diff options
Diffstat (limited to 'lldb/examples/python/process_events.py')
| -rwxr-xr-x | lldb/examples/python/process_events.py | 86 |
1 files changed, 71 insertions, 15 deletions
diff --git a/lldb/examples/python/process_events.py b/lldb/examples/python/process_events.py index b869c071a99..fbe47390f45 100755 --- a/lldb/examples/python/process_events.py +++ b/lldb/examples/python/process_events.py @@ -8,11 +8,53 @@ # export PYTHONPATH=/Applications/Xcode.app/Contents/SharedFrameworks/LLDB.framework/Resources/Python #---------------------------------------------------------------------- -import lldb +import commands import optparse import os +import platform import sys +#---------------------------------------------------------------------- +# Code that auto imports LLDB +#---------------------------------------------------------------------- +try: + # Just try for LLDB in case PYTHONPATH is already correctly setup + import lldb +except ImportError: + lldb_python_dirs = list() + # lldb is not in the PYTHONPATH, try some defaults for the current platform + platform_system = platform.system() + if platform_system == 'Darwin': + # On Darwin, try the currently selected Xcode directory + xcode_dir = commands.getoutput("xcode-select --print-path") + if xcode_dir: + lldb_python_dirs.append(os.path.realpath(xcode_dir + '/../SharedFrameworks/LLDB.framework/Resources/Python')) + lldb_python_dirs.append(xcode_dir + '/Library/PrivateFrameworks/LLDB.framework/Resources/Python') + lldb_python_dirs.append('/System/Library/PrivateFrameworks/LLDB.framework/Resources/Python') + success = False + for lldb_python_dir in lldb_python_dirs: + if os.path.exists(lldb_python_dir): + if not (sys.path.__contains__(lldb_python_dir)): + sys.path.append(lldb_python_dir) + try: + import lldb + except ImportError: + pass + else: + print 'imported lldb from: "%s"' % (lldb_python_dir) + success = True + break + if not success: + print "error: couldn't locate the 'lldb' module, please set PYTHONPATH correctly" + sys.exit(1) + + + + + + + + def print_threads(process, options): if options.show_threads: for thread in process: @@ -31,16 +73,28 @@ def run_commands(command_interpreter, commands): def main(argv): description='''Debugs a program using the LLDB python API and uses asynchronous broadcast events to watch for process state changes.''' - parser = optparse.OptionParser(description=description, prog='process_events',usage='usage: process_events [options] program [arg1 arg2]') + epilog='''Examples: + +#---------------------------------------------------------------------- +# Run "/bin/ls" with the arguments "-lAF /tmp/", and set a breakpoint +# at "malloc" and backtrace and read all registers each time we stop +#---------------------------------------------------------------------- +% ./process_events.py --breakpoint malloc --stop-command bt --stop-command 'register read' -- /bin/ls -lAF /tmp/ + +''' + optparse.OptionParser.format_epilog = lambda self, formatter: self.epilog + parser = optparse.OptionParser(description=description, prog='process_events',usage='usage: process_events [options] program [arg1 arg2]', epilog=epilog) parser.add_option('-v', '--verbose', action='store_true', dest='verbose', help="Enable verbose logging.", default=False) - parser.add_option('-b', '--breakpoint', action='append', type='string', dest='breakpoints', help='Breakpoint commands to create after the target has been created, the values will be sent to the "_regexp-break" command.') - parser.add_option('-a', '--arch', type='string', dest='arch', help='The architecture to use when creating the debug target.', default=lldb.LLDB_ARCH_DEFAULT) - parser.add_option('-s', '--stop-command', action='append', type='string', dest='stop_commands', help='Commands to run each time the process stops.', default=[]) - parser.add_option('-S', '--crash-command', action='append', type='string', dest='crash_commands', help='Commands to run in case the process crashes.', default=[]) + parser.add_option('-b', '--breakpoint', action='append', type='string', metavar='BPEXPR', dest='breakpoints', help='Breakpoint commands to create after the target has been created, the values will be sent to the "_regexp-break" command which supports breakpoints by name, file:line, and address.') + parser.add_option('-a', '--arch', type='string', dest='arch', help='The architecture to use when creating the debug target.', default=None) + parser.add_option('-l', '--launch-command', action='append', type='string', metavar='CMD', dest='launch_commands', help='LLDB command interpreter commands to run once after the process has launched. This option can be specified more than once.', default=[]) + parser.add_option('-s', '--stop-command', action='append', type='string', metavar='CMD', dest='stop_commands', help='LLDB command interpreter commands to run each time the process stops. This option can be specified more than once.', default=[]) + parser.add_option('-c', '--crash-command', action='append', type='string', metavar='CMD', dest='crash_commands', help='LLDB command interpreter commands to run in case the process crashes. This option can be specified more than once.', default=[]) + parser.add_option('-x', '--exit-command', action='append', type='string', metavar='CMD', dest='exit_commands', help='LLDB command interpreter commands to run once after the process has exited. This option can be specified more than once.', default=[]) parser.add_option('-T', '--no-threads', action='store_false', dest='show_threads', help="Don't show threads when process stops.", default=True) - parser.add_option('-e', '--no_stop-on-error', action='store_false', dest='stop_on_error', help="Stop executing stop or crash commands if the command returns an error.", default=True) - parser.add_option('-c', '--run-count', type='int', dest='run_count', help='How many times to run the process in case the process exits.', default=1) - parser.add_option('-t', '--event-timeout', type='int', dest='event_timeout', help='Specify the timeout in seconds to wait for process state change events.', default=5) + parser.add_option('-e', '--ignore-errors', action='store_false', dest='stop_on_error', help="Don't stop executing LLDB commands if the command returns an error. This applies to all of the LLDB command interpreter commands that get run for launch, stop, crash and exit.", default=True) + parser.add_option('-n', '--run-count', type='int', dest='run_count', metavar='N', help='How many times to run the process in case the process exits.', default=1) + parser.add_option('-t', '--event-timeout', type='int', dest='event_timeout', metavar='SEC', help='Specify the timeout in seconds to wait for process state change events.', default=5) try: (options, args) = parser.parse_args(argv) except: @@ -50,11 +104,10 @@ def main(argv): sys.exit(1) exe = args.pop(0) - + # Create a new debugger instance debugger = lldb.SBDebugger.Create() command_interpreter = debugger.GetCommandInterpreter() - return_obj = lldb.SBCommandReturnObject() # Create a target from a file and arch print "Creating a target for '%s'" % exe @@ -63,9 +116,10 @@ def main(argv): if target: # Set any breakpoints that were specified in the args - for bp in options.breakpoints: - command_interpreter.HandleCommand( "_regexp-break %s" % (bp), return_obj ) - print return_obj + if options.breakpoints: + for bp in options.breakpoints: + debugger.HandleCommand( "_regexp-break %s" % (bp)) + run_commands(command_interpreter, ['breakpoint list']) for run_idx in range(options.run_count): # Launch the process. Since we specified synchronous mode, we won't return @@ -92,12 +146,13 @@ def main(argv): if state == lldb.eStateStopped: if stop_idx == 0: print "process %u launched" % (pid) + run_commands (command_interpreter, options.launch_commands) else: if options.verbose: print "process %u stopped" % (pid) + run_commands (command_interpreter, options.stop_commands) stop_idx += 1 print_threads (process, options) - run_commands (command_interpreter, options.stop_commands) process.Continue() elif state == lldb.eStateExited: exit_desc = process.GetExitDescription() @@ -105,6 +160,7 @@ def main(argv): print "process %u exited with status %u: %s" % (pid, process.GetExitStatus (), exit_desc) else: print "process %u exited with status %u" % (pid, process.GetExitStatus ()) + run_commands (command_interpreter, options.exit_commands) done = True elif state == lldb.eStateCrashed: print "process %u crashed" % (pid) |
