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ardupilot/Tools/scripts/extract_features.py

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Python
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#!/usr/bin/env python
"""
script to determine what features have been built into an ArduPilot binary
AP_FLAKE8_CLEAN
"""
import optparse
import os
import re
import string
import subprocess
import sys
import time
import build_options
if sys.version_info[0] < 3:
running_python3 = False
else:
running_python3 = True
class ExtractFeatures(object):
def __init__(self, filename):
self.filename = filename
self.nm = 'arm-none-eabi-nm'
# feature_name should match the equivalent feature in
# build_options.py ('FEATURE_NAME', 'EXPECTED_SYMBOL').
# EXPECTED_SYMBOL is a regular expression which will be matched
# against "define" in build_options's feature list, and
# FEATURE_NAME will have substitutions made from the match.
# the substitutions will be upper-cased
self.features = [
('AP_AIRSPEED_ENABLED', 'AP_Airspeed::AP_Airspeed',),
('AP_AIRSPEED_{type}_ENABLED', r'AP_Airspeed_(?P<type>.*)::init',),
('HAL_ADSB_ENABLED', 'AP_ADSB::AP_ADSB',),
('HAL_ADSB_{type}_ENABLED', r'AP_ADSB_(?P<type>.*)::update',),
('HAL_ADSB_UCP_ENABLED', 'AP_ADSB_uAvionix_UCP::update',),
('AP_AIS_ENABLED', 'AP_AIS::AP_AIS',),
('HAL_EFI_ENABLED', 'AP_EFI::AP_EFI',),
('BEACON_ENABLED', 'AP_Beacon::AP_Beacon',),
('HAL_TORQEEDO_ENABLED', 'AP_Torqeedo::AP_Torqeedo'),
('HAL_NAVEKF3_AVAILABLE', 'NavEKF3::NavEKF3',),
('HAL_NAVEKF2_AVAILABLE', 'NavEKF2::NavEKF2',),
('HAL_EXTERNAL_AHRS_ENABLED', r'AP_ExternalAHRS::init\b',),
('HAL_INS_TEMPERATURE_CAL_ENABLE', 'AP_InertialSensor::TCal::Learn::save_calibration',),
('HAL_VISUALODOM_ENABLED', 'AP_VisualOdom::init',),
('AP_RANGEFINDER_ENABLED', 'RangeFinder::RangeFinder',),
('AP_RANGEFINDER_{type}_ENABLED', r'AP_RangeFinder_(?P<type>.*)::update\b',),
('AP_GPS_{type}_ENABLED', r'AP_GPS_(?P<type>.*)::read\b',),
('AP_OPTICALFLOW_ENABLED', 'OpticalFlow::OpticalFlow',),
('AP_OPTICALFLOW_{type}_ENABLED', r'AP_OpticalFlow_(?P<type>.*)::update\b',),
('AP_BARO_{type}_ENABLED', r'AP_Baro_(?P<type>.*)::update\b',),
('AP_MOTORS_FRAME_{type}_ENABLED', r'AP_MotorsMatrix::setup_(?P<type>.*)_matrix\b',),
('HAL_MSP_ENABLED', r'AP_MSP::init\b',),
('HAL_MSP_{type}_ENABLED', r'AP_(?P<type>.*)_MSP::update\b',),
('HAL_MSP_{type}_ENABLED', r'AP_(?P<type>.*)_MSP::read\b',),
('HAL_WITH_MSP_DISPLAYPORT', r'AP_OSD_MSP_DisplayPort::init\b',),
('AP_BATTMON_{type}_ENABLE', r'AP_BattMonitor_(?P<type>.*)::init\b',),
('HAL_BATTMON_{type}_ENABLED', r'AP_BattMonitor_(?P<type>.*)::init\b',),
('HAL_MOUNT_ENABLED', 'AP_Mount::AP_Mount',),
('HAL_MOUNT_{type}_ENABLED', r'AP_Mount_(?P<type>.*)::update\b',),
('HAL_SOLO_GIMBAL_ENABLED', 'AP_Mount_SoloGimbal::init',),
('HAL_MOUNT_STORM32SERIAL_ENABLED', 'AP_Mount_SToRM32_serial::init',),
('HAL_MOUNT_STORM32MAVLINK_ENABLED', 'AP_Mount_SToRM32::init',),
('HAL_{type}_TELEM_ENABLED', r'AP_(?P<type>.*)_Telem::init',),
('HAL_CRSF_TELEM_TEXT_SELECTION_ENABLED', 'AP_CRSF_Telem::calc_text_selection',),
('AP_LTM_TELEM_ENABLED', 'AP_LTM_Telem::init',),
('HAL_HIGH_LATENCY2_ENABLED', 'GCS_MAVLINK::handle_control_high_latency',),
('MODE_{type}_ENABLED', r'Mode(?P<type>.*)::init',),
('HAL_RUNCAM_ENABLED', 'AP_RunCam::AP_RunCam',),
('HAL_PARACHUTE_ENABLED', 'AP_Parachute::update',),
('AP_FENCE_ENABLED', r'AC_Fence::check\b',),
('HAL_PROXIMITY_ENABLED', 'AP_Proximity::AP_Proximity',),
('AC_AVOID_ENABLED', 'AC_Avoid::AC_Avoid',),
('AC_OAPATHPLANNER_ENABLED', 'AP_OAPathPlanner::AP_OAPathPlanner',),
('AP_ICENGINE_ENABLED', 'AP_ICEngine::AP_ICEngine',),
('HAL_EFI_ENABLED', 'AP_RPM_EFI::AP_RPM_EFI',),
('HAL_EFI_NWPWU_ENABLED', r'AP_EFI_NWPMU::update\b',),
('HAL_GENERATOR_ENABLED', 'AP_Generator::AP_Generator',),
('OSD_ENABLED', 'AP_OSD::AP_OSD',),
('HAL_PLUSCODE_ENABLE', 'AP_OSD_Screen::draw_pluscode',),
('OSD_PARAM_ENABLED', 'AP_OSD_ParamScreen::AP_OSD_ParamScreen',),
('HAL_OSD_SIDEBAR_ENABLE', 'AP_OSD_Screen::draw_sidebars',),
('HAL_SMARTAUDIO_ENABLED', 'AP_SmartAudio::AP_SmartAudio',),
('AP_TRAMP_ENABLED', 'AP_Tramp::AP_Tramp',),
('HAL_QUADPLANE_ENABLED', 'QuadPlane::QuadPlane',),
('HAL_SOARING_ENABLED', 'SoaringController::var_info',),
('HAL_LANDING_DEEPSTALL_ENABLED', r'AP_Landing_Deepstall::terminate\b',),
('GRIPPER_ENABLED', r'AP_Gripper::init\b',),
('HAL_SPRAYER_ENABLED', 'AC_Sprayer::AC_Sprayer',),
('LANDING_GEAR_ENABLED', r'AP_LandingGear::init\b',),
('WINCH_ENABLED', 'AP_Winch::AP_Winch',),
('AP_VOLZ_ENABLED', r'AP_Volz_Protocol::init\b',),
('AP_ROBOTISSERVO_ENABLED', r'AP_RobotisServo::init\b',),
('AP_FETTEC_ONEWIRE_ENABLED', r'AP_FETtecOneWire::init\b',),
('RPM_ENABLED', 'AP_RPM::AP_RPM',),
('GPS_MOVING_BASELINE', r'AP_GPS_Backend::calculate_moving_base_yaw\b',),
('HAL_WITH_DSP', r'AP_HAL::DSP::find_peaks\b',),
('HAL_DISPLAY_ENABLED', r'Display::init\b',),
('HAL_NMEA_OUTPUT_ENABLED', r'AP_NMEA_Output::update\b',),
('HAL_BARO_WIND_COMP_ENABLED', r'AP_Baro::wind_pressure_correction\b',),
]
def progress(self, string):
'''pretty-print progress'''
print("EF: %s" % string)
def run_program(self, prefix, cmd_list, show_output=True, env=None):
'''swiped from build_binaries.py'''
if show_output:
self.progress("Running (%s)" % " ".join(cmd_list))
p = subprocess.Popen(cmd_list, bufsize=1, stdin=None,
stdout=subprocess.PIPE, close_fds=True,
stderr=subprocess.STDOUT, env=env)
output = ""
while True:
x = p.stdout.readline()
if len(x) == 0:
returncode = os.waitpid(p.pid, 0)
if returncode:
break
# select not available on Windows... probably...
time.sleep(0.1)
continue
if running_python3:
x = bytearray(x)
x = filter(lambda x : chr(x) in string.printable, x)
x = "".join([chr(c) for c in x])
output += x
x = x.rstrip()
if show_output:
print("%s: %s" % (prefix, x))
(_, status) = returncode
if status != 0 and show_output:
self.progress("Process failed (%s)" %
str(returncode))
raise subprocess.CalledProcessError(
returncode, cmd_list)
return output
class Symbols(object):
def __init__(self):
self.symbols = dict()
self.symbols_without_arguments = dict()
def add(self, key, attributes):
self.symbols[key] = attributes
# also keep around the same symbol name without arguments.
# if the key is already present then the attributes become
# None as there are multiple possible answers...
m = re.match("^([^(]+).*", key)
if m is None:
extracted_symbol_name = key
else:
extracted_symbol_name = m.group(1)
# print("Adding (%s)" % str(extracted_symbol_name))
if extracted_symbol_name in self.symbols_without_arguments:
self.symbols_without_arguments[extracted_symbol_name] = None
else:
self.symbols_without_arguments[extracted_symbol_name] = attributes
def dict_for_symbol(self, symbol):
if '(' not in symbol:
some_dict = self.symbols_without_arguments
else:
some_dict = self.symbols
return some_dict
def extract_symbols_from_elf(self, filename):
'''parses ELF in filename, returns dict of symbols=>attributes'''
text_output = self.run_program('EF', [
self.nm,
'--demangle',
'--print-size',
filename
], show_output=False)
ret = ExtractFeatures.Symbols()
for line in text_output.split("\n"):
m = re.match("^([^ ]+) ([^ ]+) ([^ ]) (.*)", line.rstrip())
if m is None:
m = re.match("^([^ ]+) ([^ ]) (.*)", line.rstrip())
if m is None:
# raise ValueError("Did not match (%s)" % line)
# e.g. Did not match ( U _errno)
continue
(offset, symbol_type, symbol_name) = m.groups()
size = "0"
else:
(offset, size, symbol_type, symbol_name) = m.groups()
size = int(size, 16)
# print("symbol (%s) size %u" % (str(symbol_name), size))
ret.add(symbol_name, {
"size": size,
})
return ret
def run(self):
build_options_defines = set([x.define for x in build_options.BUILD_OPTIONS])
symbols = self.extract_symbols_from_elf(filename)
for (feature_define, symbol) in self.features:
some_dict = symbols.dict_for_symbol(symbol)
# look for symbols without arguments
# print("Looking for (%s)" % str(name))
for s in some_dict.keys():
m = re.match(symbol, s)
# print("matching %s with %s" % (symbol, s))
if m is None:
continue
d = m.groupdict()
for key in d.keys():
d[key] = d[key].upper()
# filter to just the defines present in
# build_options.py - otherwise we end up with (e.g.)
# AP_AIRSPEED_BACKEND_ENABLED, even 'though that
# doesn't exist in the ArduPilot codebase.
some_define = feature_define.format(**d)
if some_define not in build_options_defines:
continue
print(some_define)
if __name__ == '__main__':
parser = optparse.OptionParser("extract_features.py FILENAME")
cmd_opts, cmd_args = parser.parse_args()
if len(cmd_args) < 1:
parser.print_help()
sys.exit(1)
filename = cmd_args[0]
ef = ExtractFeatures(filename)
ef.run()
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