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#!/usr/bin/env python
#
# Copyright (c) 2012, Al Stone <ahs3@ahs3.net>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of version 2 (only) of the GNU General
# Public License as published by the Free Software Foundation.
#
import os
import os.path
import re
import subprocess
import sys
def main():
'''this scanner counts up the number of instances of #ifdef that
have an architecture name in them.
'''
path = sys.argv[2]
arches = ['__alpha__', '__alpha_ev[0-9]+__',
'__amd64__', '__x64_64__',
'__arm__', '__thumb__', '__TARGET_ARM_[0-9A-Z]+__',
'__convex__', '__convex_[0-9]+__',
'__epiphany__',
'__hppa__', '__PA_RISC[0-9]_[0-9]__', '__HPPA[0-9]+__',
'__PA[0-9][0-9]00__',
'__i[3-6]86__',
'__ia64__',
'__m68k__', '__mc680[0-9]0__', '__MC680[0-9]0__',
'__mips__', '__MIPS_ISA_MIPS[0-9]__',
'__powerpc__', '__ppc[0-9]*__',
'__sparc__',
'__sh[0-9]__',
'__s390__', '__s390x__',
'__TMS320[0-9A-Z]*__',
'__TMS470__',
]
cmd = 'grep -hr \'^#if[ \\t]*def.*\' %s' % path
count = 0
findings = ""
try:
prog = re.compile('|'.join(arches))
findings = subprocess.check_output(cmd, shell=True)
if findings:
for ii in findings.split('\n'):
if prog.search(ii):
count += 1
except subprocess.CalledProcessError, e:
if e.returncode == 1: # usually means nothing found
count = 0
else:
count = -1
result = 'Ifdef-Arch: %d' % count
return result
if __name__ == '__main__':
result = main()
print result
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