diff options
Diffstat (limited to 'longbow/src/python/site-packages/longbow/FileUtil.py')
-rwxr-xr-x | longbow/src/python/site-packages/longbow/FileUtil.py | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/longbow/src/python/site-packages/longbow/FileUtil.py b/longbow/src/python/site-packages/longbow/FileUtil.py new file mode 100755 index 00000000..ae3113f6 --- /dev/null +++ b/longbow/src/python/site-packages/longbow/FileUtil.py @@ -0,0 +1,102 @@ +#! /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 sys +import os +import csv +import subprocess + +def readFileLines(fileName): + ''' + Get the entire file into memory as a list of lines. + ''' + result = None + + with open(fileName, "r") as file: + result = file.readlines() + + return result + +def readFileString(fileName): + ''' + Get the entire file into memory as a python string. + ''' + result = None + + if fileName != None and len(fileName) > 0: + with open (fileName, "r") as file: + result = file.read() + + return result + +def sourceFileNameToName(sourceFileName): + ''' + Given the path to a source file, return the name without any path components or trailing suffix. + ''' + name = os.path.basename(sourceFileName) + return name.split(".")[0] + +def canonicalizeFunctionName(functionName): + ''' + Given a function name that contains the initial '_' character, + strip it and return a canonicalised form of the same name suitable for a source file. + ''' + if functionName[0] == "_": + functionName = functionName[1:] + return functionName + +def isReservedName(functionName): + ''' + Given a canonicalized name, determine if it is a reserved name according to ISO/IEC 9899:2011 and ANSI Sec. 4.1.2.1, + identifiers that begin with an underscore and either an uppercase letter or another underscore are always reserved for any use. + ''' + if functionName[0] == '_' and functionName[1] == '_': + return True + elif functionName[0] == '_' and functionName[1].isupper(): + return True + return False + +def getDarwinTestableFunctions(objectFileName): + ''' + Retrieve a set of local and global function names within a file. + ''' + command = [ "/usr/bin/nm", "-gUm", objectFileName ] + + output = subprocess.check_output(command) + lines = output.splitlines() + + external = [] + internal = [] + for line in lines: + if line: + fields = line.split(" ") + if (len(fields) > 1) and (fields[1] == "(__TEXT,__text)"): + functionName = canonicalizeFunctionName(fields[3]) + + if not isReservedName(functionName): + if fields[2] == "external": + external.append( ( functionName ) ) + else: + internal.append( ( functionName ) ) + pass + pass + pass + pass + + external.sort() + internal.sort() + return { "Local": internal, "Global" : external } |