1 #

     2 # Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 # All rights reserved.

     4 # This component and the accompanying materials are made available

     5 # under the terms of "Eclipse Public License v1.0"

     6 # which accompanies this distribution, and is available

     7 # at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 #

     9 # Initial Contributors:

    10 # Nokia Corporation - initial contribution.

    11 #

    12 # Contributors:

    13 #

    14 # Description: 

    15 #

    16 

    17 import re, sys, glob, os.path

    18 from optparse import OptionParser

    19 

    20 # When defreezing, these entries can exist, but only at the beginning of the exports. 

    21 # Anything after these will be defrozen.

    22 ALLOWEDENTRIES = set(['_Z10jni_lookupPKc', '_Z13findDllMethodPKc'])

    23 

    24 # Pattern for entries

    25 RE_ENTRY = re.compile(r"^\s+([^ ]+) +@ +\d+ +NONAME( +ABSENT)?( *;.*)?$")

    26 

    27 # Transient exports which will be marked as absent.

    28 # See http://www.codesourcery.com/public/cxx-abi/abi.html#mangling for detailed 

    29 # de-mangling instructions

    30 TRANSIENTS = set([

    31     # TI = typeinfo structures

    32     '_ZTISi', # Si == ::std::basic_istream<char,  std::char_traits<char> >

    33     '_ZTISo', # So == ::std::basic_ostream<char,  std::char_traits<char> >

    34     '_ZTISd', # Sd == ::std::basic_iostream<char, std::char_traits<char> >

    35     '_ZTISt13basic_istreamIwSt11char_traitsIwEE',

    36     '_ZTISt13basic_ostreamIwSt11char_traitsIwEE',

    37     '_ZTISt14basic_iostreamIwSt11char_traitsIwEE',

    38     '_ZTISt15basic_streambufIwSt11char_traitsIwEE',

    39     '_ZTISt15basic_streambufIcSt11char_traitsIcEE',

    40     '_ZTISt13basic_filebufIcSt11char_traitsIcEE',

    41     '_ZTISt15basic_stringbufIcSt11char_traitsIcESaIcEE',

    42     '_ZTISt15basic_stringbufIwSt11char_traitsIwESaIwEE',

    43     '_ZTISt18basic_stringstreamIcSt11char_traitsIcESaIcEE',

    44     '_ZTISt18basic_stringstreamIwSt11char_traitsIwESaIwEE',

    45     '_ZTISt19basic_ostringstreamIcSt11char_traitsIcESaIcEE',

    46     '_ZTISt19basic_ostringstreamIwSt11char_traitsIwESaIwEE',

    47     '_ZTISt19basic_istringstreamIcSt11char_traitsIcESaIcEE',

    48     '_ZTISt19basic_istringstreamIwSt11char_traitsIwESaIwEE',

    49 

    50     # TV = virtual tables

    51     '_ZTVSi',

    52     '_ZTVSo',

    53     '_ZTVSd',

    54     '_ZTVSt13basic_istreamIwSt11char_traitsIwEE',

    55     '_ZTVSt13basic_ostreamIwSt11char_traitsIwEE',

    56     '_ZTVSt14basic_iostreamIwSt11char_traitsIwEE',

    57     '_ZTVSt15basic_streambufIwSt11char_traitsIwEE',

    58     '_ZTVSt15basic_streambufIcSt11char_traitsIcEE',

    59     '_ZTVSt13basic_filebufIcSt11char_traitsIcEE',

    60     '_ZTVSt15basic_stringbufIcSt11char_traitsIcESaIcEE',

    61     '_ZTVSt15basic_stringbufIwSt11char_traitsIwESaIwEE',

    62     '_ZTVSt18basic_stringstreamIcSt11char_traitsIcESaIcEE',

    63     '_ZTVSt18basic_stringstreamIwSt11char_traitsIwESaIwEE',

    64     '_ZTVSt19basic_ostringstreamIcSt11char_traitsIcESaIcEE',

    65     '_ZTVSt19basic_ostringstreamIwSt11char_traitsIwESaIwEE',

    66     '_ZTVSt19basic_istringstreamIcSt11char_traitsIcESaIcEE',

    67     '_ZTVSt19basic_istringstreamIwSt11char_traitsIwESaIwEE',

    68 

    69     # VTT structure (construction vtable index)

    70     '_ZTTSd',

    71     '_ZTTSi',

    72     '_ZTTSo',

    73     '_ZTTSt13basic_istreamIwSt11char_traitsIwEE',

    74     '_ZTTSt13basic_ostreamIwSt11char_traitsIwEE',

    75     '_ZTTSt14basic_ifstreamIcSt11char_traitsIcEE',

    76     '_ZTTSt14basic_iostreamIwSt11char_traitsIwEE',

    77     '_ZTTSt14basic_ofstreamIcSt11char_traitsIcEE',

    78     '_ZTTSt18basic_stringstreamIcSt11char_traitsIcESaIcEE',

    79     '_ZTTSt18basic_stringstreamIwSt11char_traitsIwESaIwEE',

    80     '_ZTTSt19basic_ostringstreamIcSt11char_traitsIcESaIcEE',

    81     '_ZTTSt19basic_ostringstreamIwSt11char_traitsIwESaIwEE',

    82     '_ZTTSt19basic_istringstreamIcSt11char_traitsIcESaIcEE',

    83     '_ZTTSt19basic_istringstreamIwSt11char_traitsIwESaIwEE'

    84 ])

    85 

    86 # These are produced only by 9.2, not by 5.0

    87 TRANSIENTS_92 = set([

    88     '_ZTTSd',

    89     '_ZTTSi',

    90     '_ZTTSo',

    91     '_ZTTSt13basic_istreamIwSt11char_traitsIwEE',

    92     '_ZTTSt13basic_ostreamIwSt11char_traitsIwEE',

    93     '_ZTTSt14basic_ifstreamIcSt11char_traitsIcEE',

    94     '_ZTTSt14basic_iostreamIwSt11char_traitsIwEE',

    95     '_ZTTSt14basic_ofstreamIcSt11char_traitsIcEE'

    96 ])

    97 

    98 # Only produced by stl4 - not by stl5

    99 TRANSIENTS_STL4 = set([

   100     '_ZTISi',

   101     '_ZTISt13basic_istreamIwSt11char_traitsIwEE',

   102     '_ZTVSi',

   103     '_ZTVSt13basic_istreamIwSt11char_traitsIwEE'

   104 ])

   105 

   106 

   107 # Only produced by stl5

   108 TRANSIENTS_STL5 = set([

   109     '_ZTISt15basic_streambufIcSt11char_traitsIcEE',

   110     '_ZTISt15basic_stringbufIcSt11char_traitsIcESaIcEE',

   111     '_ZTISt15basic_stringbufIwSt11char_traitsIwESaIwEE',

   112     '_ZTISt18basic_stringstreamIcSt11char_traitsIcESaIcEE',

   113     '_ZTISt18basic_stringstreamIwSt11char_traitsIwESaIwEE',

   114     '_ZTISt19basic_ostringstreamIcSt11char_traitsIcESaIcEE',

   115     '_ZTISt19basic_ostringstreamIwSt11char_traitsIwESaIwEE',

   116     '_ZTISt19basic_istringstreamIcSt11char_traitsIcESaIcEE',

   117     '_ZTISt19basic_istringstreamIwSt11char_traitsIwESaIwEE',

   118 

   119     '_ZTTSt18basic_stringstreamIcSt11char_traitsIcESaIcEE',

   120     '_ZTTSt18basic_stringstreamIwSt11char_traitsIwESaIwEE',

   121     '_ZTTSt19basic_ostringstreamIcSt11char_traitsIcESaIcEE',

   122     '_ZTTSt19basic_ostringstreamIwSt11char_traitsIwESaIwEE',

   123     '_ZTTSt19basic_istringstreamIcSt11char_traitsIcESaIcEE',

   124     '_ZTTSt19basic_istringstreamIwSt11char_traitsIwESaIwEE'

   125 

   126     '_ZTVSt15basic_streambufIcSt11char_traitsIcEE',

   127     '_ZTVSt15basic_stringbufIcSt11char_traitsIcESaIcEE',

   128     '_ZTVSt15basic_stringbufIwSt11char_traitsIwESaIwEE',

   129     '_ZTVSt18basic_stringstreamIcSt11char_traitsIcESaIcEE',

   130     '_ZTVSt18basic_stringstreamIwSt11char_traitsIwESaIwEE',

   131     '_ZTVSt19basic_ostringstreamIcSt11char_traitsIcESaIcEE',

   132     '_ZTVSt19basic_ostringstreamIwSt11char_traitsIwESaIwEE',

   133     '_ZTVSt19basic_istringstreamIcSt11char_traitsIcESaIcEE',

   134     '_ZTVSt19basic_istringstreamIwSt11char_traitsIwESaIwEE'

   135 ])

   136 

   137 TRANSIENTS_SPECIFIC = TRANSIENTS_92 | TRANSIENTS_STL4 | TRANSIENTS_STL5

   138 TRANSIENTS_COMMON = TRANSIENTS - TRANSIENTS_SPECIFIC

   139 

   140 def readExports(file):

   141     lines = [l.rstrip() for l in open(file).readlines()]

   142     if lines.pop(0) != "EXPORTS":

   143         raise Exception("File %s is not a deffile" % file)

   144 

   145     exports = []

   146     

   147     for l in lines:

   148         # Skip empty lines

   149         if len(l.strip()) == 0:

   150             continue

   151 

   152         # Read lines

   153         match = RE_ENTRY.match(l)

   154         if not match:

   155             raise Exception("Unrecognized line on file %s: %s" % (file, l))

   156 

   157         (export, absent, comment) = match.groups()

   158         exports.append((export, absent, comment))

   159 

   160         

   161     return exports

   162 

   163 def movelastTransients(exports):

   164     return  [e for e in exports if e[0] not in TRANSIENTS] + \

   165             [e for e in exports if e[0] in TRANSIENTS]

   166 

   167 def removeSpecific(exports):

   168     return  [e for e in exports if e[0] not in TRANSIENTS_SPECIFIC]

   169 

   170 def absentTransients(exports):

   171     newExports = []

   172     for e in exports:

   173         if e[0] in TRANSIENTS:

   174             e = (e[0], " ABSENT", e[2])

   175         newExports.append(e)

   176     return newExports

   177 

   178 def removeTransients(exports):

   179     return  [e for e in exports if e[0] not in TRANSIENTS]

   180 

   181 def defreeze(exports):

   182     defrozen = []

   183     for export, absent, comment in exports:

   184         if export in ALLOWEDENTRIES:

   185             defrozen.append((export, absent, comment))

   186         else:

   187             break

   188     return defrozen

   189 

   190 def generate(exports):

   191     output = "EXPORTS\n"

   192 

   193     for index in range(len(exports)):

   194         (export, absent, comment) = exports[index]

   195         output = output + "\t%s @ %i NONAME%s%s\n" % (

   196             export, index + 1, absent or "", comment or "")

   197     return output + "\n"

   198 

   199 def list(exports):

   200     return "\n    ".join(["'%s'," % e[0] for e in exports])

   201 

   202 

   203 def main():

   204     parser = OptionParser()

   205     parser.add_option("-f", dest = "outputFile")

   206     parser.add_option("-d", dest = "outputDir")

   207     parser.add_option("-o", dest = "overwrite",

   208                       action = "store_true", default = False)

   209     parser.add_option("--reorder", dest = "reorder",

   210                       action = "store_true", default = False,

   211                       help = "reorder transient exports to last")

   212     parser.add_option("--removeSpecific", dest = "removeSpecific",

   213                       action = "store_true", default = False,

   214                       help = "remove exports which are specific to some environment")

   215     parser.add_option("--removeTransients", dest = "removeTransients",

   216                       action = "store_true", default = False,

   217                       help = "remove all exports which are transients")

   218     parser.add_option("--absentify", dest = "absentify",

   219                       action = "store_true", default = False,

   220                       help = "make absent transients exports")

   221     parser.add_option("--defreeze", dest = "defreeze",

   222                       action = "store_true", default = False,

   223                       help = "defreeze all except configured exports")

   224     parser.add_option("--list", dest = "list",

   225                       action = "store_true", default = False)

   226     (options, args) = parser.parse_args()

   227 

   228     # Read

   229     for file in sum([glob.glob(arg) for arg in args], []):

   230         exports = readExports(file)

   231 

   232         # Modify

   233         if options.reorder:

   234             exports = movelastTransients(exports)

   235         if options.removeSpecific:

   236             exports = removeSpecific(exports)

   237         if options.absentify:

   238             exports = absentTransients(exports)

   239         if options.defreeze:

   240             exports = defreeze(exports)

   241         if options.removeTransients:

   242             exports = removeTransients(exports)

   243 

   244         # Generate / list

   245         if options.list:

   246             output = list(exports)

   247         else:

   248             output = generate(exports)

   249 

   250         # Write / print

   251         if options.outputFile:

   252             open(options.outputFile, "w").write(output)

   253         elif options.outputDir:

   254             open(os.path.join(options.outputDir, os.path.basename(file)), 

   255                  "w").write(output)

   256         elif options.overwrite:

   257             open(file, "w").write(output)

   258             print "Modified %s" % file

   259         else:

   260             print output        

   261 

   262 if __name__ == "__main__":

   263     main()

   264 

   265