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104 lines
2.4 KiB
104 lines
2.4 KiB
6 years ago
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#! /usr/bin/env python3
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"""nm2def.py
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Helpers to extract symbols from Unix libs and auto-generate
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Windows definition files from them. Depends on nm(1). Tested
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on Linux and Solaris only (-p option to nm is for Solaris only).
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By Marc-Andre Lemburg, Aug 1998.
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Additional notes: the output of nm is supposed to look like this:
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acceler.o:
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000001fd T PyGrammar_AddAccelerators
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U PyGrammar_FindDFA
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00000237 T PyGrammar_RemoveAccelerators
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U _IO_stderr_
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U exit
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U fprintf
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U free
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U malloc
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U printf
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grammar1.o:
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00000000 T PyGrammar_FindDFA
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00000034 T PyGrammar_LabelRepr
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U _PyParser_TokenNames
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U abort
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U printf
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U sprintf
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...
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Even if this isn't the default output of your nm, there is generally an
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option to produce this format (since it is the original v7 Unix format).
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"""
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import os, sys
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PYTHONLIB = 'libpython%d.%d.a' % sys.version_info[:2]
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PC_PYTHONLIB = 'Python%d%d.dll' % sys.version_info[:2]
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NM = 'nm -p -g %s' # For Linux, use "nm -g %s"
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def symbols(lib=PYTHONLIB,types=('T','C','D')):
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lines = os.popen(NM % lib).readlines()
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lines = [s.strip() for s in lines]
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symbols = {}
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for line in lines:
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if len(line) == 0 or ':' in line:
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continue
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items = line.split()
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if len(items) != 3:
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continue
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address, type, name = items
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if type not in types:
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continue
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symbols[name] = address,type
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return symbols
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def export_list(symbols):
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data = []
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code = []
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for name,(addr,type) in symbols.items():
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if type in ('C','D'):
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data.append('\t'+name)
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else:
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code.append('\t'+name)
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data.sort()
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data.append('')
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code.sort()
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return ' DATA\n'.join(data)+'\n'+'\n'.join(code)
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# Definition file template
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DEF_TEMPLATE = """\
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EXPORTS
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%s
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"""
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# Special symbols that have to be included even though they don't
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# pass the filter
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SPECIALS = (
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)
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def filter_Python(symbols,specials=SPECIALS):
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for name in list(symbols.keys()):
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if name[:2] == 'Py' or name[:3] == '_Py':
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pass
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elif name not in specials:
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del symbols[name]
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def main():
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s = symbols(PYTHONLIB)
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filter_Python(s)
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exports = export_list(s)
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f = sys.stdout # open('PC/python_nt.def','w')
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f.write(DEF_TEMPLATE % (exports))
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f.close()
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if __name__ == '__main__':
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main()
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