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>
27 lines
561 B
C
27 lines
561 B
C
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/* Support for dynamic loading of extension modules */
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#include "dl.h"
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#include "Python.h"
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#include "importdl.h"
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extern char *Py_GetProgramName(void);
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const struct filedescr _PyImport_DynLoadFiletab[] = {
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{".o", "rb", C_EXTENSION},
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{"module.o", "rb", C_EXTENSION},
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{0, 0}
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};
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dl_funcptr _PyImport_GetDynLoadFunc(const char *fqname, const char *shortname,
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const char *pathname, FILE *fp)
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{
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char funcname[258];
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PyOS_snprintf(funcname, sizeof(funcname), "init%.200s", shortname);
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return dl_loadmod(Py_GetProgramName(), pathname, funcname);
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}
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