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>
113 lines
2.3 KiB
C
113 lines
2.3 KiB
C
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#ifdef MACH_C_THREADS
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#include <mach/cthreads.h>
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#endif
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#ifdef HURD_C_THREADS
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#include <cthreads.h>
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#endif
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/*
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* Initialization.
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*/
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static void
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PyThread__init_thread(void)
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{
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#ifndef HURD_C_THREADS
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/* Roland McGrath said this should not be used since this is
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done while linking to threads */
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cthread_init();
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#else
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/* do nothing */
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;
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#endif
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}
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/*
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* Thread support.
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*/
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long
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PyThread_start_new_thread(void (*func)(void *), void *arg)
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{
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int success = 0; /* init not needed when SOLARIS_THREADS and */
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/* C_THREADS implemented properly */
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dprintf(("PyThread_start_new_thread called\n"));
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if (!initialized)
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PyThread_init_thread();
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/* looks like solaris detaches the thread to never rejoin
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* so well do it here
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*/
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cthread_detach(cthread_fork((cthread_fn_t) func, arg));
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return success < 0 ? -1 : 0;
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}
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long
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PyThread_get_thread_ident(void)
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{
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if (!initialized)
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PyThread_init_thread();
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return (long) cthread_self();
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}
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void
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PyThread_exit_thread(void)
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{
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dprintf(("PyThread_exit_thread called\n"));
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if (!initialized)
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exit(0);
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cthread_exit(0);
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}
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/*
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* Lock support.
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*/
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PyThread_type_lock
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PyThread_allocate_lock(void)
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{
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mutex_t lock;
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dprintf(("PyThread_allocate_lock called\n"));
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if (!initialized)
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PyThread_init_thread();
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lock = mutex_alloc();
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if (mutex_init(lock)) {
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perror("mutex_init");
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free((void *) lock);
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lock = 0;
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}
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dprintf(("PyThread_allocate_lock() -> %p\n", lock));
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return (PyThread_type_lock) lock;
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}
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void
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PyThread_free_lock(PyThread_type_lock lock)
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{
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dprintf(("PyThread_free_lock(%p) called\n", lock));
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mutex_free(lock);
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}
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int
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PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
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{
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int success = FALSE;
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dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
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if (waitflag) { /* blocking */
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mutex_lock((mutex_t)lock);
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success = TRUE;
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} else { /* non blocking */
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success = mutex_try_lock((mutex_t)lock);
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}
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dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
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return success;
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}
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void
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PyThread_release_lock(PyThread_type_lock lock)
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{
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dprintf(("PyThread_release_lock(%p) called\n", lock));
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mutex_unlock((mutex_t )lock);
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}
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