cpython/Python/frozen.c

128 lines
5.4 KiB
C

/* Frozen modules initializer
*
* Frozen modules are written to header files by Programs/_freeze_module.
* These files are typically put in Python/frozen_modules/. Each holds
* an array of bytes named "_Py_M__<module>", which is used below.
*
* These files must be regenerated any time the corresponding .pyc
* file would change (including with changes to the compiler, bytecode
* format, marshal format). This can be done with "make regen-frozen".
* That make target just runs Tools/scripts/freeze_modules.py.
*
* The freeze_modules.py script also determines which modules get
* frozen. Update the list at the top of the script to add, remove,
* or modify the target modules. Then run the script
* (or run "make regen-frozen").
*
* The script does the following:
*
* 1. run Programs/_freeze_module on the target modules
* 2. update the includes and _PyImport_FrozenModules[] in this file
* 3. update the FROZEN_FILES variable in Makefile.pre.in
* 4. update the per-module targets in Makefile.pre.in
* 5. update the lists of modules in PCbuild/_freeze_module.vcxproj and
* PCbuild/_freeze_module.vcxproj.filters
*
* (Note that most of the data in this file is auto-generated by the script.)
*
* Those steps can also be done manually, though this is not recommended.
* Expect such manual changes to be removed the next time
* freeze_modules.py runs.
* */
/* In order to test the support for frozen modules, by default we
define some simple frozen modules: __hello__, __phello__ (a package),
and __phello__.spam. Loading any will print some famous words... */
#include "Python.h"
#include "pycore_import.h"
/* Includes for frozen modules: */
#include "frozen_modules/importlib._bootstrap.h"
#include "frozen_modules/importlib._bootstrap_external.h"
#include "frozen_modules/zipimport.h"
#include "frozen_modules/abc.h"
#include "frozen_modules/codecs.h"
#include "frozen_modules/io.h"
#include "frozen_modules/_collections_abc.h"
#include "frozen_modules/_sitebuiltins.h"
#include "frozen_modules/genericpath.h"
#include "frozen_modules/ntpath.h"
#include "frozen_modules/posixpath.h"
#include "frozen_modules/os.h"
#include "frozen_modules/site.h"
#include "frozen_modules/stat.h"
#include "frozen_modules/__hello__.h"
#include "frozen_modules/__phello__.h"
#include "frozen_modules/__phello__.ham.h"
#include "frozen_modules/__phello__.ham.eggs.h"
#include "frozen_modules/__phello__.spam.h"
#include "frozen_modules/frozen_only.h"
/* End includes */
/* Note that a negative size indicates a package. */
static const struct _frozen _PyImport_FrozenModules[] = {
/* import system */
{"_frozen_importlib", _Py_M__importlib__bootstrap,
(int)sizeof(_Py_M__importlib__bootstrap)},
{"_frozen_importlib_external", _Py_M__importlib__bootstrap_external,
(int)sizeof(_Py_M__importlib__bootstrap_external)},
{"zipimport", _Py_M__zipimport, (int)sizeof(_Py_M__zipimport)},
/* stdlib - startup, without site (python -S) */
{"abc", _Py_M__abc, (int)sizeof(_Py_M__abc)},
{"codecs", _Py_M__codecs, (int)sizeof(_Py_M__codecs)},
{"io", _Py_M__io, (int)sizeof(_Py_M__io)},
/* stdlib - startup, with site */
{"_collections_abc", _Py_M___collections_abc,
(int)sizeof(_Py_M___collections_abc)},
{"_sitebuiltins", _Py_M___sitebuiltins, (int)sizeof(_Py_M___sitebuiltins)},
{"genericpath", _Py_M__genericpath, (int)sizeof(_Py_M__genericpath)},
{"ntpath", _Py_M__ntpath, (int)sizeof(_Py_M__ntpath)},
{"posixpath", _Py_M__posixpath, (int)sizeof(_Py_M__posixpath)},
{"os.path", _Py_M__posixpath, (int)sizeof(_Py_M__posixpath)},
{"os", _Py_M__os, (int)sizeof(_Py_M__os)},
{"site", _Py_M__site, (int)sizeof(_Py_M__site)},
{"stat", _Py_M__stat, (int)sizeof(_Py_M__stat)},
/* Test module */
{"__hello__", _Py_M____hello__, (int)sizeof(_Py_M____hello__)},
{"__hello_alias__", _Py_M____hello__, (int)sizeof(_Py_M____hello__)},
{"__phello_alias__", _Py_M____hello__, -(int)sizeof(_Py_M____hello__)},
{"__phello_alias__.spam", _Py_M____hello__, (int)sizeof(_Py_M____hello__)},
{"__phello__", _Py_M____phello__, -(int)sizeof(_Py_M____phello__)},
{"__phello__.__init__", _Py_M____phello__, (int)sizeof(_Py_M____phello__)},
{"__phello__.ham", _Py_M____phello___ham, -(int)sizeof(_Py_M____phello___ham)},
{"__phello__.ham.__init__", _Py_M____phello___ham,
(int)sizeof(_Py_M____phello___ham)},
{"__phello__.ham.eggs", _Py_M____phello___ham_eggs,
(int)sizeof(_Py_M____phello___ham_eggs)},
{"__phello__.spam", _Py_M____phello___spam,
(int)sizeof(_Py_M____phello___spam)},
{"__hello_only__", _Py_M__frozen_only, (int)sizeof(_Py_M__frozen_only)},
{0, 0, 0} /* modules sentinel */
};
static const struct _module_alias aliases[] = {
{"_frozen_importlib", "importlib._bootstrap"},
{"_frozen_importlib_external", "importlib._bootstrap_external"},
{"os.path", "posixpath"},
{"__hello_alias__", "__hello__"},
{"__phello_alias__", "__hello__"},
{"__phello_alias__.spam", "__hello__"},
{"__phello__.__init__", "<__phello__"},
{"__phello__.ham.__init__", "<__phello__.ham"},
{"__hello_only__", NULL},
{0, 0} /* aliases sentinel */
};
const struct _module_alias *_PyImport_FrozenAliases = aliases;
/* Embedding apps may change this pointer to point to their favorite
collection of frozen modules: */
const struct _frozen *PyImport_FrozenModules = _PyImport_FrozenModules;