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https://github.com/jart/cosmopolitan.git
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559b024e1d
We can now link even smaller Python binaries. For example, the hello.com program in the Python build directory is a compiled linked executable of hello.py which just prints hello world. Using decentralized sections, we can make that binary 1.9mb in size (noting that python.com is 6.3 megs!) This works for nontrivial programs too. For example, say we want an APE binary that's equivalent to python.com -m http.server. Our makefile now builds such a binary using the new launcher and it's only 3.2mb in size since Python sources get turned into ELF objects, which tell our linker that we need things like native hashing algorithm code.
143 lines
5 KiB
C
143 lines
5 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Python 3 │
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│ https://docs.python.org/3/license.html │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/bits/bits.h"
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#include "libc/bits/safemacros.internal.h"
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#include "libc/calls/calls.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/log/check.h"
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#include "libc/log/log.h"
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#include "libc/mem/mem.h"
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#include "libc/nexgen32e/rdtsc.h"
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#include "libc/runtime/gc.internal.h"
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#include "libc/runtime/runtime.h"
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#include "libc/runtime/symbols.internal.h"
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#include "libc/stdio/stdio.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/fileno.h"
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#include "libc/sysv/consts/sig.h"
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#include "libc/unicode/locale.h"
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#include "libc/x/x.h"
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#include "libc/zip.h"
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#include "third_party/linenoise/linenoise.h"
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#include "third_party/python/Include/abstract.h"
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#include "third_party/python/Include/ceval.h"
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#include "third_party/python/Include/dictobject.h"
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#include "third_party/python/Include/fileutils.h"
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#include "third_party/python/Include/funcobject.h"
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#include "third_party/python/Include/import.h"
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#include "third_party/python/Include/listobject.h"
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#include "third_party/python/Include/modsupport.h"
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#include "third_party/python/Include/moduleobject.h"
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#include "third_party/python/Include/object.h"
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#include "third_party/python/Include/pydebug.h"
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#include "third_party/python/Include/pyerrors.h"
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#include "third_party/python/Include/pylifecycle.h"
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#include "third_party/python/Include/pymem.h"
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#include "third_party/python/Include/pyport.h"
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#include "third_party/python/Include/pythonrun.h"
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#include "third_party/python/Include/sysmodule.h"
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#include "third_party/python/Include/unicodeobject.h"
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#include "third_party/python/Include/yoink.h"
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/* clang-format off */
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#define _L(x) L##x
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#define L(x) _L(x)
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PYTHON_YOINK(LAUNCH);
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PYTHON_YOINK("_bootlocale");
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PYTHON_YOINK("_locale");
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PYTHON_YOINK("encodings.aliases");
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PYTHON_YOINK("encodings.latin_1");
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PYTHON_YOINK("encodings.utf_8");
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PYTHON_YOINK("launchpy");
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const struct _frozen *PyImport_FrozenModules = _PyImport_FrozenModules;
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struct _inittab *PyImport_Inittab = _PyImport_Inittab;
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static int LaunchModule(wchar_t *modname)
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{
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PyObject *module, *runpy, *runmodule, *runargs, *result;
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runpy = PyImport_ImportModule("launchpy");
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if (runpy == NULL) {
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fprintf(stderr, "Could not import launchpy module\n");
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PyErr_Print();
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return -1;
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}
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runmodule = PyObject_GetAttrString(runpy, "run_module_as_main");
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if (runmodule == NULL) {
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fprintf(stderr, "Could not access launchpy.run_module_as_main\n");
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PyErr_Print();
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Py_DECREF(runpy);
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return -1;
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}
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module = PyUnicode_FromWideChar(modname, wcslen(modname));
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if (module == NULL) {
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fprintf(stderr, "Could not convert module name to unicode\n");
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PyErr_Print();
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Py_DECREF(runpy);
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Py_DECREF(runmodule);
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return -1;
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}
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runargs = Py_BuildValue("(O)", module);
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if (runargs == NULL) {
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fprintf(stderr,
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"Could not create arguments for runpy._run_module_as_main\n");
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PyErr_Print();
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Py_DECREF(runpy);
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Py_DECREF(runmodule);
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Py_DECREF(module);
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return -1;
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}
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result = PyObject_Call(runmodule, runargs, NULL);
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if (result == NULL) {
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PyErr_Print();
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}
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Py_DECREF(runpy);
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Py_DECREF(runmodule);
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Py_DECREF(module);
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Py_DECREF(runargs);
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if (result == NULL) {
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return -1;
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}
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Py_DECREF(result);
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return 0;
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}
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int
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main(int argc, char **argv)
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{
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int i, res;
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char *oldloc;
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wchar_t **argv_copy;
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wchar_t **argv_copy2;
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_PyMem_SetupAllocators("malloc");
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argv_copy = gc(malloc(sizeof(wchar_t*) * (argc+1)));
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argv_copy2 = gc(malloc(sizeof(wchar_t*) * (argc+1)));
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oldloc = _PyMem_RawStrdup(setlocale(LC_ALL, NULL));
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setlocale(LC_ALL, "");
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for (i = 0; i < argc; i++) {
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argv_copy2[i] = argv_copy[i] = gc(utf8toutf32(argv[i], -1, 0));
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}
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argv_copy2[argc] = argv_copy[argc] = NULL;
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setlocale(LC_ALL, oldloc);
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PyMem_RawFree(oldloc);
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_PyRandom_Init();
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Py_FrozenFlag++;
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Py_NoSiteFlag++;
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/* Py_VerboseFlag++; */
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Py_NoUserSiteDirectory++;
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Py_IgnoreEnvironmentFlag++;
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Py_DontWriteBytecodeFlag++;
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Py_Initialize();
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Py_LimitedPath();
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PySys_SetArgvEx(argc, argv_copy, 0);
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res = LaunchModule(L(LAUNCH)) != 0;
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_PyMem_SetupAllocators("malloc");
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return res;
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}
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