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 +1,55 @@
+
+/* SGI module -- random SGI-specific things */
+
+#include "Python.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+static PyObject *
+sgi_nap(PyObject *self, PyObject *args)
+{
+    long ticks;
+    if (!PyArg_ParseTuple(args, "l:nap", &ticks))
+        return NULL;
+    Py_BEGIN_ALLOW_THREADS
+    sginap(ticks);
+    Py_END_ALLOW_THREADS
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+
+extern char *_getpty(int *, int, mode_t, int);
+
+static PyObject *
+sgi__getpty(PyObject *self, PyObject *args)
+{
+    int oflag;
+    int mode;
+    int nofork;
+    char *name;
+    int fildes;
+    if (!PyArg_ParseTuple(args, "iii:_getpty", &oflag, &mode, &nofork))
+        return NULL;
+    errno = 0;
+    name = _getpty(&fildes, oflag, (mode_t)mode, nofork);
+    if (name == NULL) {
+        PyErr_SetFromErrno(PyExc_IOError);
+        return NULL;
+    }
+    return Py_BuildValue("(si)", name, fildes);
+}
+
+static PyMethodDef sgi_methods[] = {
+    {"nap",             sgi_nap,        METH_VARARGS},
+    {"_getpty",         sgi__getpty,    METH_VARARGS},
+    {NULL,              NULL}           /* sentinel */
+};
+
+
+void
+initsgi(void)
+{
+    Py_InitModule("sgi", sgi_methods);
+}