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#! /usr/bin/env python
# Copyright (c) 2017 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#
import os
import subprocess
import re
import sys
import pprint
def parseLocation(location):
token = location.split("[")
objectFileName = location
if len(token) > 1:
libraryName = token[0]
objectFileName = token[1].split("]")[0]
else:
libraryName = None
objectFileName = objectFileName.split(":")[0]
return (libraryName, objectFileName)
def parseDarwinOutput(lines, accumulator = { }):
for line in lines:
token = line.split(" ")
fullName = token[0]
libraryName, objectFileName = parseLocation(token[0])
name = token[1]
type = token[2]
if fullName in accumulator:
if type == "U":
accumulator[fullName]["undefined"].append({ "name" : name })
elif type == "T":
accumulator[fullName]["defined"].append({ "name" : name })
elif type == "D":
accumulator[fullName]["globalData"].append({ "name" : name })
else:
accumulator[fullName] = { "fullName" : fullName, "libraryName" : libraryName, "objectFileName" : objectFileName, "defined" : [], "undefined" : [], "globalData" : [] }
return accumulator
def getDarwinSymbolTable(objectFileName, accumulator = { }):
command = [ "/usr/bin/nm", "-PAog", objectFileName ]
output = subprocess.check_output(command)
lines = output.splitlines()
return parseDarwinOutput(lines, accumulator)
def getSymbolTable(objectFileName, accumulator = { }):
'''
{
fullName : { "defined" : list of dictionaries,
"undefined": list of dictionaries,
"globalData" : list of dictionaries,
"libraryName" : string
"objectFileName : string
},
}
'''
return getDarwinSymbolTable(objectFileName, accumulator)
if __name__ == '__main__':
table = dict()
for f in sys.argv:
table = getSymbolTable(f, table)
pp = pprint.PrettyPrinter(indent=4, width=132)
pp.pprint(table)
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