port 2P step 1: vendor CPython 2.7.18 as the mtpython static library

The embedded 40250 script layer needs its own interpreter on five platforms. 2.7 is end-of-life, so nothing can be fetched from the target SDKs and the source is vendored (official 2.7.18 tarball, trimmed to 25MB; Lib/ stays for step 3's python27.zip). cpython-2.7.18/CMakeLists.txt builds one `mtpython` static library from exactly the 133 objects the reference libpython2.7.a contains, off by default behind -DMTGODOT_EMBED_PYTHON=ON. The source list and the built-in module table (config/config.c, 39 entries) are shared; pyconfig.h is a probe result and is not, so each platform keeps its own under config/<platform>/, regenerated by tools/py_embed/gen_pyconfig.sh and checked against the shared table. Three vendor patches, documented in docs/THIRD-PARTY.md: configure/configure.ac learn arm64 on macOS, and posixmodule.c undefines the process-control calls it hard-defines past pyconfig.h when building for iOS. macOS (ctest python.embed: every builtin imports, codecs and pickle work off the vendored Lib/), Android arm64 and iOS arm64 build. Linux needs a Linux host and Windows needs a MinGW-vs-MSVC decision; both are noted for step 4. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-23 08:27:35 +09:00
parent a9b31dec67
commit 5fad769ee8
1018 changed files with 652582 additions and 19 deletions
@@ -0,0 +1,50 @@
+#ifndef Py_SLICEOBJECT_H
+#define Py_SLICEOBJECT_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* The unique ellipsis object "..." */
+
+PyAPI_DATA(PyObject) _Py_EllipsisObject; /* Don't use this directly */
+
+#define Py_Ellipsis (&_Py_EllipsisObject)
+
+/* Slice object interface */
+
+/*
+
+A slice object containing start, stop, and step data members (the
+names are from range).  After much talk with Guido, it was decided to
+let these be any arbitrary python type.  Py_None stands for omitted values.
+*/
+
+typedef struct {
+    PyObject_HEAD
+    PyObject *start, *stop, *step;	/* not NULL */
+} PySliceObject;
+
+PyAPI_DATA(PyTypeObject) PySlice_Type;
+PyAPI_DATA(PyTypeObject) PyEllipsis_Type;
+
+#define PySlice_Check(op) (Py_TYPE(op) == &PySlice_Type)
+
+PyAPI_FUNC(PyObject *) PySlice_New(PyObject* start, PyObject* stop,
+                                  PyObject* step);
+PyAPI_FUNC(PyObject *) _PySlice_FromIndices(Py_ssize_t start, Py_ssize_t stop);
+PyAPI_FUNC(int) PySlice_GetIndices(PySliceObject *r, Py_ssize_t length,
+                                  Py_ssize_t *start, Py_ssize_t *stop, Py_ssize_t *step);
+PyAPI_FUNC(int) PySlice_GetIndicesEx(PySliceObject *r, Py_ssize_t length,
+				    Py_ssize_t *start, Py_ssize_t *stop, 
+				    Py_ssize_t *step, Py_ssize_t *slicelength);
+
+PyAPI_FUNC(int) _PySlice_Unpack(PyObject *slice,
+                                Py_ssize_t *start, Py_ssize_t *stop, Py_ssize_t *step);
+PyAPI_FUNC(Py_ssize_t) _PySlice_AdjustIndices(Py_ssize_t length,
+                                              Py_ssize_t *start, Py_ssize_t *stop,
+                                              Py_ssize_t step);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !Py_SLICEOBJECT_H */