Mercurial > cpython-lru_cache-weakref

annotate Tools/scripts/nm2def.py @ 24042:63fbbed10714 legacy-trunk

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Simplify HTTPSConnection constructor. See discussion in SF bug 458463.
author Jeremy Hylton <jeremy@alum.mit.edu>
date Fri, 28 Jun 2002 23:38:14 +0000
parents 14a27acc755a
children 8a7a2f1f88f0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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809dcc1bbc21 Added #! line
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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,string,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 = map(string.strip,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 = string.split(line)
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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 string.join(data,' DATA\n')+'\n'+string.join(code,'\n')
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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()