mirror of
https://github.com/python/cpython
synced 2024-11-05 18:12:54 +00:00
19e4f757de
Deep-frozen code objects are cannot be shared (currently) by interpreters, due to how adaptive specialization can modify the bytecodes. We work around this by only using the deep-frozen objects in the main interpreter. This does incur a performance penalty for subinterpreters, which we may be able to resolve later.
168 lines
8.4 KiB
C
168 lines
8.4 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/build/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"
|
|
|
|
#include <stdbool.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/importlib.util.h"
|
|
#include "frozen_modules/importlib.machinery.h"
|
|
#include "frozen_modules/runpy.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 */
|
|
|
|
#define GET_CODE(name) _Py_get_##name##_toplevel
|
|
|
|
/* Start extern declarations */
|
|
extern PyObject *_Py_get_importlib__bootstrap_toplevel(void);
|
|
extern PyObject *_Py_get_importlib__bootstrap_external_toplevel(void);
|
|
extern PyObject *_Py_get_zipimport_toplevel(void);
|
|
extern PyObject *_Py_get_abc_toplevel(void);
|
|
extern PyObject *_Py_get_codecs_toplevel(void);
|
|
extern PyObject *_Py_get_io_toplevel(void);
|
|
extern PyObject *_Py_get__collections_abc_toplevel(void);
|
|
extern PyObject *_Py_get__sitebuiltins_toplevel(void);
|
|
extern PyObject *_Py_get_genericpath_toplevel(void);
|
|
extern PyObject *_Py_get_ntpath_toplevel(void);
|
|
extern PyObject *_Py_get_posixpath_toplevel(void);
|
|
extern PyObject *_Py_get_posixpath_toplevel(void);
|
|
extern PyObject *_Py_get_os_toplevel(void);
|
|
extern PyObject *_Py_get_site_toplevel(void);
|
|
extern PyObject *_Py_get_stat_toplevel(void);
|
|
extern PyObject *_Py_get_importlib_util_toplevel(void);
|
|
extern PyObject *_Py_get_importlib_machinery_toplevel(void);
|
|
extern PyObject *_Py_get_runpy_toplevel(void);
|
|
extern PyObject *_Py_get___hello___toplevel(void);
|
|
extern PyObject *_Py_get___hello___toplevel(void);
|
|
extern PyObject *_Py_get___hello___toplevel(void);
|
|
extern PyObject *_Py_get___hello___toplevel(void);
|
|
extern PyObject *_Py_get___phello___toplevel(void);
|
|
extern PyObject *_Py_get___phello___toplevel(void);
|
|
extern PyObject *_Py_get___phello___ham_toplevel(void);
|
|
extern PyObject *_Py_get___phello___ham_toplevel(void);
|
|
extern PyObject *_Py_get___phello___ham_eggs_toplevel(void);
|
|
extern PyObject *_Py_get___phello___spam_toplevel(void);
|
|
extern PyObject *_Py_get_frozen_only_toplevel(void);
|
|
/* End extern declarations */
|
|
|
|
static const struct _frozen bootstrap_modules[] = {
|
|
{"_frozen_importlib", _Py_M__importlib__bootstrap, (int)sizeof(_Py_M__importlib__bootstrap), false, GET_CODE(importlib__bootstrap)},
|
|
{"_frozen_importlib_external", _Py_M__importlib__bootstrap_external, (int)sizeof(_Py_M__importlib__bootstrap_external), false, GET_CODE(importlib__bootstrap_external)},
|
|
{"zipimport", _Py_M__zipimport, (int)sizeof(_Py_M__zipimport), false, GET_CODE(zipimport)},
|
|
{0, 0, 0} /* bootstrap sentinel */
|
|
};
|
|
static const struct _frozen stdlib_modules[] = {
|
|
/* stdlib - startup, without site (python -S) */
|
|
{"abc", _Py_M__abc, (int)sizeof(_Py_M__abc), false, GET_CODE(abc)},
|
|
{"codecs", _Py_M__codecs, (int)sizeof(_Py_M__codecs), false, GET_CODE(codecs)},
|
|
{"io", _Py_M__io, (int)sizeof(_Py_M__io), false, GET_CODE(io)},
|
|
|
|
/* stdlib - startup, with site */
|
|
{"_collections_abc", _Py_M___collections_abc, (int)sizeof(_Py_M___collections_abc), false, GET_CODE(_collections_abc)},
|
|
{"_sitebuiltins", _Py_M___sitebuiltins, (int)sizeof(_Py_M___sitebuiltins), false, GET_CODE(_sitebuiltins)},
|
|
{"genericpath", _Py_M__genericpath, (int)sizeof(_Py_M__genericpath), false, GET_CODE(genericpath)},
|
|
{"ntpath", _Py_M__ntpath, (int)sizeof(_Py_M__ntpath), false, GET_CODE(ntpath)},
|
|
{"posixpath", _Py_M__posixpath, (int)sizeof(_Py_M__posixpath), false, GET_CODE(posixpath)},
|
|
{"os.path", _Py_M__posixpath, (int)sizeof(_Py_M__posixpath), false, GET_CODE(posixpath)},
|
|
{"os", _Py_M__os, (int)sizeof(_Py_M__os), false, GET_CODE(os)},
|
|
{"site", _Py_M__site, (int)sizeof(_Py_M__site), false, GET_CODE(site)},
|
|
{"stat", _Py_M__stat, (int)sizeof(_Py_M__stat), false, GET_CODE(stat)},
|
|
|
|
/* runpy - run module with -m */
|
|
{"importlib.util", _Py_M__importlib_util, (int)sizeof(_Py_M__importlib_util), false, GET_CODE(importlib_util)},
|
|
{"importlib.machinery", _Py_M__importlib_machinery, (int)sizeof(_Py_M__importlib_machinery), false, GET_CODE(importlib_machinery)},
|
|
{"runpy", _Py_M__runpy, (int)sizeof(_Py_M__runpy), false, GET_CODE(runpy)},
|
|
{0, 0, 0} /* stdlib sentinel */
|
|
};
|
|
static const struct _frozen test_modules[] = {
|
|
{"__hello__", _Py_M____hello__, (int)sizeof(_Py_M____hello__), false, GET_CODE(__hello__)},
|
|
{"__hello_alias__", _Py_M____hello__, (int)sizeof(_Py_M____hello__), false, GET_CODE(__hello__)},
|
|
{"__phello_alias__", _Py_M____hello__, (int)sizeof(_Py_M____hello__), true, GET_CODE(__hello__)},
|
|
{"__phello_alias__.spam", _Py_M____hello__, (int)sizeof(_Py_M____hello__), false, GET_CODE(__hello__)},
|
|
{"__phello__", _Py_M____phello__, (int)sizeof(_Py_M____phello__), true, GET_CODE(__phello__)},
|
|
{"__phello__.__init__", _Py_M____phello__, (int)sizeof(_Py_M____phello__), false, GET_CODE(__phello__)},
|
|
{"__phello__.ham", _Py_M____phello___ham, (int)sizeof(_Py_M____phello___ham), true, GET_CODE(__phello___ham)},
|
|
{"__phello__.ham.__init__", _Py_M____phello___ham, (int)sizeof(_Py_M____phello___ham), false, GET_CODE(__phello___ham)},
|
|
{"__phello__.ham.eggs", _Py_M____phello___ham_eggs, (int)sizeof(_Py_M____phello___ham_eggs), false, GET_CODE(__phello___ham_eggs)},
|
|
{"__phello__.spam", _Py_M____phello___spam, (int)sizeof(_Py_M____phello___spam), false, GET_CODE(__phello___spam)},
|
|
{"__hello_only__", _Py_M__frozen_only, (int)sizeof(_Py_M__frozen_only), false, GET_CODE(frozen_only)},
|
|
{0, 0, 0} /* test sentinel */
|
|
};
|
|
const struct _frozen *_PyImport_FrozenBootstrap = bootstrap_modules;
|
|
const struct _frozen *_PyImport_FrozenStdlib = stdlib_modules;
|
|
const struct _frozen *_PyImport_FrozenTest = test_modules;
|
|
|
|
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 = NULL;
|