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 @@
+/* Stuff to export relevant 'expat' entry points from pyexpat to other
+ * parser modules, such as cElementTree. */
+
+/* note: you must import expat.h before importing this module! */
+
+#define PyExpat_CAPI_MAGIC  "pyexpat.expat_CAPI 1.1"
+#define PyExpat_CAPSULE_NAME "pyexpat.expat_CAPI"
+
+struct PyExpat_CAPI 
+{
+    char* magic; /* set to PyExpat_CAPI_MAGIC */
+    int size; /* set to sizeof(struct PyExpat_CAPI) */
+    int MAJOR_VERSION;
+    int MINOR_VERSION;
+    int MICRO_VERSION;
+    /* pointers to selected expat functions.  add new functions at
+       the end, if needed */
+    const XML_LChar * (*ErrorString)(enum XML_Error code);
+    enum XML_Error (*GetErrorCode)(XML_Parser parser);
+    XML_Size (*GetErrorColumnNumber)(XML_Parser parser);
+    XML_Size (*GetErrorLineNumber)(XML_Parser parser);
+    enum XML_Status (*Parse)(
+        XML_Parser parser, const char *s, int len, int isFinal);
+    XML_Parser (*ParserCreate_MM)(
+        const XML_Char *encoding, const XML_Memory_Handling_Suite *memsuite,
+        const XML_Char *namespaceSeparator);
+    void (*ParserFree)(XML_Parser parser);
+    void (*SetCharacterDataHandler)(
+        XML_Parser parser, XML_CharacterDataHandler handler);
+    void (*SetCommentHandler)(
+        XML_Parser parser, XML_CommentHandler handler);
+    void (*SetDefaultHandlerExpand)(
+        XML_Parser parser, XML_DefaultHandler handler);
+    void (*SetElementHandler)(
+        XML_Parser parser, XML_StartElementHandler start,
+        XML_EndElementHandler end);
+    void (*SetNamespaceDeclHandler)(
+        XML_Parser parser, XML_StartNamespaceDeclHandler start,
+        XML_EndNamespaceDeclHandler end);
+    void (*SetProcessingInstructionHandler)(
+        XML_Parser parser, XML_ProcessingInstructionHandler handler);
+    void (*SetUnknownEncodingHandler)(
+        XML_Parser parser, XML_UnknownEncodingHandler handler,
+        void *encodingHandlerData);
+    void (*SetUserData)(XML_Parser parser, void *userData);
+    /* might be none for expat < 2.1.0 */
+    int (*SetHashSalt)(XML_Parser parser, unsigned long hash_salt);
+    /* always add new stuff to the end! */
+};
+