mirror of https://github.com/ARMmbed/mbed-os.git
76 lines
2.1 KiB
Python
76 lines
2.1 KiB
Python
"""
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mbed SDK
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Copyright (c) 2011-2013 ARM Limited
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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Utility to find which libraries could define a given symbol
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"""
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from argparse import ArgumentParser
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from os.path import join, splitext
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from os import walk
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from subprocess import Popen, PIPE
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OBJ_EXT = ['.o', '.a', '.ar']
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def find_sym_in_lib(sym, obj_path):
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contain_symbol = False
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out = Popen(["nm", "-C", obj_path], stdout=PIPE, stderr=PIPE).communicate()[0]
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for line in out.splitlines():
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tokens = line.split()
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n = len(tokens)
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if n == 2:
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sym_type = tokens[0]
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sym_name = tokens[1]
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elif n == 3:
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sym_type = tokens[1]
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sym_name = tokens[2]
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else:
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continue
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if sym_type == "U":
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# This object is using this symbol, not defining it
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continue
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if sym_name == sym:
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contain_symbol = True
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return contain_symbol
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def find_sym_in_path(sym, dir_path):
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for root, _, files in walk(dir_path):
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for file in files:
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_, ext = splitext(file)
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if ext not in OBJ_EXT: continue
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path = join(root, file)
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if find_sym_in_lib(sym, path):
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print path
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if __name__ == '__main__':
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parser = ArgumentParser(description='Find Symbol')
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parser.add_argument('-s', '--sym', required=True,
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help='The symbol to be searched')
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parser.add_argument('-p', '--path', required=True,
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help='The path where to search')
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args = parser.parse_args()
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find_sym_in_path(args.sym, args.path)
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