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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.
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Misc/NEWS.d/next/Build/2021-12-01-17-28-39.bpo-45950.eEVLoz.rst
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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. |
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/* Frozen modules bootstrap | ||
* | ||
* Limited and restricted Python interpreter to run | ||
* "Tools/scripts/deepfreeze.py" on systems with no or older Python | ||
* interpreter. | ||
*/ | ||
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#include "Python.h" | ||
#include "pycore_import.h" | ||
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/* Includes for frozen modules: */ | ||
#include "Python/frozen_modules/importlib._bootstrap.h" | ||
#include "Python/frozen_modules/importlib._bootstrap_external.h" | ||
/* End includes */ | ||
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/* Note that a negative size indicates a package. */ | ||
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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)}, | ||
{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; | ||
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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; | ||
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/* Embedding apps may change this pointer to point to their favorite | ||
collection of frozen modules: */ | ||
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const struct _frozen *PyImport_FrozenModules = NULL; | ||
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int | ||
#ifdef MS_WINDOWS | ||
wmain(int argc, wchar_t **argv) | ||
#else | ||
main(int argc, char **argv) | ||
#endif | ||
{ | ||
PyStatus status; | ||
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PyConfig config; | ||
PyConfig_InitIsolatedConfig(&config); | ||
// don't warn, pybuilddir.txt does not exist yet | ||
config.pathconfig_warnings = 0; | ||
// parse arguments | ||
config.parse_argv = 1; | ||
// add current script dir to sys.path | ||
config.isolated = 0; | ||
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#ifdef MS_WINDOWS | ||
status = PyConfig_SetArgv(&config, argc, argv); | ||
#else | ||
status = PyConfig_SetBytesArgv(&config, argc, argv); | ||
#endif | ||
if (PyStatus_Exception(status)) { | ||
goto error; | ||
} | ||
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status = PyConfig_Read(&config); | ||
if (config.run_filename == NULL) { | ||
status = PyStatus_Error("Run filename expected"); | ||
goto error; | ||
} | ||
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#define CLEAR(ATTR) \ | ||
do { \ | ||
PyMem_RawFree(ATTR); \ | ||
ATTR = NULL; \ | ||
} while (0) | ||
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// isolate from system Python | ||
CLEAR(config.base_prefix); | ||
CLEAR(config.prefix); | ||
CLEAR(config.base_exec_prefix); | ||
CLEAR(config.exec_prefix); | ||
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status = Py_InitializeFromConfig(&config); | ||
if (PyStatus_Exception(status)) { | ||
goto error; | ||
} | ||
PyConfig_Clear(&config); | ||
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return Py_RunMain(); | ||
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error: | ||
PyConfig_Clear(&config); | ||
if (PyStatus_IsExit(status)) { | ||
return status.exitcode; | ||
} | ||
Py_ExitStatusException(status); | ||
} |
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