| 1 | #! /usr/bin/env python
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| 2 | """nm2def.py
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| 3 |
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| 4 | Helpers to extract symbols from Unix libs and auto-generate
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| 5 | Windows definition files from them. Depends on nm(1). Tested
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| 6 | on Linux and Solaris only (-p option to nm is for Solaris only).
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| 7 |
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| 8 | By Marc-Andre Lemburg, Aug 1998.
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| 9 |
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| 10 | Additional notes: the output of nm is supposed to look like this:
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| 11 |
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| 12 | acceler.o:
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| 13 | 000001fd T PyGrammar_AddAccelerators
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| 14 | U PyGrammar_FindDFA
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| 15 | 00000237 T PyGrammar_RemoveAccelerators
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| 16 | U _IO_stderr_
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| 17 | U exit
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| 18 | U fprintf
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| 19 | U free
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| 20 | U malloc
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| 21 | U printf
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| 22 |
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| 23 | grammar1.o:
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| 24 | 00000000 T PyGrammar_FindDFA
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| 25 | 00000034 T PyGrammar_LabelRepr
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| 26 | U _PyParser_TokenNames
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| 27 | U abort
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| 28 | U printf
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| 29 | U sprintf
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| 30 |
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| 31 | ...
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| 32 |
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| 33 | Even if this isn't the default output of your nm, there is generally an
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| 34 | option to produce this format (since it is the original v7 Unix format).
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| 35 |
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| 36 | """
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| 37 | import os,re,sys
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| 38 |
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| 39 | PYTHONLIB = 'libpython'+sys.version[:3]+'.a'
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| 40 | PC_PYTHONLIB = 'Python'+sys.version[0]+sys.version[2]+'.dll'
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| 41 | NM = 'nm -p -g %s' # For Linux, use "nm -g %s"
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| 42 |
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| 43 | def symbols(lib=PYTHONLIB,types=('T','C','D')):
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| 44 |
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| 45 | lines = os.popen(NM % lib).readlines()
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| 46 | lines = [s.strip() for s in lines]
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| 47 | symbols = {}
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| 48 | for line in lines:
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| 49 | if len(line) == 0 or ':' in line:
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| 50 | continue
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| 51 | items = line.split()
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| 52 | if len(items) != 3:
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| 53 | continue
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| 54 | address, type, name = items
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| 55 | if type not in types:
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| 56 | continue
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| 57 | symbols[name] = address,type
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| 58 | return symbols
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| 59 |
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| 60 | def export_list(symbols):
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| 61 |
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| 62 | data = []
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| 63 | code = []
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| 64 | for name,(addr,type) in symbols.items():
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| 65 | if type in ('C','D'):
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| 66 | data.append('\t'+name)
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| 67 | else:
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| 68 | code.append('\t'+name)
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| 69 | data.sort()
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| 70 | data.append('')
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| 71 | code.sort()
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| 72 | return ' DATA\n'.join(data)+'\n'+'\n'.join(code)
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| 73 |
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| 74 | # Definition file template
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| 75 | DEF_TEMPLATE = """\
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| 76 | EXPORTS
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| 77 | %s
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| 78 | """
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| 79 |
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| 80 | # Special symbols that have to be included even though they don't
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| 81 | # pass the filter
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| 82 | SPECIALS = (
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| 83 | )
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| 84 |
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| 85 | def filter_Python(symbols,specials=SPECIALS):
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| 86 |
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| 87 | for name in symbols.keys():
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| 88 | if name[:2] == 'Py' or name[:3] == '_Py':
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| 89 | pass
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| 90 | elif name not in specials:
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| 91 | del symbols[name]
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| 92 |
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| 93 | def main():
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| 94 |
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| 95 | s = symbols(PYTHONLIB)
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| 96 | filter_Python(s)
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| 97 | exports = export_list(s)
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| 98 | f = sys.stdout # open('PC/python_nt.def','w')
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| 99 | f.write(DEF_TEMPLATE % (exports))
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| 100 | f.close()
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| 101 |
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| 102 | if __name__ == '__main__':
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| 103 | main()
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