Brian Daniels / mbed-tools

Fork of mbed-tools by Morpheus

Committer:
screamer
Date:
Wed Mar 30 16:23:44 2016 +0000
Revision:
0:4a2e5f0422d6
Initial revision

Who changed what in which revision?

UserRevisionLine numberNew contents of line
screamer 0:4a2e5f0422d6 1 """
screamer 0:4a2e5f0422d6 2 mbed SDK
screamer 0:4a2e5f0422d6 3 Copyright (c) 2011-2013 ARM Limited
screamer 0:4a2e5f0422d6 4
screamer 0:4a2e5f0422d6 5 Licensed under the Apache License, Version 2.0 (the "License");
screamer 0:4a2e5f0422d6 6 you may not use this file except in compliance with the License.
screamer 0:4a2e5f0422d6 7 You may obtain a copy of the License at
screamer 0:4a2e5f0422d6 8
screamer 0:4a2e5f0422d6 9 http://www.apache.org/licenses/LICENSE-2.0
screamer 0:4a2e5f0422d6 10
screamer 0:4a2e5f0422d6 11 Unless required by applicable law or agreed to in writing, software
screamer 0:4a2e5f0422d6 12 distributed under the License is distributed on an "AS IS" BASIS,
screamer 0:4a2e5f0422d6 13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
screamer 0:4a2e5f0422d6 14 See the License for the specific language governing permissions and
screamer 0:4a2e5f0422d6 15 limitations under the License.
screamer 0:4a2e5f0422d6 16
screamer 0:4a2e5f0422d6 17
screamer 0:4a2e5f0422d6 18 Utility to find which libraries could define a given symbol
screamer 0:4a2e5f0422d6 19 """
screamer 0:4a2e5f0422d6 20 from argparse import ArgumentParser
screamer 0:4a2e5f0422d6 21 from os.path import join, splitext
screamer 0:4a2e5f0422d6 22 from os import walk
screamer 0:4a2e5f0422d6 23 from subprocess import Popen, PIPE
screamer 0:4a2e5f0422d6 24
screamer 0:4a2e5f0422d6 25
screamer 0:4a2e5f0422d6 26 OBJ_EXT = ['.o', '.a', '.ar']
screamer 0:4a2e5f0422d6 27
screamer 0:4a2e5f0422d6 28
screamer 0:4a2e5f0422d6 29 def find_sym_in_lib(sym, obj_path):
screamer 0:4a2e5f0422d6 30 contain_symbol = False
screamer 0:4a2e5f0422d6 31
screamer 0:4a2e5f0422d6 32 out = Popen(["nm", "-C", obj_path], stdout=PIPE, stderr=PIPE).communicate()[0]
screamer 0:4a2e5f0422d6 33 for line in out.splitlines():
screamer 0:4a2e5f0422d6 34 tokens = line.split()
screamer 0:4a2e5f0422d6 35 n = len(tokens)
screamer 0:4a2e5f0422d6 36 if n == 2:
screamer 0:4a2e5f0422d6 37 sym_type = tokens[0]
screamer 0:4a2e5f0422d6 38 sym_name = tokens[1]
screamer 0:4a2e5f0422d6 39 elif n == 3:
screamer 0:4a2e5f0422d6 40 sym_type = tokens[1]
screamer 0:4a2e5f0422d6 41 sym_name = tokens[2]
screamer 0:4a2e5f0422d6 42 else:
screamer 0:4a2e5f0422d6 43 continue
screamer 0:4a2e5f0422d6 44
screamer 0:4a2e5f0422d6 45 if sym_type == "U":
screamer 0:4a2e5f0422d6 46 # This object is using this symbol, not defining it
screamer 0:4a2e5f0422d6 47 continue
screamer 0:4a2e5f0422d6 48
screamer 0:4a2e5f0422d6 49 if sym_name == sym:
screamer 0:4a2e5f0422d6 50 contain_symbol = True
screamer 0:4a2e5f0422d6 51
screamer 0:4a2e5f0422d6 52 return contain_symbol
screamer 0:4a2e5f0422d6 53
screamer 0:4a2e5f0422d6 54
screamer 0:4a2e5f0422d6 55 def find_sym_in_path(sym, dir_path):
screamer 0:4a2e5f0422d6 56 for root, _, files in walk(dir_path):
screamer 0:4a2e5f0422d6 57 for file in files:
screamer 0:4a2e5f0422d6 58
screamer 0:4a2e5f0422d6 59 _, ext = splitext(file)
screamer 0:4a2e5f0422d6 60 if ext not in OBJ_EXT: continue
screamer 0:4a2e5f0422d6 61
screamer 0:4a2e5f0422d6 62 path = join(root, file)
screamer 0:4a2e5f0422d6 63 if find_sym_in_lib(sym, path):
screamer 0:4a2e5f0422d6 64 print path
screamer 0:4a2e5f0422d6 65
screamer 0:4a2e5f0422d6 66
screamer 0:4a2e5f0422d6 67 if __name__ == '__main__':
screamer 0:4a2e5f0422d6 68 parser = ArgumentParser(description='Find Symbol')
screamer 0:4a2e5f0422d6 69 parser.add_argument('-s', '--sym', required=True,
screamer 0:4a2e5f0422d6 70 help='The symbol to be searched')
screamer 0:4a2e5f0422d6 71 parser.add_argument('-p', '--path', required=True,
screamer 0:4a2e5f0422d6 72 help='The path where to search')
screamer 0:4a2e5f0422d6 73 args = parser.parse_args()
screamer 0:4a2e5f0422d6 74
screamer 0:4a2e5f0422d6 75 find_sym_in_path(args.sym, args.path)