mirror of https://github.com/python/cpython
gh-100227: Only Use deepfreeze for the Main Interpreter (gh-103794)
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.
This commit is contained in:
Eric Snow
GitHub
parent
ae25855045
commit
19e4f757de
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@ -1194,7 +1194,7 @@ Tools/build/freeze_modules.py: $(FREEZE_MODULE)
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.PHONY: regen-frozen
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regen-frozen: Tools/build/freeze_modules.py $(FROZEN_FILES_IN)
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$(PYTHON_FOR_REGEN) $(srcdir)/Tools/build/freeze_modules.py
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$(PYTHON_FOR_REGEN) $(srcdir)/Tools/build/freeze_modules.py --frozen-modules
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@echo "The Makefile was updated, you may need to re-run make."
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############################################################################
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@ -41,6 +41,29 @@
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#include <stdbool.h>
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/* Includes for frozen modules: */
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#include "frozen_modules/importlib._bootstrap.h"
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#include "frozen_modules/importlib._bootstrap_external.h"
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#include "frozen_modules/zipimport.h"
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#include "frozen_modules/abc.h"
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#include "frozen_modules/codecs.h"
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#include "frozen_modules/io.h"
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#include "frozen_modules/_collections_abc.h"
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#include "frozen_modules/_sitebuiltins.h"
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#include "frozen_modules/genericpath.h"
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#include "frozen_modules/ntpath.h"
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#include "frozen_modules/posixpath.h"
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#include "frozen_modules/os.h"
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#include "frozen_modules/site.h"
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#include "frozen_modules/stat.h"
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#include "frozen_modules/importlib.util.h"
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#include "frozen_modules/importlib.machinery.h"
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#include "frozen_modules/runpy.h"
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#include "frozen_modules/__hello__.h"
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#include "frozen_modules/__phello__.h"
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#include "frozen_modules/__phello__.ham.h"
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#include "frozen_modules/__phello__.ham.eggs.h"
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#include "frozen_modules/__phello__.spam.h"
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#include "frozen_modules/frozen_only.h"
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/* End includes */
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#define GET_CODE(name) _Py_get_##name##_toplevel
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@ -78,46 +101,46 @@ extern PyObject *_Py_get_frozen_only_toplevel(void);
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/* End extern declarations */
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static const struct _frozen bootstrap_modules[] = {
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{"_frozen_importlib", NULL, 0, false, GET_CODE(importlib__bootstrap)},
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{"_frozen_importlib_external", NULL, 0, false, GET_CODE(importlib__bootstrap_external)},
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{"zipimport", NULL, 0, false, GET_CODE(zipimport)},
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{"_frozen_importlib", _Py_M__importlib__bootstrap, (int)sizeof(_Py_M__importlib__bootstrap), false, GET_CODE(importlib__bootstrap)},
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{"_frozen_importlib_external", _Py_M__importlib__bootstrap_external, (int)sizeof(_Py_M__importlib__bootstrap_external), false, GET_CODE(importlib__bootstrap_external)},
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{"zipimport", _Py_M__zipimport, (int)sizeof(_Py_M__zipimport), false, GET_CODE(zipimport)},
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{0, 0, 0} /* bootstrap sentinel */
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};
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static const struct _frozen stdlib_modules[] = {
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/* stdlib - startup, without site (python -S) */
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{"abc", NULL, 0, false, GET_CODE(abc)},
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{"codecs", NULL, 0, false, GET_CODE(codecs)},
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{"io", NULL, 0, false, GET_CODE(io)},
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{"abc", _Py_M__abc, (int)sizeof(_Py_M__abc), false, GET_CODE(abc)},
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{"codecs", _Py_M__codecs, (int)sizeof(_Py_M__codecs), false, GET_CODE(codecs)},
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{"io", _Py_M__io, (int)sizeof(_Py_M__io), false, GET_CODE(io)},
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/* stdlib - startup, with site */
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{"_collections_abc", NULL, 0, false, GET_CODE(_collections_abc)},
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{"_sitebuiltins", NULL, 0, false, GET_CODE(_sitebuiltins)},
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{"genericpath", NULL, 0, false, GET_CODE(genericpath)},
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{"ntpath", NULL, 0, false, GET_CODE(ntpath)},
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{"posixpath", NULL, 0, false, GET_CODE(posixpath)},
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{"os.path", NULL, 0, false, GET_CODE(posixpath)},
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{"os", NULL, 0, false, GET_CODE(os)},
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{"site", NULL, 0, false, GET_CODE(site)},
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{"stat", NULL, 0, false, GET_CODE(stat)},
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{"_collections_abc", _Py_M___collections_abc, (int)sizeof(_Py_M___collections_abc), false, GET_CODE(_collections_abc)},
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{"_sitebuiltins", _Py_M___sitebuiltins, (int)sizeof(_Py_M___sitebuiltins), false, GET_CODE(_sitebuiltins)},
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{"genericpath", _Py_M__genericpath, (int)sizeof(_Py_M__genericpath), false, GET_CODE(genericpath)},
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{"ntpath", _Py_M__ntpath, (int)sizeof(_Py_M__ntpath), false, GET_CODE(ntpath)},
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{"posixpath", _Py_M__posixpath, (int)sizeof(_Py_M__posixpath), false, GET_CODE(posixpath)},
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{"os.path", _Py_M__posixpath, (int)sizeof(_Py_M__posixpath), false, GET_CODE(posixpath)},
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{"os", _Py_M__os, (int)sizeof(_Py_M__os), false, GET_CODE(os)},
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{"site", _Py_M__site, (int)sizeof(_Py_M__site), false, GET_CODE(site)},
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{"stat", _Py_M__stat, (int)sizeof(_Py_M__stat), false, GET_CODE(stat)},
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/* runpy - run module with -m */
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{"importlib.util", NULL, 0, false, GET_CODE(importlib_util)},
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{"importlib.machinery", NULL, 0, false, GET_CODE(importlib_machinery)},
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{"runpy", NULL, 0, false, GET_CODE(runpy)},
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{"importlib.util", _Py_M__importlib_util, (int)sizeof(_Py_M__importlib_util), false, GET_CODE(importlib_util)},
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{"importlib.machinery", _Py_M__importlib_machinery, (int)sizeof(_Py_M__importlib_machinery), false, GET_CODE(importlib_machinery)},
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{"runpy", _Py_M__runpy, (int)sizeof(_Py_M__runpy), false, GET_CODE(runpy)},
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{0, 0, 0} /* stdlib sentinel */
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};
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static const struct _frozen test_modules[] = {
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{"__hello__", NULL, 0, false, GET_CODE(__hello__)},
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{"__hello_alias__", NULL, 0, false, GET_CODE(__hello__)},
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{"__phello_alias__", NULL, 0, true, GET_CODE(__hello__)},
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{"__phello_alias__.spam", NULL, 0, false, GET_CODE(__hello__)},
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{"__phello__", NULL, 0, true, GET_CODE(__phello__)},
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{"__phello__.__init__", NULL, 0, false, GET_CODE(__phello__)},
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{"__phello__.ham", NULL, 0, true, GET_CODE(__phello___ham)},
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{"__phello__.ham.__init__", NULL, 0, false, GET_CODE(__phello___ham)},
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{"__phello__.ham.eggs", NULL, 0, false, GET_CODE(__phello___ham_eggs)},
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{"__phello__.spam", NULL, 0, false, GET_CODE(__phello___spam)},
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{"__hello_only__", NULL, 0, false, GET_CODE(frozen_only)},
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{"__hello__", _Py_M____hello__, (int)sizeof(_Py_M____hello__), false, GET_CODE(__hello__)},
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{"__hello_alias__", _Py_M____hello__, (int)sizeof(_Py_M____hello__), false, GET_CODE(__hello__)},
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{"__phello_alias__", _Py_M____hello__, (int)sizeof(_Py_M____hello__), true, GET_CODE(__hello__)},
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{"__phello_alias__.spam", _Py_M____hello__, (int)sizeof(_Py_M____hello__), false, GET_CODE(__hello__)},
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{"__phello__", _Py_M____phello__, (int)sizeof(_Py_M____phello__), true, GET_CODE(__phello__)},
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{"__phello__.__init__", _Py_M____phello__, (int)sizeof(_Py_M____phello__), false, GET_CODE(__phello__)},
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{"__phello__.ham", _Py_M____phello___ham, (int)sizeof(_Py_M____phello___ham), true, GET_CODE(__phello___ham)},
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{"__phello__.ham.__init__", _Py_M____phello___ham, (int)sizeof(_Py_M____phello___ham), false, GET_CODE(__phello___ham)},
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{"__phello__.ham.eggs", _Py_M____phello___ham_eggs, (int)sizeof(_Py_M____phello___ham_eggs), false, GET_CODE(__phello___ham_eggs)},
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{"__phello__.spam", _Py_M____phello___spam, (int)sizeof(_Py_M____phello___spam), false, GET_CODE(__phello___spam)},
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{"__hello_only__", _Py_M__frozen_only, (int)sizeof(_Py_M__frozen_only), false, GET_CODE(frozen_only)},
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{0, 0, 0} /* test sentinel */
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};
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const struct _frozen *_PyImport_FrozenBootstrap = bootstrap_modules;
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@ -2021,9 +2021,9 @@ find_frozen(PyObject *nameobj, struct frozen_info *info)
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}
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static PyObject *
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unmarshal_frozen_code(struct frozen_info *info)
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unmarshal_frozen_code(PyInterpreterState *interp, struct frozen_info *info)
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{
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if (info->get_code) {
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if (info->get_code && _Py_IsMainInterpreter(interp)) {
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PyObject *code = info->get_code();
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assert(code != NULL);
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return code;
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@ -2070,7 +2070,7 @@ PyImport_ImportFrozenModuleObject(PyObject *name)
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set_frozen_error(status, name);
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return -1;
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}
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co = unmarshal_frozen_code(&info);
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co = unmarshal_frozen_code(tstate->interp, &info);
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if (co == NULL) {
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return -1;
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}
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@ -3528,7 +3528,8 @@ _imp_get_frozen_object_impl(PyObject *module, PyObject *name,
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return NULL;
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}
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PyObject *codeobj = unmarshal_frozen_code(&info);
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PyInterpreterState *interp = _PyInterpreterState_GET();
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PyObject *codeobj = unmarshal_frozen_code(interp, &info);
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if (dataobj != Py_None) {
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PyBuffer_Release(&buf);
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}
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