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https://github.com/python/cpython.git
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aaab30e00c
(with one small bugfix in bgen/bgen/scantools.py) This replaces string module functions with string methods for the stuff in the Tools directory. Several uses of string.letters etc. are still remaining.
90 lines
2.6 KiB
Python
90 lines
2.6 KiB
Python
import marshal
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import bkfile
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# Write a file containing frozen code for the modules in the dictionary.
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header = """
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#include "Python.h"
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static struct _frozen _PyImport_FrozenModules[] = {
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"""
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trailer = """\
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{0, 0, 0} /* sentinel */
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};
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"""
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# if __debug__ == 0 (i.e. -O option given), set Py_OptimizeFlag in frozen app.
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default_entry_point = """
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int
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main(int argc, char **argv)
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{
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extern int Py_FrozenMain(int, char **);
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""" + ((not __debug__ and """
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Py_OptimizeFlag++;
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""") or "") + """
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PyImport_FrozenModules = _PyImport_FrozenModules;
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return Py_FrozenMain(argc, argv);
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}
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"""
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def makefreeze(base, dict, debug=0, entry_point=None, fail_import=()):
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if entry_point is None: entry_point = default_entry_point
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done = []
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files = []
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mods = dict.keys()
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mods.sort()
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for mod in mods:
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m = dict[mod]
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mangled = "__".join(mod.split("."))
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if m.__code__:
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file = 'M_' + mangled + '.c'
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outfp = bkfile.open(base + file, 'w')
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files.append(file)
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if debug:
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print "freezing", mod, "..."
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str = marshal.dumps(m.__code__)
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size = len(str)
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if m.__path__:
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# Indicate package by negative size
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size = -size
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done.append((mod, mangled, size))
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writecode(outfp, mangled, str)
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outfp.close()
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if debug:
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print "generating table of frozen modules"
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outfp = bkfile.open(base + 'frozen.c', 'w')
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for mod, mangled, size in done:
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outfp.write('extern unsigned char M_%s[];\n' % mangled)
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outfp.write(header)
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for mod, mangled, size in done:
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outfp.write('\t{"%s", M_%s, %d},\n' % (mod, mangled, size))
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outfp.write('\n')
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# The following modules have a NULL code pointer, indicating
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# that the prozen program should not search for them on the host
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# system. Importing them will *always* raise an ImportError.
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# The zero value size is never used.
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for mod in fail_import:
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outfp.write('\t{"%s", NULL, 0},\n' % (mod,))
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outfp.write(trailer)
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outfp.write(entry_point)
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outfp.close()
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return files
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# Write a C initializer for a module containing the frozen python code.
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# The array is called M_<mod>.
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def writecode(outfp, mod, str):
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outfp.write('unsigned char M_%s[] = {' % mod)
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for i in range(0, len(str), 16):
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outfp.write('\n\t')
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for c in str[i:i+16]:
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outfp.write('%d,' % ord(c))
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outfp.write('\n};\n')
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## def writecode(outfp, mod, str):
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## outfp.write('unsigned char M_%s[%d] = "%s";\n' % (mod, len(str),
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## '\\"'.join(map(lambda s: `s`[1:-1], str.split('"')))))
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