after-load', '--no-reset-after-load', |
| dest='reset_after_load', nargs=0, |
| action=ToggleAction, |
| help='reset after loading? (default: no)') |
| |
| parser.set_defaults(reset_after_load=False) |
| |
| @classmethod |
| def do_create(cls, cfg, args): |
| return JLinkBinaryRunner(cfg, args.device, |
| dev_id=args.dev_id, |
| commander=args.commander, |
| dt_flash=args.dt_flash, |
| erase=args.erase, |
| reset_after_load=args.reset_after_load, |
| iface=args.iface, speed=args.speed, |
| gdbserver=args.gdbserver, |
| gdb_host=args.gdb_host, |
| gdb_port=args.gdb_port, |
| tui=args.tui, tool_opt=args.tool_opt) |
| |
| def print_gdbserver_message(self): |
| if not self.thread_info_enabled: |
| thread_msg = '; no thread info available' |
| elif self.supports_thread_info: |
| thread_msg = '; thread info enabled' |
| else: |
| thread_msg = '; update J-Link software for thread info' |
| self.logger.info('J-Link GDB server running on port ' |
| f'{self.gdb_port}{thread_msg}') |
| |
| @property |
| def jlink_version(self): |
| # Get the J-Link version as a (major, minor, rev) tuple of integers. |
| # |
| # J-Link's command line tools provide neither a standalone |
| # "--version" nor help output that contains the version. Hack |
| # around this deficiency by using the third-party pylink library |
| # to load the shared library distributed with the tools, which |
| # provides an API call for getting the version. |
| if not hasattr(self, '_jlink_version'): |
| # pylink >= 0.14.0 exposes JLink SDK DLL (libjlinkarm) in |
| # JLINK_SDK_STARTS_WITH, while previous versions use JLINK_SDK_NAME |
| if Version(pylink.__version__) >= Version('0.14.0'): |
| sdk = Library.JLINK_SDK_STARTS_WITH |
| else: |
| sdk = Library.JLINK_SDK_NAME |
| |
| plat = sys.platform |
| if plat.startswith('win32'): |
| libname = Library.get_appropriate_windows_sdk_name() + '.dll' |
| elif plat.startswith('linux'): |
| libname = sdk + '.so' |
| elif plat.startswith('darwin'): |
| libname = sdk + '.dylib' |
| else: |
| self.logger.warning(f'unknown platform {plat}; assuming UNIX') |
| libname = sdk + '.so' |
| |
| lib = Library(dllpath=os.fspath(Path(self.commander).parent / |
| libname)) |
| version = int(lib.dll().JLINKARM_GetDLLVersion()) |
| self.logger.debug('JLINKARM_GetDLLVersion()=%s', version) |
| # The return value is an int with 2 decimal digits per |
| # version subfield. |
| self._jlink_version = (version // 10000, |
| (version // 100) % 100, |
| version % 100) |
| |
| return self._jlink_version |
| |
| @property |
| def jlink_version_str(self): |
| # Converts the numeric revision tuple to something human-readable. |
| if not hasattr(self, '_jlink_version_str'): |
| major, minor, rev = self.jlink_version |
| rev_str = chr(ord('a') + rev - 1) if rev else '' |
| self._jlink_version_str = f'{major}.{minor:02}{rev_str}' |
| return self._jlink_version_str |
| |
| @property |
| def supports_nogui(self): |
| # -nogui was introduced in J-Link Commander v6.80 |
| return self.jlink_version >= (6, 80, 0) |
| |
| @property |
| def supports_thread_info(self): |
| # RTOSPlugin_Zephyr was introduced in 7.11b |
| return self.jlink_version >= (7, 11, 2) |
| |
| def do_run(self, command, **kwargs): |
| if MISSING_REQUIREMENTS: |
| raise RuntimeError('one or more Python dependencies were missing; ' |
| "see the getting started guide for details on " |
| "how to fix") |
| # Convert commander to a real absolute path. We need this to |
| # be able to find the shared library that tells us what |
| # version of the tools we're using. |
| self.commander = os.fspath( |
| Path(self.require(self.commander)).resolve()) |
| self.logger.info(f'JLink version: {self.jlink_version_str}') |
| |
| rtos = self.thread_info_enabled and self.supports_thread_info |
| plugin_dir = os.fspath(Path(self.commander).parent / 'GDBServer' / |
| 'RTOSPlugin_Zephyr') |
| |
| server_cmd = ([self.gdbserver] + |
| # only USB connections supported |
| ['-select', 'usb' + (f'={self.dev_id}' |
| if self.dev_id else ''), |
| '-port', str(self.gdb_port), |
| '-if', self.iface, |
| '-speed', self.speed, |
| '-device', self.device, |
| '-silent', |
| '-singlerun'] + |
| (['-nogui'] if self.supports_nogui else []) + |
| (['-rtos', plugin_dir] if rtos else []) + |
| self.tool_opt) |
| |
| if command == 'flash': |
| self.flash(**kwargs) |
| elif command == 'debugserver': |
| if self.gdb_host: |
| raise ValueError('Cannot run debugserver with --gdb-host') |
| self.require(self.gdbserver) |
| self.print_gdbserver_message() |
| self.check_call(server_cmd) |
| else: |
| if self.gdb_cmd is None: |
| raise ValueError('Cannot debug; gdb is missing') |
| if self.elf_name is None: |
| raise ValueError('Cannot debug; elf is missing') |
| client_cmd = (self.gdb_cmd + |
| self.tui_arg + |
| [self.elf_name] + |
| ['-ex', 'target remote {}:{}'.format(self.gdb_host, self.gdb_port)]) |
| if command == 'debug': |
| client_cmd += ['-ex', 'monitor halt', |
| '-ex', 'monitor reset', |
| '-ex', 'load'] |
| if self.reset_after_load: |
| client_cmd += ['-ex', 'monitor reset'] |
| if not self.gdb_host: |
| self.require(self.gdbserver) |
| self.print_gdbserver_message() |
| self.run_server_and_client(server_cmd, client_cmd) |
| else: |
| self.run_client(client_cmd) |
| |
| def flash(self, **kwargs): |
| lines = [ |
| 'ExitOnError 1', # Treat any command-error as fatal |
| 'r', # Reset and halt the target |
| ] |
| |
| if self.erase: |
| lines.append('erase') # Erase all flash sectors |
| |
| # Get the build artifact to flash, preferring .hex over .bin |
| if self.hex_name is not None and os.path.isfile(self.hex_name): |
| flash_file = self.hex_name |
| flash_cmd = f'loadfile "{self.hex_name}"' |
| elif self.bin_name is not None and os.path.isfile(self.bin_name): |
| if self.dt_flash: |
| flash_addr = self.flash_address_from_build_conf(self.build_conf) |
| else: |
| flash_addr = 0 |
| flash_file = self.bin_name |
| flash_cmd = f'loadfile "{self.bin_name}" 0x{flash_addr:x}' |
| else: |
| err = 'Cannot flash; no hex ({}) or bin ({}) files found.' |
| raise ValueError(err.format(self.hex_name, self.bin_name)) |
| |
| # Flash the selected build artifact |
| lines.append(flash_cmd) |
| |
| if self.reset_after_load: |
| lines.append('r') # Reset and halt the target |
| |
| lines.append('g') # Start the CPU |
| |
| # Reset the Debug Port CTRL/STAT register |
| # Under normal operation this is done automatically, but if other |
| # JLink tools are running, it is not performed. |
| # The J-Link scripting layer chains commands, meaning that writes are |
| # not actually performed until after the next operation. After writing |
| # the register, read it back to perform this flushing. |
| lines.append('writeDP 1 0') |
| lines.append('readDP 1') |
| |
| lines.append('q') # Close the connection and quit |
| |
| self.logger.debug('JLink commander script:\n' + |
| '\n'.join(lines)) |
| |
| # Don't use NamedTemporaryFile: the resulting file can't be |
| # opened again on Windows. |
| with tempfile.TemporaryDirectory(suffix='jlink') as d: |
| fname = os.path.join(d, 'runner.jlink') |
| with open(fname, 'wb') as f: |
| f.writelines(bytes(line + '\n', 'utf-8') for line in lines) |
| cmd = ([self.commander] + |
| # only USB connections supported |
| (['-USB', f'{self.dev_id}'] if self.dev_id else []) + |
| (['-nogui', '1'] if self.supports_nogui else []) + |
| ['-if', self.iface, |
| '-speed', self.speed, |
| '-device', self.device, |
| '-CommanderScript', fname] + |
| (['-nogui', '1'] if self.supports_nogui else []) + |
| self.tool_opt) |
| |
| self.logger.info('Flashing file: {}'.format(flash_file)) |
| kwargs = {} |
| if not self.logger.isEnabledFor(logging.DEBUG): |
| kwargs['stdout'] = subprocess.DEVNULL |
| self.check_call(cmd, **kwargs) |
