How to use get_results_dir_list method in autotest

Best Python code snippet using autotest_python Github


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...45 f.close()46 if report:47 gdb_report(filename)48 return filename49def get_results_dir_list(pid, core_dir_basename):50 """51 Get all valid output directories for the core file and the report. It works52 by inspecting files created by each test on /tmp and verifying if the53 PID of the process that crashed is a child or grandchild of the autotest54 test process. If it can't find any relationship (maybe a daemon that died55 during a test execution), it will write the core file to the debug dirs56 of all tests currently being executed. If there are no active autotest57 tests at a particular moment, it will return a list with ['/tmp'].58 @param pid: PID for the process that generated the core59 @param core_dir_basename: Basename for the directory that will hold both60 the core dump and the crash report.61 """62 pid_dir_dict = {}63 for debugdir_file in glob.glob("/tmp/autotest_results_dir.*"):64 a_pid = os.path.splitext(debugdir_file)[1]65 results_dir = open(debugdir_file).read().strip()66 pid_dir_dict[a_pid] = os.path.join(results_dir, core_dir_basename)67 results_dir_list = []68 # If a bug occurs and we can't grab the PID for the process that died, just69 # return all directories available and write to all of them.70 if pid is not None:71 while pid > 1:72 if pid in pid_dir_dict:73 results_dir_list.append(pid_dir_dict[pid])74 pid = get_parent_pid(pid)75 else:76 results_dir_list = pid_dir_dict.values()77 return (results_dir_list or78 pid_dir_dict.values() or79 [os.path.join("/tmp", core_dir_basename)])80def get_info_from_core(path):81 """82 Reads a core file and extracts a dictionary with useful core information.83 Right now, the only information extracted is the full executable name.84 @param path: Path to core file.85 """86 full_exe_path = None87 output = commands.getoutput('gdb -c %s batch' % path)88 path_pattern = re.compile("Core was generated by `([^\0]+)'", re.IGNORECASE)89 match = re.findall(path_pattern, output)90 for m in match:91 # Sometimes the command line args come with the core, so get rid of them92 m = m.split(" ")[0]93 if os.path.isfile(m):94 full_exe_path = m95 break96 if full_exe_path is None:97 syslog.syslog("Could not determine from which application core file %s "98 "is from" % path)99 return {'full_exe_path': full_exe_path}100def gdb_report(path):101 """102 Use GDB to produce a report with information about a given core.103 @param path: Path to core file.104 """105 # Get full command path106 exe_path = get_info_from_core(path)['full_exe_path']107 basedir = os.path.dirname(path)108 gdb_command_path = os.path.join(basedir, 'gdb_cmd')109 if exe_path is not None:110 # Write a command file for GDB111 gdb_command = 'bt full\n'112 write_to_file(gdb_command_path, gdb_command)113 # Take a backtrace from the running program114 gdb_cmd = ('gdb -e %s -c %s -x %s -n -batch -quiet' %115 (exe_path, path, gdb_command_path))116 backtrace = commands.getoutput(gdb_cmd)117 # Sanitize output before passing it to the report118 backtrace = backtrace.decode('utf-8', 'ignore')119 else:120 exe_path = "Unknown"121 backtrace = ("Could not determine backtrace for core file %s" % path)122 # Composing the format_dict123 report = "Program: %s\n" % exe_path124 if crashed_pid is not None:125 report += "PID: %s\n" % crashed_pid126 if signal is not None:127 report += "Signal: %s\n" % signal128 if hostname is not None:129 report += "Hostname: %s\n" % hostname130 if crash_time is not None:131 report += ("Time of the crash (according to kernel): %s\n" %132 time.ctime(float(crash_time)))133 report += "Program backtrace:\n%s\n" % backtrace134 report_path = os.path.join(basedir, 'report')135 write_to_file(report_path, report)136def write_cores(core_data, dir_list):137 """138 Write core files to all directories, optionally providing reports.139 @param core_data: Contents of the core file.140 @param dir_list: List of directories the cores have to be written.141 @param report: Whether reports are to be generated for those core files.142 """143 syslog.syslog("Writing core files to %s" % dir_list)144 for result_dir in dir_list:145 if not os.path.isdir(result_dir):146 os.makedirs(result_dir)147 core_path = os.path.join(result_dir, 'core')148 core_path = write_to_file(core_path, core_file, report=True)149if __name__ == "__main__":150 syslog.openlog('AutotestCrashHandler', 0, syslog.LOG_DAEMON)151 global crashed_pid, crash_time, uid, signal, hostname, exe152 try:153 full_functionality = False154 try:155 crashed_pid, crash_time, uid, signal, hostname, exe = sys.argv[1:]156 full_functionality = True157 except ValueError, e:158 # Probably due a kernel bug, we can't exactly map the parameters159 # passed to this script. So we have to reduce the functionality160 # of the script (just write the core at a fixed place).161 syslog.syslog("Unable to unpack parameters passed to the "162 "script. Operating with limited functionality.")163 crashed_pid, crash_time, uid, signal, hostname, exe = (None, None,164 None, None,165 None, None)166 if full_functionality:167 core_dir_name = 'crash.%s.%s' % (exe, crashed_pid)168 else:169 core_dir_name = 'core.%s' % generate_random_string(4)170 # Get the filtered results dir list171 results_dir_list = get_results_dir_list(crashed_pid, core_dir_name)172 # Write the core file to the appropriate directory173 # (we are piping it to this script)174 core_file = if (exe is not None) and (crashed_pid is not None):176 syslog.syslog("Application %s, PID %s crashed" % (exe, crashed_pid))177 write_cores(core_file, results_dir_list)178 except Exception, e:...

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