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bpo-45950: Introduce Bootstrap Python again (#29859)

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The build system now uses a :program:`_bootstrap_python` interpreter for
freezing and deepfreezing again. To speed up build process the build tools
:program:`_bootstrap_python` and :program:`_freeze_module` are no longer
build with LTO.

Cross building depends on a build Python interpreter, which must have same
version and bytecode as target host Python.
This commit is contained in:
Christian Heimes 2021-12-03 17:01:11 +02:00 • committed by GitHub
parent ccb73a0d50
commit 84ca1232b0
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9 changed files with 185 additions and 71 deletions
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45
Python/bootstrap_frozen.c
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@ -1,45 +0,0 @@
/* 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;