A script by Mark-Andre Lemburg to produce the PC/python_nt.def file

automatically.

1 files changed, 102 insertions, 0 deletions

diff --git a/Tools/scripts/nm2def.py b/Tools/scripts/nm2def.py
new file mode 100755
index 0000000000..120c106224
--- /dev/null
+++ b/Tools/scripts/nm2def.py
@@ -0,0 +1,102 @@
+"""nm2def.py
+
+Helpers to extract symbols from Unix libs and auto-generate
+Windows definition files from them. Depends on nm(1). Tested
+on Linux and Solaris only (-p option to nm is for Solaris only).
+
+By Marc-Andre Lemburg, Aug 1998.
+
+Additional notes: the output of nm is supposed to look like this:
+
+acceler.o:
+000001fd T PyGrammar_AddAccelerators
+         U PyGrammar_FindDFA
+00000237 T PyGrammar_RemoveAccelerators
+         U _IO_stderr_
+         U exit
+         U fprintf
+         U free
+         U malloc
+         U printf
+
+grammar1.o:
+00000000 T PyGrammar_FindDFA
+00000034 T PyGrammar_LabelRepr
+         U _PyParser_TokenNames
+         U abort
+         U printf
+         U sprintf
+
+...
+
+Even if this isn't the default output of your nm, there is generally an
+option to produce this format (since it is the original v7 Unix format).
+
+"""
+import os,re,string,sys
+
+PYTHONLIB = 'libpython'+sys.version[:3]+'.a'
+PC_PYTHONLIB = 'Python'+sys.version[0]+sys.version[2]+'.dll'
+NM = 'nm -p -g %s'                      # For Linux, use "nm -g %s"
+
+def symbols(lib=PYTHONLIB,types=('T','C','D')):
+
+    lines = os.popen(NM % lib).readlines()
+    lines = map(string.strip,lines)
+    symbols = {}
+    for line in lines:
+	if len(line) == 0 or ':' in line:
+	    continue
+	items = string.split(line)
+	if len(items) != 3:
+	    continue
+	address, type, name = items
+	if type not in types:
+	    continue
+	symbols[name] = address,type
+    return symbols
+
+def export_list(symbols):
+
+    data = []
+    code = []
+    for name,(addr,type) in symbols.items():
+	if type in ('C','D'):
+	    data.append('\t'+name)
+	else:
+	    code.append('\t'+name)
+    data.sort()
+    data.append('')
+    code.sort()
+    return string.join(data,' DATA\n')+'\n'+string.join(code,'\n')
+
+# Definition file template
+DEF_TEMPLATE = """\
+EXPORTS
+%s
+"""
+
+# Special symbols that have to be included even though they don't
+# pass the filter
+SPECIALS = (
+    )
+
+def filter_Python(symbols,specials=SPECIALS):
+
+    for name in symbols.keys():
+	if name[:2] == 'Py' or name[:3] == '_Py':
+	    pass
+	elif name not in specials:
+	    del symbols[name]
+
+def main():
+
+    s = symbols(PYTHONLIB)
+    filter_Python(s)
+    exports = export_list(s)
+    f = sys.stdout # open('PC/python_nt.def','w')
+    f.write(DEF_TEMPLATE % (exports))
+    f.close()
+    
+if __name__ == '__main__':
+    main()