mirror of
https://github.com/jart/cosmopolitan.git
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f684e348d4
- Document sigaction() - Simplify New Technology fork() code - Testing and many bug fixes for mprotect() - Distribute Intel Xed ILD in the amalgamation - Turn Xed enums into defines to avoid DWARF bloat - Improve polyfilling of SA_SIGINFO on BSDs and fix bugs - setpgid(getpid(), getpid()) on Windows will ignore CTRL-C - Work around issues relating to NT mappings being executable - Permit automatic executable stack override via `ape_stack_pf`
81 lines
3.4 KiB
C
81 lines
3.4 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2021 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#define PY_SSIZE_T_CLEAN
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#include "third_party/python/Include/import.h"
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#include "third_party/python/Include/longobject.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/pymacro.h"
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#include "third_party/python/Include/yoink.h"
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#include "third_party/xed/x86.h"
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/* clang-format off */
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PYTHON_PROVIDE("xed");
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PYTHON_PROVIDE("xed.ild");
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PyDoc_STRVAR(xed_doc, "Xed Module\n\
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\n\
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This module exposes low-level utilities for x86 encoding.");
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PyDoc_STRVAR(ild_doc,
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"ild($module, bytes)\n\
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--\n\n\
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Decodes byte-length of first machine instruction in byte sequence.\n\
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\n\
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This function makes it possible to tokenize raw x86 binary instructions.\n\
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Return value is negative on error, where -1 is defined as buffer being\n\
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too short, and lower numbers represent other errors.");
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static PyObject *
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xed_ild(PyObject *self, PyObject *args)
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{
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int e;
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Py_ssize_t n;
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const char *p;
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struct XedDecodedInst xedd;
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if (!PyArg_ParseTuple(args, "y#:ild", &p, &n)) return 0;
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xed_decoded_inst_zero_set_mode(&xedd, XED_MACHINE_MODE_LONG_64);
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e = xed_instruction_length_decode(&xedd, p, n);
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return PyLong_FromUnsignedLong(e ? -e : xedd.length);
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}
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static PyMethodDef xed_methods[] = {
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{"ild", xed_ild, METH_VARARGS, ild_doc},
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{0},
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};
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static struct PyModuleDef xedmodule = {
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PyModuleDef_HEAD_INIT,
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"xed",
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xed_doc,
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-1,
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xed_methods,
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};
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PyMODINIT_FUNC
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PyInit_xed(void)
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{
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return PyModule_Create(&xedmodule);
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}
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_Section(".rodata.pytab.1") const struct _inittab _PyImport_Inittab_xed = {
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"xed",
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PyInit_xed,
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};
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