mirror of https://github.com/python/cpython
86 lines
2.6 KiB
Python
86 lines
2.6 KiB
Python
import marshal
|
|
import bkfile
|
|
|
|
|
|
# Write a file containing frozen code for the modules in the dictionary.
|
|
|
|
header = """
|
|
#include "Python.h"
|
|
|
|
static struct _frozen _PyImport_FrozenModules[] = {
|
|
"""
|
|
trailer = """\
|
|
{0, 0, 0} /* sentinel */
|
|
};
|
|
"""
|
|
|
|
# if __debug__ == 0 (i.e. -O option given), set Py_OptimizeFlag in frozen app.
|
|
default_entry_point = """
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
extern int Py_FrozenMain(int, char **);
|
|
""" + ((not __debug__ and """
|
|
Py_OptimizeFlag++;
|
|
""") or "") + """
|
|
PyImport_FrozenModules = _PyImport_FrozenModules;
|
|
return Py_FrozenMain(argc, argv);
|
|
}
|
|
|
|
"""
|
|
|
|
def makefreeze(base, dict, debug=0, entry_point=None, fail_import=()):
|
|
if entry_point is None: entry_point = default_entry_point
|
|
done = []
|
|
files = []
|
|
mods = sorted(dict.keys())
|
|
for mod in mods:
|
|
m = dict[mod]
|
|
mangled = "__".join(mod.split("."))
|
|
if m.__code__:
|
|
file = 'M_' + mangled + '.c'
|
|
with bkfile.open(base + file, 'w') as outfp:
|
|
files.append(file)
|
|
if debug:
|
|
print("freezing", mod, "...")
|
|
str = marshal.dumps(m.__code__)
|
|
size = len(str)
|
|
if m.__path__:
|
|
# Indicate package by negative size
|
|
size = -size
|
|
done.append((mod, mangled, size))
|
|
writecode(outfp, mangled, str)
|
|
if debug:
|
|
print("generating table of frozen modules")
|
|
with bkfile.open(base + 'frozen.c', 'w') as outfp:
|
|
for mod, mangled, size in done:
|
|
outfp.write('extern unsigned char M_%s[];\n' % mangled)
|
|
outfp.write(header)
|
|
for mod, mangled, size in done:
|
|
outfp.write('\t{"%s", M_%s, %d},\n' % (mod, mangled, size))
|
|
outfp.write('\n')
|
|
# The following modules have a NULL code pointer, indicating
|
|
# that the frozen program should not search for them on the host
|
|
# system. Importing them will *always* raise an ImportError.
|
|
# The zero value size is never used.
|
|
for mod in fail_import:
|
|
outfp.write('\t{"%s", NULL, 0},\n' % (mod,))
|
|
outfp.write(trailer)
|
|
outfp.write(entry_point)
|
|
return files
|
|
|
|
|
|
|
|
# Write a C initializer for a module containing the frozen python code.
|
|
# The array is called M_<mod>.
|
|
|
|
def writecode(fp, mod, data):
|
|
print('unsigned char M_%s[] = {' % mod, file=fp)
|
|
indent = ' ' * 4
|
|
for i in range(0, len(data), 16):
|
|
print(indent, file=fp, end='')
|
|
for c in bytes(data[i:i+16]):
|
|
print('%d,' % c, file=fp, end='')
|
|
print('', file=fp)
|
|
print('};', file=fp)
|