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 +1,69 @@
+
+/* Python interpreter main program for frozen scripts */
+
+#include "Python.h"
+
+#ifdef MS_WINDOWS
+extern void PyWinFreeze_ExeInit(void);
+extern void PyWinFreeze_ExeTerm(void);
+extern int PyInitFrozenExtensions(void);
+#endif
+
+/* Main program */
+
+int
+Py_FrozenMain(int argc, char **argv)
+{
+    char *p;
+    int n, sts;
+    int inspect = 0;
+    int unbuffered = 0;
+
+    Py_FrozenFlag = 1; /* Suppress errors from getpath.c */
+
+    if ((p = Py_GETENV("PYTHONINSPECT")) && *p != '\0')
+        inspect = 1;
+    if ((p = Py_GETENV("PYTHONUNBUFFERED")) && *p != '\0')
+        unbuffered = 1;
+
+    if (unbuffered) {
+        setbuf(stdin, (char *)NULL);
+        setbuf(stdout, (char *)NULL);
+        setbuf(stderr, (char *)NULL);
+    }
+
+#ifdef MS_WINDOWS
+    PyInitFrozenExtensions();
+#endif /* MS_WINDOWS */
+    if (argc >= 1)
+        Py_SetProgramName(argv[0]);
+    Py_Initialize();
+#ifdef MS_WINDOWS
+    PyWinFreeze_ExeInit();
+#endif
+
+    if (Py_VerboseFlag)
+        fprintf(stderr, "Python %s\n%s\n",
+            Py_GetVersion(), Py_GetCopyright());
+
+    PySys_SetArgv(argc, argv);
+
+    n = PyImport_ImportFrozenModule("__main__");
+    if (n == 0)
+        Py_FatalError("__main__ not frozen");
+    if (n < 0) {
+        PyErr_Print();
+        sts = 1;
+    }
+    else
+        sts = 0;
+
+    if (inspect && isatty((int)fileno(stdin)))
+        sts = PyRun_AnyFile(stdin, "<stdin>") != 0;
+
+#ifdef MS_WINDOWS
+    PyWinFreeze_ExeTerm();
+#endif
+    Py_Finalize();
+    return sts;
+}