import json import os import sys import subprocess import shlex import time import re from threading import Thread import threading from idf_py_actions.errors import FatalError from idf_py_actions.tools import ensure_build_directory PYTHON = sys.executable def action_extensions(base_actions, project_path): OPENOCD_OUT_FILE = "openocd_out.txt" GDBGUI_OUT_FILE = "gdbgui_out.txt" # Internal dictionary of currently active processes, threads and their output files processes = {"threads_to_join": []} def _check_openocd_errors(fail_if_openocd_failed, target, ctx): if fail_if_openocd_failed: if "openocd" in processes and processes["openocd"] is not None: p = processes["openocd"] name = processes["openocd_outfile_name"] # watch OpenOCD (for 5x500ms) to check if it hasn't terminated or outputs an error for _ in range(5): if p.poll() is not None: print("OpenOCD exited with {}".format(p.poll())) break with open(name, "r") as f: content = f.read() if re.search(r"no device found", content): break if re.search(r"Listening on port \d+ for gdb connections", content): # expect OpenOCD has started successfully - stop watching return time.sleep(0.5) else: return # OpenOCD exited or error message detected -> print possible output and terminate with open(name, "r") as f: print(f.read()) raise FatalError('Action "{}" failed due to errors in OpenOCD: Please check jtag connection!'.format(target), ctx) def _terminate_async_target(target): if target in processes and processes[target] is not None: try: if target + "_outfile" in processes: processes[target + "_outfile"].close() p = processes[target] if p.poll() is None: p.terminate() # waiting 10x100ms for the process to terminate gracefully for _ in range(10): if p.poll() is not None: break time.sleep(0.1) else: p.kill() if target + "_outfile_name" in processes: os.unlink(processes[target + "_outfile_name"]) except Exception as e: print(e) print("Failed to close/kill {}".format(target)) processes[target] = None # to indicate this has ended def _get_commandline_options(ctx): """ Return all the command line options up to first action """ # This approach ignores argument parsing done Click result = [] for arg in sys.argv: if arg in ctx.command.commands_with_aliases: break result.append(arg) return result def create_local_gdbinit(gdbinit, elf_file): with open(gdbinit, "w") as f: f.write("target remote :3333\n") if os.name == "nt": elf_file = elf_file.replace('\\','\\\\') f.write("symbol-file {}\n".format(elf_file)) f.write("mon reset halt\n") f.write("flushregs\n") f.write("thb app_main\n") f.write("c\n") def debug_cleanup(): print("cleaning up debug targets") for t in processes["threads_to_join"]: if threading.currentThread() != t: t.join() _terminate_async_target("openocd") _terminate_async_target("gdbgui") _terminate_async_target("gdb") def post_debug(action, ctx, args, **kwargs): """ Deal with asynchronous targets, such as openocd running in background """ if kwargs["block"] == 1: for target in ["openocd", "gdbgui"]: if target in processes and processes[target] is not None: break else: return try: p = processes[target] name = processes[target + "_outfile_name"] pos = 0 while True: with open(name, "r") as f: f.seek(pos) for line in f: print(line.rstrip()) pos = f.tell() if p.poll() is not None: print('"{}" exited with {}'.format(target, p.poll())) break time.sleep(0.5) except KeyboardInterrupt: print("Terminated -> exiting debug utility targets") _terminate_async_target("openocd") _terminate_async_target("gdbgui") def get_project_desc(args, ctx): desc_path = os.path.join(args.build_dir, "project_description.json") if not os.path.exists(desc_path): ensure_build_directory(args, ctx.info_name) with open(desc_path, "r") as f: project_desc = json.load(f) return project_desc def openocd(action, ctx, args, openocd_scripts, openocd_commands): """ Execute openocd as external tool """ if os.getenv("OPENOCD_SCRIPTS") is None: raise FatalError("OPENOCD_SCRIPTS not found in the environment: Please run export.sh/export.bin", ctx) openocd_arguments = os.getenv("OPENOCD_COMMANDS") if openocd_commands is None else openocd_commands project_desc = get_project_desc(args, ctx) if openocd_arguments is None: # use default value if commands not defined in the environment nor command line if project_desc["target"] == "esp32": openocd_arguments = "-f board/esp32-wrover-kit-3.3v.cfg" else: openocd_arguments = "-f interface/ftdi/esp32_devkitj_v1.cfg -f target/{}.cfg".format(project_desc["target"]) print('Note: OpenOCD cfg not found (via env variable OPENOCD_COMMANDS nor as a --openocd-commands argument)\n' 'OpenOCD arguments default to: "{}"'.format(openocd_arguments)) # script directory is taken from the environment by OpenOCD, update only if command line arguments to override if openocd_scripts is not None: openocd_arguments += " -s {}".format(openocd_scripts) local_dir = project_desc["build_dir"] args = ["openocd"] + shlex.split(openocd_arguments) openocd_out_name = os.path.join(local_dir, OPENOCD_OUT_FILE) openocd_out = open(openocd_out_name, "a+") try: process = subprocess.Popen(args, stdout=openocd_out, stderr=subprocess.STDOUT, bufsize=1) except Exception as e: print(e) raise FatalError("Error starting openocd. Please make sure it is installed and is present in executable paths", ctx) processes["openocd"] = process processes["openocd_outfile"] = openocd_out processes["openocd_outfile_name"] = openocd_out_name print("OpenOCD started as a background task {}".format(process.pid)) def gdbui(action, ctx, args, gdbgui_port, require_openocd): """ Asynchronous GDB-UI target """ project_desc = get_project_desc(args, ctx) local_dir = project_desc["build_dir"] gdb = project_desc["monitor_toolprefix"] + "gdb" gdbinit = os.path.join(local_dir, 'gdbinit') create_local_gdbinit(gdbinit, os.path.join(args.build_dir, project_desc["app_elf"])) args = ["gdbgui", "-g", gdb, '--gdb-args="-x={}"'.format(gdbinit)] if gdbgui_port is not None: args += ["--port", gdbgui_port] gdbgui_out_name = os.path.join(local_dir, GDBGUI_OUT_FILE) gdbgui_out = open(gdbgui_out_name, "a+") try: process = subprocess.Popen(args, stdout=gdbgui_out, stderr=subprocess.STDOUT, bufsize=1) except Exception as e: print(e) raise FatalError("Error starting gdbgui. Please make sure gdbgui can be started", ctx) processes["gdbgui"] = process processes["gdbgui_outfile"] = gdbgui_out processes["gdbgui_outfile_name"] = gdbgui_out_name print("gdbgui started as a background task {}".format(process.pid)) _check_openocd_errors(fail_if_openocd_failed, action, ctx) def global_callback(ctx, global_args, tasks): def move_to_front(task_name): for index, task in enumerate(tasks): if task.name == task_name: tasks.insert(0, tasks.pop(index)) break debug_targets = any([task.name in ("openocd", "gdbgui") for task in tasks]) if debug_targets: # Register the meta cleanup callback -> called on FatalError ctx.meta["cleanup"] = debug_cleanup move_to_front("gdbgui") # possibly 2nd move_to_front("openocd") # always 1st # followed by "monitor", "gdb" or "gdbtui" in any order post_action = ctx.invoke(ctx.command.get_command(ctx, "post_debug")) if any([task.name in ("monitor", "gdb", "gdbtui") for task in tasks]): post_action.action_args["block"] = 0 else: post_action.action_args["block"] = 1 tasks.append(post_action) # always last if any([task.name == "openocd" for task in tasks]): for task in tasks: if task.name in ("gdb", "gdbgui", "gdbtui"): task.action_args["require_openocd"] = True def run_gdb(gdb_args): p = subprocess.Popen(gdb_args) processes["gdb"] = p return p.wait() def gdbtui(action, ctx, args, require_openocd): """ Synchronous GDB target with text ui mode """ gdb(action, ctx, args, 1, require_openocd) def gdb(action, ctx, args, gdb_tui, require_openocd): """ Synchronous GDB target """ watch_openocd = Thread(target=_check_openocd_errors, args=(fail_if_openocd_failed, action, ctx, )) watch_openocd.start() processes["threads_to_join"].append(watch_openocd) desc_path = os.path.join(args.build_dir, "project_description.json") if not os.path.exists(desc_path): ensure_build_directory(args, ctx.info_name) with open(desc_path, "r") as f: project_desc = json.load(f) elf_file = os.path.join(args.build_dir, project_desc["app_elf"]) if not os.path.exists(elf_file): raise FatalError("ELF file not found. You need to build & flash the project before running debug targets", ctx) gdb = project_desc["monitor_toolprefix"] + "gdb" local_dir = project_desc["build_dir"] gdbinit = os.path.join(local_dir, 'gdbinit') create_local_gdbinit(gdbinit, elf_file) args = [gdb, '-x={}'.format(gdbinit)] if gdb_tui is not None: args += ['-tui'] t = Thread(target=run_gdb, args=(args, )) t.start() while True: try: t.join() break except KeyboardInterrupt: # Catching Keyboard interrupt, as this is used for breaking running program in gdb continue finally: watch_openocd.join() processes["threads_to_join"].remove(watch_openocd) fail_if_openocd_failed = { "names": ["--require-openocd", "--require_openocd"], "help": ("Fail this target if openocd (this targets dependency) failed.\n"), "is_flag": True, "default": False, } debug_actions = { "global_action_callbacks": [global_callback], "actions": { "openocd": { "callback": openocd, "help": "Run openocd from current path", "options": [ { "names": ["--openocd-scripts", "--openocd_scripts"], "help": ("Script directory for openocd cfg files.\n"), "default": None, }, { "names": ["--openocd-commands", "--openocd_commands"], "help": ("Command line arguments for openocd.\n"), "default": None, } ], "order_dependencies": ["all", "flash"], }, "gdb": { "callback": gdb, "help": "Run the GDB.", "options": [ { "names": ["--gdb-tui", "--gdb_tui"], "help": ("run gdb in TUI mode\n"), "default": None, }, fail_if_openocd_failed ], "order_dependencies": ["all", "flash"], }, "gdbgui": { "callback": gdbui, "help": "GDB UI in default browser.", "options": [ { "names": ["--gdbgui-port", "--gdbgui_port"], "help": ("The port on which gdbgui will be hosted. Default: 5000\n"), "default": None, }, fail_if_openocd_failed ], "order_dependencies": ["all", "flash"], }, "gdbtui": { "callback": gdbtui, "help": "GDB TUI mode.", "options": [fail_if_openocd_failed], "order_dependencies": ["all", "flash"], }, "post_debug": { "callback": post_debug, "help": "Utility target to read the output of async debug action and stop them.", "options": [ { "names": ["--block", "--block"], "help": ("Set to 1 for blocking the console on the outputs of async debug actions\n"), "default": 0, }, ], "order_dependencies": [], }, }, } return debug_actions