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some utils to help analysis macho files,include util to find which module call the symbol and the dependencies between the modules

Project description

MachoAnalysis is a collection of utils written in python2 to help developers analysis Mach-O Binaries.At this time,it can help us to figure out which module call some target functions,and the dependencies between the modules in a binary.


To figure out which module call some target functions,you can do this in your python script:

import macho_analysis;

module_array = macho_analysis.utils.findCallingSymbolModule("_NSLog","linkmap_path","disassemblyfile_path")];

The findCallingSymbolModule function take three arguments,which are the name of the symbol(in this case,is the _NSLog),the path to the linkmap file which is generated by xcode, and the path to disassembly code file generated by otool(otool -t -V -arch [arch] [macho_path]) util in xcode app.It returns an array contains the name of all the modules that call the symbol.

To find the dependencies between the modules,you can do this in your python script:

import macho_analysis;

lib_dep_hash = macho_analysis.utils.findDependency(lib_path_array,'armv7');

The findDependency function takes two arguments,the first is an array contains the paths to the libs,and the second is the arch name which will be passed to the nm utils in the xcode.It returns a dictionary,the key is the lib name,and its value is also a dictionary,which map the lib’s undefined symbol to the module that defines it.


We need xcode to run this tool.

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