cpython/Programs/_bootstrap_python.c at doc-link-https · 180909/cpython · GitHub

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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.

#include "Python.h"

#include "pycore_import.h"

/* Includes for frozen modules: */

#include "Python/frozen_modules/importlib._bootstrap.h"

#include "Python/frozen_modules/importlib._bootstrap_external.h"

/* End includes */

/* Empty initializer for deepfrozen modules */

int _Py_Deepfreeze_Init(void)

{

return 0;

}

/* Empty finalizer for deepfrozen modules */

void

_Py_Deepfreeze_Fini(void)

{

}

/* 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)},

{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;

int

#ifdef MS_WINDOWS

wmain(int argc, wchar_t **argv)

#else

main(int argc, char **argv)

#endif

{

PyStatus status;

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;

config.safe_path = 0;

#ifdef MS_WINDOWS

status = PyConfig_SetArgv(&config, argc, argv);

#else

status = PyConfig_SetBytesArgv(&config, argc, argv);

#endif

if (PyStatus_Exception(status)) {

goto error;

}

status = PyConfig_Read(&config);

if (config.run_filename == NULL) {

status = PyStatus_Error("Run filename expected");

goto error;

}

#define CLEAR(ATTR) \

do { \

PyMem_RawFree(ATTR); \

ATTR = NULL; \

} while (0)

// isolate from system Python

CLEAR(config.base_prefix);

CLEAR(config.prefix);

CLEAR(config.base_exec_prefix);

CLEAR(config.exec_prefix);

status = Py_InitializeFromConfig(&config);

if (PyStatus_Exception(status)) {

goto error;

}

PyConfig_Clear(&config);

return Py_RunMain();

error:

PyConfig_Clear(&config);

if (PyStatus_IsExit(status)) {

return status.exitcode;

}

Py_ExitStatusException(status);

}

cpython/Programs/_bootstrap_python.c at doc-link-https · 180909/cpython · GitHub

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