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      1 #!/usr/bin/env python
      2 # -*- coding: utf-8 -*-
      3 
      4 # Copyright  2013 Intel Corporation
      5 #
      6 # Permission is hereby granted, free of charge, to any person obtaining a
      7 # copy of this software and associated documentation files (the "Software"),
      8 # to deal in the Software without restriction, including without limitation
      9 # the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10 # and/or sell copies of the Software, and to permit persons to whom the
     11 # Software is furnished to do so, subject to the following conditions:
     12 #
     13 # The above copyright notice and this permission notice (including the next
     14 # paragraph) shall be included in all copies or substantial portions of the
     15 # Software.
     16 #
     17 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     18 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     19 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     20 # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     21 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     22 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     23 # IN THE SOFTWARE.
     24 
     25 import sys
     26 import argparse
     27 import re
     28 import subprocess
     29 
     30 # Example usages:
     31 # ./gen-symbol-redefs.py i915/.libs/libi915_dri.a old_ i915 i830
     32 # ./gen-symbol-redefs.py r200/.libs/libr200_dri.a r200_ r200
     33 
     34 argparser = argparse.ArgumentParser(description="Generates #defines to hide driver global symbols outside of a driver's namespace.")
     35 argparser.add_argument("file",
     36                     metavar = 'file',
     37                     help='libdrivername.a file to read')
     38 argparser.add_argument("newprefix",
     39                     metavar = 'newprefix',
     40                     help='New prefix to give non-driver global symbols')
     41 argparser.add_argument('prefixes',
     42                        metavar='prefix',
     43                        nargs='*',
     44                        help='driver-specific prefixes')
     45 args = argparser.parse_args()
     46 
     47 stdout = subprocess.check_output(['nm', args.file])
     48 
     49 for line in stdout.splitlines():
     50     m = re.match("[0-9a-z]+ [BT] (.*)", line)
     51     if not m:
     52         continue
     53 
     54     symbol = m.group(1)
     55 
     56     has_good_prefix = re.match(args.newprefix, symbol) != None
     57     for prefix in args.prefixes:
     58         if re.match(prefix, symbol):
     59             has_good_prefix = True
     60             break
     61     if has_good_prefix:
     62         continue
     63 
     64     # This is the single public entrypoint.
     65     if re.match("__driDriverGetExtensions", symbol):
     66         continue
     67 
     68     print '#define {0:35} {1}{0}'.format(symbol, args.newprefix)
     69