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>
131 lines
2.6 KiB
C
131 lines
2.6 KiB
C
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#include <stdlib.h>
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#include <stdio.h>
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#include <errno.h>
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#include </usr/include/thread.h>
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#undef _POSIX_THREADS
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/*
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* Initialization.
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*/
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static void PyThread__init_thread(void)
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{
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}
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/*
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* Thread support.
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*/
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struct func_arg {
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void (*func)(void *);
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void *arg;
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};
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static void *
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new_func(void *funcarg)
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{
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void (*func)(void *);
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void *arg;
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func = ((struct func_arg *) funcarg)->func;
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arg = ((struct func_arg *) funcarg)->arg;
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free(funcarg);
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(*func)(arg);
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return 0;
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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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thread_t tid;
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struct func_arg *funcarg;
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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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funcarg = (struct func_arg *) malloc(sizeof(struct func_arg));
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funcarg->func = func;
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funcarg->arg = arg;
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if (thr_create(0, 0, new_func, funcarg,
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THR_DETACHED | THR_NEW_LWP, &tid)) {
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perror("thr_create");
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free((void *) funcarg);
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return -1;
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}
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return tid;
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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 thr_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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thr_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_t *) malloc(sizeof(mutex_t));
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if (mutex_init(lock, USYNC_THREAD, 0)) {
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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_destroy((mutex_t *) lock);
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free((void *) 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;
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dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
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if (waitflag)
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success = mutex_lock((mutex_t *) lock);
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else
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success = mutex_trylock((mutex_t *) lock);
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if (success < 0)
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perror(waitflag ? "mutex_lock" : "mutex_trylock");
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else
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success = !success; /* solaris does it the other way round */
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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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if (mutex_unlock((mutex_t *) lock))
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perror("mutex_unlock");
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}
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