shenleiandClaude Opus 5
5fad769ee8
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>
33 lines
792 B
C
33 lines
792 B
C
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#ifndef Py_BITSET_H
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#define Py_BITSET_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Bitset interface */
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#define BYTE char
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typedef BYTE *bitset;
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bitset newbitset(int nbits);
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void delbitset(bitset bs);
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#define testbit(ss, ibit) (((ss)[BIT2BYTE(ibit)] & BIT2MASK(ibit)) != 0)
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int addbit(bitset bs, int ibit); /* Returns 0 if already set */
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int samebitset(bitset bs1, bitset bs2, int nbits);
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void mergebitset(bitset bs1, bitset bs2, int nbits);
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#define BITSPERBYTE (8*sizeof(BYTE))
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#define NBYTES(nbits) (((nbits) + BITSPERBYTE - 1) / BITSPERBYTE)
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#define BIT2BYTE(ibit) ((ibit) / BITSPERBYTE)
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#define BIT2SHIFT(ibit) ((ibit) % BITSPERBYTE)
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#define BIT2MASK(ibit) (1 << BIT2SHIFT(ibit))
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#define BYTE2BIT(ibyte) ((ibyte) * BITSPERBYTE)
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_BITSET_H */
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