from __future__ import generators import sys, os def read_symbols(file, type=None, dynamic=0): if dynamic: cmd = 'nm -D %s' % file else: cmd = 'nm %s' % file for line in os.popen(cmd, 'r'): if line[0] != ' ': # has an address as first bit of line while line[0] != ' ': line = line[1:] while line[0] == ' ': line = line[1:] # we should be up to "type symbolname" now sym_type = line[0] symbol = line[1:].strip() if not type or type == sym_type: yield symbol def main(): if len(sys.argv) != 3: sys.stderr.write('usage: coverage-check library.so wrapper.so\n') sys.exit(1) library = sys.argv[1] wrapper = sys.argv[2] # first create a dict with all referenced symbols in the wrapper # should really be a set, but a dict will do ... wrapper_symbols = {} for symbol in read_symbols(wrapper, type='U', dynamic=1): wrapper_symbols[symbol] = 1 # now go through the library looking for matches on the defined symbols: for symbol in read_symbols(library, type='T', dynamic=1): if symbol[0] == '_': continue if symbol not in wrapper_symbols: print symbol if __name__ == '__main__': main()