Sync contrib/tools/python3 layout with upstream

* Move src/ subdir contents to the top of the layout
* Rename self-written lib -> lib2 to avoid CaseFolding warning from the VCS
* Regenerate contrib/libs/python proxy-headers accordingly
4ccc62ac1511abcf0fed14ccade38e984e088f1e

1 files changed, 162 insertions, 0 deletions

diff --git a/contrib/tools/python3/Python/frozen.c b/contrib/tools/python3/Python/frozen.c
new file mode 100644
index 0000000000..f8e0b8b065
--- /dev/null
+++ b/contrib/tools/python3/Python/frozen.c
@@ -0,0 +1,162 @@
+
+/* Frozen modules initializer
+ *
+ * Frozen modules are written to header files by Programs/_freeze_module.
+ * These files are typically put in Python/frozen_modules/.  Each holds
+ * an array of bytes named "_Py_M__<module>", which is used below.
+ *
+ * These files must be regenerated any time the corresponding .pyc
+ * file would change (including with changes to the compiler, bytecode
+ * format, marshal format).  This can be done with "make regen-frozen".
+ * That make target just runs Tools/build/freeze_modules.py.
+ *
+ * The freeze_modules.py script also determines which modules get
+ * frozen.  Update the list at the top of the script to add, remove,
+ * or modify the target modules.  Then run the script
+ * (or run "make regen-frozen").
+ *
+ * The script does the following:
+ *
+ * 1. run Programs/_freeze_module on the target modules
+ * 2. update the includes and _PyImport_FrozenModules[] in this file
+ * 3. update the FROZEN_FILES variable in Makefile.pre.in
+ * 4. update the per-module targets in Makefile.pre.in
+ * 5. update the lists of modules in PCbuild/_freeze_module.vcxproj and
+ *    PCbuild/_freeze_module.vcxproj.filters
+ *
+ * (Note that most of the data in this file is auto-generated by the script.)
+ *
+ * Those steps can also be done manually, though this is not recommended.
+ * Expect such manual changes to be removed the next time
+ * freeze_modules.py runs.
+ * */
+
+/* In order to test the support for frozen modules, by default we
+   define some simple frozen modules: __hello__, __phello__ (a package),
+   and __phello__.spam.  Loading any will print some famous words... */
+
+#include "Python.h"
+#include "pycore_import.h"
+
+#include <stdbool.h>
+
+/* Includes for frozen modules: */
+#include "frozen_modules/importlib._bootstrap.h"
+#include "frozen_modules/importlib._bootstrap_external.h"
+#include "frozen_modules/zipimport.h"
+#include "frozen_modules/abc.h"
+#include "frozen_modules/codecs.h"
+#include "frozen_modules/io.h"
+#include "frozen_modules/_collections_abc.h"
+#include "frozen_modules/_sitebuiltins.h"
+#include "frozen_modules/genericpath.h"
+#include "frozen_modules/ntpath.h"
+#include "frozen_modules/posixpath.h"
+#include "frozen_modules/os.h"
+#include "frozen_modules/site.h"
+#include "frozen_modules/stat.h"
+#include "frozen_modules/importlib.util.h"
+#include "frozen_modules/importlib.machinery.h"
+#include "frozen_modules/runpy.h"
+#include "frozen_modules/__hello__.h"
+#include "frozen_modules/__phello__.h"
+#include "frozen_modules/__phello__.ham.h"
+#include "frozen_modules/__phello__.ham.eggs.h"
+#include "frozen_modules/__phello__.spam.h"
+#include "frozen_modules/frozen_only.h"
+/* End includes */
+
+#define GET_CODE(name) _Py_get_##name##_toplevel
+
+/* Start extern declarations */
+extern PyObject *_Py_get_importlib__bootstrap_toplevel(void);
+extern PyObject *_Py_get_importlib__bootstrap_external_toplevel(void);
+extern PyObject *_Py_get_zipimport_toplevel(void);
+extern PyObject *_Py_get_abc_toplevel(void);
+extern PyObject *_Py_get_codecs_toplevel(void);
+extern PyObject *_Py_get_io_toplevel(void);
+extern PyObject *_Py_get__collections_abc_toplevel(void);
+extern PyObject *_Py_get__sitebuiltins_toplevel(void);
+extern PyObject *_Py_get_genericpath_toplevel(void);
+extern PyObject *_Py_get_ntpath_toplevel(void);
+extern PyObject *_Py_get_posixpath_toplevel(void);
+extern PyObject *_Py_get_os_toplevel(void);
+extern PyObject *_Py_get_site_toplevel(void);
+extern PyObject *_Py_get_stat_toplevel(void);
+extern PyObject *_Py_get_importlib_util_toplevel(void);
+extern PyObject *_Py_get_importlib_machinery_toplevel(void);
+extern PyObject *_Py_get_runpy_toplevel(void);
+extern PyObject *_Py_get___hello___toplevel(void);
+extern PyObject *_Py_get___phello___toplevel(void);
+extern PyObject *_Py_get___phello___ham_toplevel(void);
+extern PyObject *_Py_get___phello___ham_eggs_toplevel(void);
+extern PyObject *_Py_get___phello___spam_toplevel(void);
+extern PyObject *_Py_get_frozen_only_toplevel(void);
+/* End extern declarations */
+
+static const struct _frozen bootstrap_modules[] = {
+    {"_frozen_importlib", _Py_M__importlib__bootstrap, (int)sizeof(_Py_M__importlib__bootstrap), false, GET_CODE(importlib__bootstrap)},
+    {"_frozen_importlib_external", _Py_M__importlib__bootstrap_external, (int)sizeof(_Py_M__importlib__bootstrap_external), false, GET_CODE(importlib__bootstrap_external)},
+    {"zipimport", _Py_M__zipimport, (int)sizeof(_Py_M__zipimport), false, GET_CODE(zipimport)},
+    {0, 0, 0} /* bootstrap sentinel */
+};
+static const struct _frozen stdlib_modules[] = {
+    /* stdlib - startup, without site (python -S) */
+    {"abc", _Py_M__abc, (int)sizeof(_Py_M__abc), false, GET_CODE(abc)},
+    {"codecs", _Py_M__codecs, (int)sizeof(_Py_M__codecs), false, GET_CODE(codecs)},
+    {"io", _Py_M__io, (int)sizeof(_Py_M__io), false, GET_CODE(io)},
+
+    /* stdlib - startup, with site */
+    {"_collections_abc", _Py_M___collections_abc, (int)sizeof(_Py_M___collections_abc), false, GET_CODE(_collections_abc)},
+    {"_sitebuiltins", _Py_M___sitebuiltins, (int)sizeof(_Py_M___sitebuiltins), false, GET_CODE(_sitebuiltins)},
+    {"genericpath", _Py_M__genericpath, (int)sizeof(_Py_M__genericpath), false, GET_CODE(genericpath)},
+    {"ntpath", _Py_M__ntpath, (int)sizeof(_Py_M__ntpath), false, GET_CODE(ntpath)},
+    {"posixpath", _Py_M__posixpath, (int)sizeof(_Py_M__posixpath), false, GET_CODE(posixpath)},
+    {"os.path", _Py_M__posixpath, (int)sizeof(_Py_M__posixpath), false, GET_CODE(posixpath)},
+    {"os", _Py_M__os, (int)sizeof(_Py_M__os), false, GET_CODE(os)},
+    {"site", _Py_M__site, (int)sizeof(_Py_M__site), false, GET_CODE(site)},
+    {"stat", _Py_M__stat, (int)sizeof(_Py_M__stat), false, GET_CODE(stat)},
+
+    /* runpy - run module with -m */
+    {"importlib.util", _Py_M__importlib_util, (int)sizeof(_Py_M__importlib_util), false, GET_CODE(importlib_util)},
+    {"importlib.machinery", _Py_M__importlib_machinery, (int)sizeof(_Py_M__importlib_machinery), false, GET_CODE(importlib_machinery)},
+    {"runpy", _Py_M__runpy, (int)sizeof(_Py_M__runpy), false, GET_CODE(runpy)},
+    {0, 0, 0} /* stdlib sentinel */
+};
+static const struct _frozen test_modules[] = {
+    {"__hello__", _Py_M____hello__, (int)sizeof(_Py_M____hello__), false, GET_CODE(__hello__)},
+    {"__hello_alias__", _Py_M____hello__, (int)sizeof(_Py_M____hello__), false, GET_CODE(__hello__)},
+    {"__phello_alias__", _Py_M____hello__, (int)sizeof(_Py_M____hello__), true, GET_CODE(__hello__)},
+    {"__phello_alias__.spam", _Py_M____hello__, (int)sizeof(_Py_M____hello__), false, GET_CODE(__hello__)},
+    {"__phello__", _Py_M____phello__, (int)sizeof(_Py_M____phello__), true, GET_CODE(__phello__)},
+    {"__phello__.__init__", _Py_M____phello__, (int)sizeof(_Py_M____phello__), false, GET_CODE(__phello__)},
+    {"__phello__.ham", _Py_M____phello___ham, (int)sizeof(_Py_M____phello___ham), true, GET_CODE(__phello___ham)},
+    {"__phello__.ham.__init__", _Py_M____phello___ham, (int)sizeof(_Py_M____phello___ham), false, GET_CODE(__phello___ham)},
+    {"__phello__.ham.eggs", _Py_M____phello___ham_eggs, (int)sizeof(_Py_M____phello___ham_eggs), false, GET_CODE(__phello___ham_eggs)},
+    {"__phello__.spam", _Py_M____phello___spam, (int)sizeof(_Py_M____phello___spam), false, GET_CODE(__phello___spam)},
+    {"__hello_only__", _Py_M__frozen_only, (int)sizeof(_Py_M__frozen_only), false, GET_CODE(frozen_only)},
+    {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"},
+    {"os.path", "posixpath"},
+    {"__hello_alias__", "__hello__"},
+    {"__phello_alias__", "__hello__"},
+    {"__phello_alias__.spam", "__hello__"},
+    {"__phello__.__init__", "<__phello__"},
+    {"__phello__.ham.__init__", "<__phello__.ham"},
+    {"__hello_only__", NULL},
+    {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;