| Guido van Rossum | e7f3953 | 1998-08-10 13:12:22 +0000 | [diff] [blame^] | 1 | """nm2def.py |
| 2 | |
| 3 | Helpers to extract symbols from Unix libs and auto-generate |
| 4 | Windows definition files from them. Depends on nm(1). Tested |
| 5 | on Linux and Solaris only (-p option to nm is for Solaris only). |
| 6 | |
| 7 | By Marc-Andre Lemburg, Aug 1998. |
| 8 | |
| 9 | Additional notes: the output of nm is supposed to look like this: |
| 10 | |
| 11 | acceler.o: |
| 12 | 000001fd T PyGrammar_AddAccelerators |
| 13 | U PyGrammar_FindDFA |
| 14 | 00000237 T PyGrammar_RemoveAccelerators |
| 15 | U _IO_stderr_ |
| 16 | U exit |
| 17 | U fprintf |
| 18 | U free |
| 19 | U malloc |
| 20 | U printf |
| 21 | |
| 22 | grammar1.o: |
| 23 | 00000000 T PyGrammar_FindDFA |
| 24 | 00000034 T PyGrammar_LabelRepr |
| 25 | U _PyParser_TokenNames |
| 26 | U abort |
| 27 | U printf |
| 28 | U sprintf |
| 29 | |
| 30 | ... |
| 31 | |
| 32 | Even if this isn't the default output of your nm, there is generally an |
| 33 | option to produce this format (since it is the original v7 Unix format). |
| 34 | |
| 35 | """ |
| 36 | import os,re,string,sys |
| 37 | |
| 38 | PYTHONLIB = 'libpython'+sys.version[:3]+'.a' |
| 39 | PC_PYTHONLIB = 'Python'+sys.version[0]+sys.version[2]+'.dll' |
| 40 | NM = 'nm -p -g %s' # For Linux, use "nm -g %s" |
| 41 | |
| 42 | def symbols(lib=PYTHONLIB,types=('T','C','D')): |
| 43 | |
| 44 | lines = os.popen(NM % lib).readlines() |
| 45 | lines = map(string.strip,lines) |
| 46 | symbols = {} |
| 47 | for line in lines: |
| 48 | if len(line) == 0 or ':' in line: |
| 49 | continue |
| 50 | items = string.split(line) |
| 51 | if len(items) != 3: |
| 52 | continue |
| 53 | address, type, name = items |
| 54 | if type not in types: |
| 55 | continue |
| 56 | symbols[name] = address,type |
| 57 | return symbols |
| 58 | |
| 59 | def export_list(symbols): |
| 60 | |
| 61 | data = [] |
| 62 | code = [] |
| 63 | for name,(addr,type) in symbols.items(): |
| 64 | if type in ('C','D'): |
| 65 | data.append('\t'+name) |
| 66 | else: |
| 67 | code.append('\t'+name) |
| 68 | data.sort() |
| 69 | data.append('') |
| 70 | code.sort() |
| 71 | return string.join(data,' DATA\n')+'\n'+string.join(code,'\n') |
| 72 | |
| 73 | # Definition file template |
| 74 | DEF_TEMPLATE = """\ |
| 75 | EXPORTS |
| 76 | %s |
| 77 | """ |
| 78 | |
| 79 | # Special symbols that have to be included even though they don't |
| 80 | # pass the filter |
| 81 | SPECIALS = ( |
| 82 | ) |
| 83 | |
| 84 | def filter_Python(symbols,specials=SPECIALS): |
| 85 | |
| 86 | for name in symbols.keys(): |
| 87 | if name[:2] == 'Py' or name[:3] == '_Py': |
| 88 | pass |
| 89 | elif name not in specials: |
| 90 | del symbols[name] |
| 91 | |
| 92 | def main(): |
| 93 | |
| 94 | s = symbols(PYTHONLIB) |
| 95 | filter_Python(s) |
| 96 | exports = export_list(s) |
| 97 | f = sys.stdout # open('PC/python_nt.def','w') |
| 98 | f.write(DEF_TEMPLATE % (exports)) |
| 99 | f.close() |
| 100 | |
| 101 | if __name__ == '__main__': |
| 102 | main() |