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>
59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
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/* Support for dynamic loading of extension modules */
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#include "dl.h"
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#include <errno.h>
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#include "Python.h"
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#include "importdl.h"
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#if defined(__hp9000s300)
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#define FUNCNAME_PATTERN "_init%.200s"
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#else
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#define FUNCNAME_PATTERN "init%.200s"
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#endif
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const struct filedescr _PyImport_DynLoadFiletab[] = {
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{SHLIB_EXT, "rb", C_EXTENSION},
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{"module"SHLIB_EXT, "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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dl_funcptr p;
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shl_t lib;
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int flags;
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char funcname[258];
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flags = BIND_FIRST | BIND_DEFERRED;
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if (Py_VerboseFlag) {
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flags = BIND_FIRST | BIND_IMMEDIATE |
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BIND_NONFATAL | BIND_VERBOSE;
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printf("shl_load %s\n",pathname);
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}
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lib = shl_load(pathname, flags, 0);
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/* XXX Chuck Blake once wrote that 0 should be BIND_NOSTART? */
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if (lib == NULL) {
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char buf[256];
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if (Py_VerboseFlag)
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perror(pathname);
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PyOS_snprintf(buf, sizeof(buf), "Failed to load %.200s",
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pathname);
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PyErr_SetString(PyExc_ImportError, buf);
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return NULL;
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}
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PyOS_snprintf(funcname, sizeof(funcname), FUNCNAME_PATTERN, shortname);
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if (Py_VerboseFlag)
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printf("shl_findsym %s\n", funcname);
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if (shl_findsym(&lib, funcname, TYPE_UNDEFINED, (void *) &p) == -1) {
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shl_unload(lib);
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p = NULL;
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}
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if (p == NULL && Py_VerboseFlag)
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perror(funcname);
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return p;
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}
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