EL4121 Embedded System / mbed-os

mbed-os

Dependents:   cobaLCDJoyMotor_Thread odometry_omni_3roda_v3 odometry_omni_3roda_v1 odometry_omni_3roda_v2 ... more

tools/dev/syms.py@0:b74591d5ab33, 2017-12-11 (annotated)

Committer:
be_bryan
Date:
Mon Dec 11 17:54:04 2017 +0000
Revision:
0:b74591d5ab33
motor ++

Who changed what in which revision?

UserRevisionLine numberNew contents of line
be_bryan 0:b74591d5ab33 1 """
be_bryan 0:b74591d5ab33 2 mbed SDK
be_bryan 0:b74591d5ab33 3 Copyright (c) 2011-2013 ARM Limited
be_bryan 0:b74591d5ab33 4
be_bryan 0:b74591d5ab33 5 Licensed under the Apache License, Version 2.0 (the "License");
be_bryan 0:b74591d5ab33 6 you may not use this file except in compliance with the License.
be_bryan 0:b74591d5ab33 7 You may obtain a copy of the License at
be_bryan 0:b74591d5ab33 8
be_bryan 0:b74591d5ab33 9 http://www.apache.org/licenses/LICENSE-2.0
be_bryan 0:b74591d5ab33 10
be_bryan 0:b74591d5ab33 11 Unless required by applicable law or agreed to in writing, software
be_bryan 0:b74591d5ab33 12 distributed under the License is distributed on an "AS IS" BASIS,
be_bryan 0:b74591d5ab33 13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
be_bryan 0:b74591d5ab33 14 See the License for the specific language governing permissions and
be_bryan 0:b74591d5ab33 15 limitations under the License.
be_bryan 0:b74591d5ab33 16
be_bryan 0:b74591d5ab33 17
be_bryan 0:b74591d5ab33 18 Utility to find which libraries could define a given symbol
be_bryan 0:b74591d5ab33 19 """
be_bryan 0:b74591d5ab33 20 from argparse import ArgumentParser
be_bryan 0:b74591d5ab33 21 from os.path import join, splitext
be_bryan 0:b74591d5ab33 22 from os import walk
be_bryan 0:b74591d5ab33 23 from subprocess import Popen, PIPE
be_bryan 0:b74591d5ab33 24
be_bryan 0:b74591d5ab33 25
be_bryan 0:b74591d5ab33 26 OBJ_EXT = ['.o', '.a', '.ar']
be_bryan 0:b74591d5ab33 27
be_bryan 0:b74591d5ab33 28
be_bryan 0:b74591d5ab33 29 def find_sym_in_lib(sym, obj_path):
be_bryan 0:b74591d5ab33 30 contain_symbol = False
be_bryan 0:b74591d5ab33 31
be_bryan 0:b74591d5ab33 32 out = Popen(["nm", "-C", obj_path], stdout=PIPE, stderr=PIPE).communicate()[0]
be_bryan 0:b74591d5ab33 33 for line in out.splitlines():
be_bryan 0:b74591d5ab33 34 tokens = line.split()
be_bryan 0:b74591d5ab33 35 n = len(tokens)
be_bryan 0:b74591d5ab33 36 if n == 2:
be_bryan 0:b74591d5ab33 37 sym_type = tokens[0]
be_bryan 0:b74591d5ab33 38 sym_name = tokens[1]
be_bryan 0:b74591d5ab33 39 elif n == 3:
be_bryan 0:b74591d5ab33 40 sym_type = tokens[1]
be_bryan 0:b74591d5ab33 41 sym_name = tokens[2]
be_bryan 0:b74591d5ab33 42 else:
be_bryan 0:b74591d5ab33 43 continue
be_bryan 0:b74591d5ab33 44
be_bryan 0:b74591d5ab33 45 if sym_type == "U":
be_bryan 0:b74591d5ab33 46 # This object is using this symbol, not defining it
be_bryan 0:b74591d5ab33 47 continue
be_bryan 0:b74591d5ab33 48
be_bryan 0:b74591d5ab33 49 if sym_name == sym:
be_bryan 0:b74591d5ab33 50 contain_symbol = True
be_bryan 0:b74591d5ab33 51
be_bryan 0:b74591d5ab33 52 return contain_symbol
be_bryan 0:b74591d5ab33 53
be_bryan 0:b74591d5ab33 54
be_bryan 0:b74591d5ab33 55 def find_sym_in_path(sym, dir_path):
be_bryan 0:b74591d5ab33 56 for root, _, files in walk(dir_path):
be_bryan 0:b74591d5ab33 57 for file in files:
be_bryan 0:b74591d5ab33 58
be_bryan 0:b74591d5ab33 59 _, ext = splitext(file)
be_bryan 0:b74591d5ab33 60 if ext not in OBJ_EXT: continue
be_bryan 0:b74591d5ab33 61
be_bryan 0:b74591d5ab33 62 path = join(root, file)
be_bryan 0:b74591d5ab33 63 if find_sym_in_lib(sym, path):
be_bryan 0:b74591d5ab33 64 print path
be_bryan 0:b74591d5ab33 65
be_bryan 0:b74591d5ab33 66
be_bryan 0:b74591d5ab33 67 if __name__ == '__main__':
be_bryan 0:b74591d5ab33 68 parser = ArgumentParser(description='Find Symbol')
be_bryan 0:b74591d5ab33 69 parser.add_argument('-s', '--sym', required=True,
be_bryan 0:b74591d5ab33 70 help='The symbol to be searched')
be_bryan 0:b74591d5ab33 71 parser.add_argument('-p', '--path', required=True,
be_bryan 0:b74591d5ab33 72 help='The path where to search')
be_bryan 0:b74591d5ab33 73 args = parser.parse_args()
be_bryan 0:b74591d5ab33 74
be_bryan 0:b74591d5ab33 75 find_sym_in_path(args.sym, args.path)