mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-09-05 00:11:10 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

bpo-45696: Deep-freeze selected modules (GH-29118)

Browse source 
This gains 10% or more in startup time for `python -c pass` on UNIX-ish systems.

The Makefile.pre.in generating code builds on Eric's work for bpo-45020, but the .c file generator is new.

Windows version TBD.
This commit is contained in:
Guido van Rossum 2021-11-10 18:01:53 -08:00 • committed by GitHub
parent fc9b622819
commit 1cbaa505d0
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
16 changed files with 808 additions and 56 deletions
Download patch file Download diff file Expand all files Collapse all files

45
Python/bootstrap_frozen.c Normal file
View file

@ -0,0 +1,45 @@
/* Frozen modules bootstrap */
/* This file is linked with "bootstrap Python"
which is used (only) to run Tools/scripts/deepfreeze.py. */
#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"
/* End includes */
/* Note that a negative size indicates a package. */
static const struct _frozen bootstrap_modules[] = {
{"_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)},
{0, 0, 0} /* bootstrap sentinel */
};
static const struct _frozen stdlib_modules[] = {
{0, 0, 0} /* stdlib sentinel */
};
static const struct _frozen test_modules[] = {
{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"},
{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;