joey shelton / LED_Demo2

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Dependencies:   MAX44000 PWM_Tone_Library nexpaq_mdk

Fork of LED_Demo by joey shelton

mbd_os/tools/dev/syms.py@1:55a6170b404f, 2016-09-17 (annotated)

Committer:
nexpaq
Date:
Sat Sep 17 16:32:05 2016 +0000
Revision:
1:55a6170b404f
checking in for sharing

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nexpaq 1:55a6170b404f 1 """
nexpaq 1:55a6170b404f 2 mbed SDK
nexpaq 1:55a6170b404f 3 Copyright (c) 2011-2013 ARM Limited
nexpaq 1:55a6170b404f 4
nexpaq 1:55a6170b404f 5 Licensed under the Apache License, Version 2.0 (the "License");
nexpaq 1:55a6170b404f 6 you may not use this file except in compliance with the License.
nexpaq 1:55a6170b404f 7 You may obtain a copy of the License at
nexpaq 1:55a6170b404f 8
nexpaq 1:55a6170b404f 9 http://www.apache.org/licenses/LICENSE-2.0
nexpaq 1:55a6170b404f 10
nexpaq 1:55a6170b404f 11 Unless required by applicable law or agreed to in writing, software
nexpaq 1:55a6170b404f 12 distributed under the License is distributed on an "AS IS" BASIS,
nexpaq 1:55a6170b404f 13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
nexpaq 1:55a6170b404f 14 See the License for the specific language governing permissions and
nexpaq 1:55a6170b404f 15 limitations under the License.
nexpaq 1:55a6170b404f 16
nexpaq 1:55a6170b404f 17
nexpaq 1:55a6170b404f 18 Utility to find which libraries could define a given symbol
nexpaq 1:55a6170b404f 19 """
nexpaq 1:55a6170b404f 20 from argparse import ArgumentParser
nexpaq 1:55a6170b404f 21 from os.path import join, splitext
nexpaq 1:55a6170b404f 22 from os import walk
nexpaq 1:55a6170b404f 23 from subprocess import Popen, PIPE
nexpaq 1:55a6170b404f 24
nexpaq 1:55a6170b404f 25
nexpaq 1:55a6170b404f 26 OBJ_EXT = ['.o', '.a', '.ar']
nexpaq 1:55a6170b404f 27
nexpaq 1:55a6170b404f 28
nexpaq 1:55a6170b404f 29 def find_sym_in_lib(sym, obj_path):
nexpaq 1:55a6170b404f 30 contain_symbol = False
nexpaq 1:55a6170b404f 31
nexpaq 1:55a6170b404f 32 out = Popen(["nm", "-C", obj_path], stdout=PIPE, stderr=PIPE).communicate()[0]
nexpaq 1:55a6170b404f 33 for line in out.splitlines():
nexpaq 1:55a6170b404f 34 tokens = line.split()
nexpaq 1:55a6170b404f 35 n = len(tokens)
nexpaq 1:55a6170b404f 36 if n == 2:
nexpaq 1:55a6170b404f 37 sym_type = tokens[0]
nexpaq 1:55a6170b404f 38 sym_name = tokens[1]
nexpaq 1:55a6170b404f 39 elif n == 3:
nexpaq 1:55a6170b404f 40 sym_type = tokens[1]
nexpaq 1:55a6170b404f 41 sym_name = tokens[2]
nexpaq 1:55a6170b404f 42 else:
nexpaq 1:55a6170b404f 43 continue
nexpaq 1:55a6170b404f 44
nexpaq 1:55a6170b404f 45 if sym_type == "U":
nexpaq 1:55a6170b404f 46 # This object is using this symbol, not defining it
nexpaq 1:55a6170b404f 47 continue
nexpaq 1:55a6170b404f 48
nexpaq 1:55a6170b404f 49 if sym_name == sym:
nexpaq 1:55a6170b404f 50 contain_symbol = True
nexpaq 1:55a6170b404f 51
nexpaq 1:55a6170b404f 52 return contain_symbol
nexpaq 1:55a6170b404f 53
nexpaq 1:55a6170b404f 54
nexpaq 1:55a6170b404f 55 def find_sym_in_path(sym, dir_path):
nexpaq 1:55a6170b404f 56 for root, _, files in walk(dir_path):
nexpaq 1:55a6170b404f 57 for file in files:
nexpaq 1:55a6170b404f 58
nexpaq 1:55a6170b404f 59 _, ext = splitext(file)
nexpaq 1:55a6170b404f 60 if ext not in OBJ_EXT: continue
nexpaq 1:55a6170b404f 61
nexpaq 1:55a6170b404f 62 path = join(root, file)
nexpaq 1:55a6170b404f 63 if find_sym_in_lib(sym, path):
nexpaq 1:55a6170b404f 64 print path
nexpaq 1:55a6170b404f 65
nexpaq 1:55a6170b404f 66
nexpaq 1:55a6170b404f 67 if __name__ == '__main__':
nexpaq 1:55a6170b404f 68 parser = ArgumentParser(description='Find Symbol')
nexpaq 1:55a6170b404f 69 parser.add_argument('-s', '--sym', required=True,
nexpaq 1:55a6170b404f 70 help='The symbol to be searched')
nexpaq 1:55a6170b404f 71 parser.add_argument('-p', '--path', required=True,
nexpaq 1:55a6170b404f 72 help='The path where to search')
nexpaq 1:55a6170b404f 73 args = parser.parse_args()
nexpaq 1:55a6170b404f 74
nexpaq 1:55a6170b404f 75 find_sym_in_path(args.sym, args.path)