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>
179 lines
2.5 KiB
C
179 lines
2.5 KiB
C
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/* Check for interrupts */
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#include "Python.h"
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#include "pythread.h"
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#ifdef QUICKWIN
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#include <io.h>
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void
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PyOS_InitInterrupts(void)
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{
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}
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void
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PyOS_FiniInterrupts(void)
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{
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}
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int
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PyOS_InterruptOccurred(void)
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{
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_wyield();
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}
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#define OK
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#endif /* QUICKWIN */
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#if defined(_M_IX86) && !defined(__QNX__)
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#include <io.h>
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#endif
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#if defined(MSDOS) && !defined(QUICKWIN)
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#ifdef __GNUC__
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/* This is for DJGPP's GO32 extender. I don't know how to trap
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* control-C (There's no API for ctrl-C, and I don't want to mess with
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* the interrupt vectors.) However, this DOES catch control-break.
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* --Amrit
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*/
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#include <go32.h>
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void
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PyOS_InitInterrupts(void)
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{
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_go32_want_ctrl_break(1 /* TRUE */);
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}
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void
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PyOS_FiniInterrupts(void)
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{
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}
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int
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PyOS_InterruptOccurred(void)
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{
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return _go32_was_ctrl_break_hit();
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}
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#else /* !__GNUC__ */
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/* This might work for MS-DOS (untested though): */
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void
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PyOS_InitInterrupts(void)
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{
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}
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void
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PyOS_FiniInterrupts(void)
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{
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}
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int
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PyOS_InterruptOccurred(void)
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{
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int interrupted = 0;
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while (kbhit()) {
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if (getch() == '\003')
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interrupted = 1;
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}
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return interrupted;
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}
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#endif /* __GNUC__ */
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#define OK
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#endif /* MSDOS && !QUICKWIN */
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#ifndef OK
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/* Default version -- for real operating systems and for Standard C */
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#include <stdio.h>
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#include <string.h>
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#include <signal.h>
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static int interrupted;
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void
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PyErr_SetInterrupt(void)
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{
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interrupted = 1;
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}
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extern int PyErr_CheckSignals(void);
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static int
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checksignals_witharg(void * arg)
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{
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return PyErr_CheckSignals();
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}
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static void
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intcatcher(int sig)
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{
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extern void Py_Exit(int);
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static char message[] =
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"python: to interrupt a truly hanging Python program, interrupt once more.\n";
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switch (interrupted++) {
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case 0:
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break;
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case 1:
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#ifdef RISCOS
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fprintf(stderr, message);
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#else
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write(2, message, strlen(message));
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#endif
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break;
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case 2:
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interrupted = 0;
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Py_Exit(1);
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break;
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}
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PyOS_setsig(SIGINT, intcatcher);
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Py_AddPendingCall(checksignals_witharg, NULL);
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}
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static void (*old_siginthandler)(int) = SIG_DFL;
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void
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PyOS_InitInterrupts(void)
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{
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if ((old_siginthandler = PyOS_setsig(SIGINT, SIG_IGN)) != SIG_IGN)
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PyOS_setsig(SIGINT, intcatcher);
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}
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void
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PyOS_FiniInterrupts(void)
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{
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PyOS_setsig(SIGINT, old_siginthandler);
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}
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int
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PyOS_InterruptOccurred(void)
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{
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if (!interrupted)
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return 0;
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interrupted = 0;
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return 1;
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}
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#endif /* !OK */
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void
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PyOS_AfterFork(void)
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{
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#ifdef WITH_THREAD
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PyThread_ReInitTLS();
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PyEval_ReInitThreads();
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#endif
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}
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