pax_global_header00006660000000000000000000000064137432402470014520gustar00rootroot0000000000000052 comment=d971ab50f76f6cc64f16f817fa33c8562eb5e2ab crc32c-2.2/000077500000000000000000000000001374324024700124425ustar00rootroot00000000000000crc32c-2.2/.github/000077500000000000000000000000001374324024700140025ustar00rootroot00000000000000crc32c-2.2/.github/workflows/000077500000000000000000000000001374324024700160375ustar00rootroot00000000000000crc32c-2.2/.github/workflows/build_and_release.yml000066400000000000000000000035041374324024700222050ustar00rootroot00000000000000name: Build and release to PyPI # Build on every branch push, tag push, and pull request change: on: [push, pull_request] jobs: build_wheels: name: Build wheels on ${{ matrix.os }} runs-on: ${{ matrix.os }} strategy: matrix: os: [ubuntu-18.04, windows-2019, macos-10.15] steps: - uses: actions/checkout@v2 - uses: actions/setup-python@v2 name: Install Python with: python-version: '3.7' - name: Install cibuildwheel run: | python -m pip install cibuildwheel==1.6.3 - name: Install Visual C++ for Python 2.7 if: runner.os == 'Windows' run: | choco install vcpython27 -f -y - name: Build wheels run: | python -m cibuildwheel --output-dir wheelhouse env: CIBW_TEST_REQUIRES: pytest CIBW_TEST_COMMAND: "python -u {project}/run-tests.py" - uses: actions/upload-artifact@v2 with: path: ./wheelhouse/*.whl build_sdist: name: Build source distribution runs-on: ubuntu-18.04 steps: - uses: actions/checkout@v2 - uses: actions/setup-python@v2 name: Install Python with: python-version: '3.7' - name: Build sdist run: python setup.py sdist - uses: actions/upload-artifact@v2 with: path: dist/*.tar.gz upload_pypi: needs: [build_wheels, build_sdist] runs-on: ubuntu-18.04 # upload to PyPI on every tag starting with 'v' if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags/v') steps: - uses: actions/download-artifact@v2 with: name: artifact path: dist - uses: pypa/gh-action-pypi-publish@master with: user: __token__ password: ${{ secrets.pypi_password }} crc32c-2.2/.gitignore000066400000000000000000000001021374324024700144230ustar00rootroot00000000000000*.so build dist *.egg-info .project .pydevproject .settings *.pyc crc32c-2.2/.travis.yml000066400000000000000000000006331374324024700145550ustar00rootroot00000000000000# let's go! language: python # Build and test in several python versions jobs: include: - python: "2.7" - python: "3.4" - python: "3.5" - python: "3.6" - python: "3.7" - python: "3.8" - python: "3.9-dev" - python: "3.8" arch: arm64 - python: "3.8" arch: s390x before_install: - pip install pytest install: - pip install -v . script: - python run-tests.py crc32c-2.2/AUTHORS.google-crc32c000066400000000000000000000006361374324024700160470ustar00rootroot00000000000000# This is the list of Google's CRC32C authors for copyright purposes. # # This does not necessarily list everyone who has contributed code, since in # some cases, their employer may be the copyright holder. To see the full list # of contributors, see the revision history in source control. Google Inc. Fangming Fang Vadim Skipin Rodrigo Tobar crc32c-2.2/CHANGELOG.md000066400000000000000000000066401374324024700142610ustar00rootroot00000000000000# Changelog ## [2.2] * Fixed software algorithm implementation to work on big endian machines (#22). Now the algorithm works correctly, with numerical (uint32_t) values still representing the correct checksum. * Added a new ``big_endian`` attribute that indicates if the currently platform is big endian or not. * Fixed compilation issues in some ARM Linux boxes (#21). ## [2.1] * Initial hardware-based implementation on ARMv8 machines (#11). * Add hardware-based implementation on x86 32bit machines. The C code was already there, but we did not include it for this architecture. As a result, 32-bit x86 wheels should run faster now. * Deprecated the ``crc32`` function in favour of the new ``crc32c`` function, which apart from the new, better name has no other changes. * Fixed minor warning. ## [2.0.1] * Changed binary distribution generation strategy, moving from a local+Travis+AppVeyor setup to a unified script using GitHub Actions. * Fixed generation of source distribution (two C source code files were missing from the tarball). This bug was introduced in 1.6, but the source code distributions found in PyPI were not affected because the environment where they were created predates the bug, and already contained references to the two missing files. ## [2.0] * Changed package import logic (#12). Instead of failing to import if hardware support is not found, the package now automatically falls back to using the software implementation, and thus can always be imported. Old behavior can still be obtained by setting ``CRC32C_SW_MODE`` to ``none``. * Fixed cross-compilation support (#10). ## [1.7] * Fixes wrong uploads to PyPI (#8). ## [1.6] * Added new ``auto`` software mode to allow automatic selection of hardware or software backend (#5). * Fixed compilation in non-Intel platforms (#6). * Added support to compile with ``icc``. ## [1.5] * Adding software implementation of ``crc32c`` algorithm, original developed by Mark Adler (#4). Software implementation is not accessible by default in order to maintain current importing logic, and is switched on by setting ``CRC32C_SW_MODE`` to ``1``. * Changed Intel's hardware-based implementation of ``crc32c`` from our own home-brewed code to Mark Adler's. ## [1.4] * Added support to compile in Windows using MSVC. * Removing experimental read/crc/write C method. * First version with binary wheels uploaded to PyPI (#2). ## [1.3] * Added support to compile in Windows using the MinGW compiler (#1). ## [1.2] * First version of ``crc32c`` doing pre- and post-masking against ``0xffffffff``. This is thus the first version of the package that is easily usable. ## [1.1] * Correct license reference. ## [1.0] * Initial release. [1.0]: https://github.com/ICRAR/crc32c/releases/tag/v1.0 [1.1]: https://github.com/ICRAR/crc32c/releases/tag/v1.1 [1.2]: https://github.com/ICRAR/crc32c/releases/tag/v1.2 [1.3]: https://github.com/ICRAR/crc32c/releases/tag/v1.3 [1.4]: https://github.com/ICRAR/crc32c/releases/tag/v1.4 [1.5]: https://github.com/ICRAR/crc32c/releases/tag/v1.5 [1.6]: https://github.com/ICRAR/crc32c/releases/tag/v1.6 [1.7]: https://github.com/ICRAR/crc32c/releases/tag/v1.7 [2.0]: https://github.com/ICRAR/crc32c/releases/tag/v2.0 [2.0.1]: https://github.com/ICRAR/crc32c/releases/tag/v2.0.1 [2.1]: https://github.com/ICRAR/crc32c/releases/tag/v2.1 [2.2]: https://github.com/ICRAR/crc32c/releases/tag/v2.2 crc32c-2.2/LICENSE000066400000000000000000000636421374324024700134620ustar00rootroot00000000000000 GNU LESSER GENERAL PUBLIC LICENSE Version 2.1, February 1999 Copyright (C) 1991, 1999 Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. 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Other portions are under the same license from Intel: http://sourceforge.net/projects/slicing-by-8/ /*++ * * Copyright (c) 2004-2006 Intel Corporation - All Rights Reserved * * This software program is licensed subject to the BSD License, * available at http://www.opensource.org/licenses/bsd-license.html * * Abstract: The main routine * --*/ crc32c-2.2/MANIFEST.in000066400000000000000000000000561374324024700142010ustar00rootroot00000000000000include *.h include LICENSE* include AUTHORS* crc32c-2.2/README.rst000066400000000000000000000104431374324024700141330ustar00rootroot00000000000000crc32c ====== .. image:: https://github.com/ICRAR/crc32c/workflows/Build%20and%20release%20to%20PyPI/badge.svg?branch=master .. image:: https://badge.fury.io/py/crc32c.svg :target: https://badge.fury.io/py/crc32c This package implements the crc32c checksum algorithm. It automatically chooses between a hardware-based implementation (using the CRC32C SSE 4.2 instruction of Intel CPUs, and the crc32* instructions on ARMv8 CPUs), or a software-based one when no hardware support can be found. Because ``crc32c`` is in PyPI, you can install it with:: pip install crc32c Supported platforms are Linux and OSX using the gcc and clang compilers, and Windows using the Visual Studio compiler. Other compilers in Windows (MinGW for instance) might work. Binary wheels are also provided in PyPI for major platforms/architectures. Usage ----- The only method exposed by this module is ``crc32c(data, [crc])``. It computes the CRC32C checksum of ``data`` starting with an initial ``crc`` checksum, similarly to how the built-in ``binascii.crc32`` works. It can thus be used like this: .. code-block:: python print(crc32c.crc32c(b'hello world')) # 3381945770 crc = crc32c.crc32c(b'hello') print(crc32c.crc32c(b' world', crc)) # 3381945770 In older versions, the function exposed by this module was called ``crc32``. That name is still present but deprecated, and will be removed in new versions of the library. Additionally one can consult the ``hardware_based`` module-level value to check if the algorithm currently in use is software- or hardware-based. Implementation details ---------------------- By default, if your CPU doesn't have CRC32C hardware support, the package will fallback to use a software implementation of the crc32c checksum algorithm. This behavior can be changed by setting the ``CRC32C_SW_MODE`` environment variable to one of the following values: * ``auto``: same as if unset, will eventually be discontinued. * ``force``: use software implementation regardless of hardware support. * ``none``: fail to import the module with an ``ImportError`` if no hardware support is found (old 1.x default behavior). The software algorithm is based on Intel's `slice-by-8 package `_, with some adaptations done by `Evan Jones `_ and packaging provided by `Ferry Toth `_. Further adaptations were required to make the code more portable and fit for inclusion within this python package. The Intel SSE 4.2 algorithm is based on `Mark Adler's code `_, with some modifications required to make the code more portable and fit for inclusion within this python package. The ARMv8 hardware implementation is based on Google's `crc32c `_ C++ library. Copyright --------- This package is copyrighted:: ICRAR - International Centre for Radio Astronomy Research (c) UWA - The University of Western Australia, 2017 Copyright by UWA (in the framework of the ICRAR) The original slice-by-8 software algorithm is copyrighted by:: Copyright (c) 2004-2006 Intel Corporation - All Rights Reserved Further adaptations to the slice-by-8 algorithm previous to the inclusion in this package are copyrighted by:: Copyright 2008,2009,2010 Massachusetts Institute of Technology. The original Intel SSE 4.2 crc32c algorithm is copyrighted by:: Copyright (C) 2013 Mark Adler The crc32c ARMv8 hardware code is copyrighted by:: Copyright 2017 The CRC32C Authors A copy of the `AUTHORS `_ file from Google's crc32c project as it was at the time of copying the code is included in this repository. License ------- This package is licensed under `the LGPL-2.1 license `_. The original slice-by-8 software algorithm is licensed under `the 2-clause BSD licence `_. Further modifications to the slice-by-8 software algorithm are licensed under `a 3-clause BSD licence `_ The original Intel SSE 4.2 crc32c algorithm's code is licensed under a custom license embedded in the ``crc32c_adler.c`` file. The original crc32c ARMv8 hardware code is licensed under `a 3-clause BSD license `_. crc32c-2.2/_crc32c.c000066400000000000000000000122101374324024700140200ustar00rootroot00000000000000/* * This module provides crc32c checksum (http://www.rfc-editor.org/rfc/rfc3385.txt) * based on the Intel CRC32 instruction * provided in the Intel SSE4.2 instruction set * * ICRAR - International Centre for Radio Astronomy Research * (c) UWA - The University of Western Australia, 2014 * Copyright by UWA (in the framework of the ICRAR) * All rights reserved * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * */ #include #include "checksse42.h" #include "common.h" #include "crc32c.h" /* Set at module loading time */ static crc_function crc_fn; int is_big_endian; static PyObject* crc32c_crc32c(PyObject *self, PyObject *args) { Py_buffer pbin; unsigned char *bin_data = NULL; uint32_t crc = 0U, result; /* In python 3 we accept only bytes-like objects */ const char *format = #if PY_MAJOR_VERSION >= 3 "y*" #else "s*" #endif "|I:crc32"; if (!PyArg_ParseTuple(args, format, &pbin, &crc) ) return NULL; bin_data = pbin.buf; crc ^= 0xffffffff; result = crc_fn(crc, bin_data, pbin.len); result ^= 0xffffffff; PyBuffer_Release(&pbin); return PyLong_FromUnsignedLong(result); } static PyObject *crc32c_crc32(PyObject *self, PyObject *args) { if (PyErr_WarnEx(PyExc_DeprecationWarning, "crc32c.crc32 will be eventually removed, use crc32c.crc32c instead", 1) == -1) { return NULL; } return crc32c_crc32c(self, args); } /* The different values the SW mode preference can take */ enum crc32c_sw_mode { UNSPECIFIED, AUTO, FORCE, NONE }; static enum crc32c_sw_mode get_sw_mode(void) { char *sw_mode = getenv("CRC32C_SW_MODE"); if (sw_mode == NULL) { return UNSPECIFIED; } else if (!strcmp(sw_mode, "auto")) { return AUTO; } else if (!strcmp(sw_mode, "force")) { return FORCE; } else if (!strcmp(sw_mode, "none")) { return NONE; } return UNSPECIFIED; } static PyMethodDef CRC32CMethods[] = { {"crc32", crc32c_crc32, METH_VARARGS, "Calculate crc32c incrementally (deprecated)"}, {"crc32c", crc32c_crc32c, METH_VARARGS, "Calculate crc32c incrementally"}, {NULL, NULL, 0, NULL} /* Sentinel */ }; static const char *import_error_msg = "\n\n" "Hardware extensions providing a crc32c hardware instruction are not available in\n" "your processor. This package comes with a software implementation, but this\n" "support has been opted out because the CRC32C_SW_MODE environment variable is\n" "set to \"none\". CRC32C_SW_MODE can take one of the following values:\n" " * If unset: use the software implementation if no hardware support is found\n" " * 'auto': as above, but will eventually be discontinued\n" " * 'force': use software implementation regardless of hardware support.\n" " * 'none': fail if no hardware support is found (this error).\n"; /* Support for Python 2/3 */ #if PY_MAJOR_VERSION >= 3 static struct PyModuleDef moduledef = {PyModuleDef_HEAD_INIT, "crc32c", "crc32c implementation in hardware and software", -1, CRC32CMethods}; #define MOD_INIT(name) PyMODINIT_FUNC PyInit_##name(void) #define MOD_DEF(m, name, doc, methods) \ m = PyModule_Create(&moduledef); #define MOD_VAL(v) v #else #define MOD_INIT(name) PyMODINIT_FUNC init##name(void) #define MOD_DEF(m, name, doc, methods) \ m = Py_InitModule3(name, methods, doc); #define MOD_VAL(v) #endif MOD_INIT(crc32c) { PyObject *m; PyObject *hardware_based; enum crc32c_sw_mode sw_mode; const uint32_t n = 1; sw_mode = get_sw_mode(); crc_fn = NULL; if (sw_mode == FORCE) { crc_fn = _crc32c_sw_slicing_by_8; hardware_based = Py_False; } #if defined(IS_INTEL) else if (_crc32c_intel_probe()) { crc_fn = _crc32c_hw_adler; crc32c_init_hw_adler(); hardware_based = Py_True; } #elif defined(IS_ARM) && (defined(__linux__) || defined(linux)) else if (_crc32c_arm64_probe()) { crc_fn = _crc32c_hw_arm64; hardware_based = Py_True; } #endif else if (sw_mode == UNSPECIFIED || sw_mode == AUTO) { crc_fn = _crc32c_sw_slicing_by_8; hardware_based = Py_False; } else if (sw_mode == NONE) { PyErr_SetString(PyExc_ImportError, import_error_msg); return MOD_VAL(NULL); } is_big_endian = (*(const char *)(&n) == 0); MOD_DEF(m, "crc32c", "crc32c implementation in hardware and software", CRC32CMethods); if (m == NULL) { return MOD_VAL(NULL); } Py_INCREF(hardware_based); if (PyModule_AddObject(m, "hardware_based", hardware_based) < 0) { return MOD_VAL(NULL); } if (PyModule_AddIntConstant(m, "big_endian", is_big_endian) < 0) { return MOD_VAL(NULL); } return MOD_VAL(m); } crc32c-2.2/checkarm.c000066400000000000000000000024661374324024700143730ustar00rootroot00000000000000/* * Linux-specific AArch64 CRC32 instruction probing implementation * * ICRAR - International Centre for Radio Astronomy Research * (c) UWA - The University of Western Australia, 2020 * Copyright by UWA (in the framework of the ICRAR) * All rights reserved * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * */ #if defined(IS_ARM) && (defined(__linux__) || defined(linux)) #include #ifndef HWCAP_CRC32 /* see arch/arm64/include/uapi/asm/hwcap.h */ #define HWCAP_CRC32 (1 << 7) #endif int _crc32c_arm64_probe(void) { unsigned long auxval; auxval = getauxval(AT_HWCAP); return (auxval & HWCAP_CRC32) != 0; } #endif crc32c-2.2/checksse42.c000066400000000000000000000031641374324024700145500ustar00rootroot00000000000000/* * Intel SSE 4.2 instruction probing implementation * * ICRAR - International Centre for Radio Astronomy Research * (c) UWA - The University of Western Australia, 2014 * Copyright by UWA (in the framework of the ICRAR) * All rights reserved * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * */ #if defined(IS_INTEL) #if defined(_MSC_VER) #include int _crc32c_intel_probe(void) { int info[4]; __cpuid(info, 1); return (info[2] & (1 << 20)) != 0; } #elif defined(__GNUC__) #include int _crc32c_intel_probe(void) { unsigned int eax, ebx, ecx = 0, edx; __get_cpuid(1, &eax, &ebx, &ecx, &edx); return (ecx & (1 << 20)) != 0; } #else int _crc32c_intel_probe(void) { unsigned int ecx; asm ("movl $1, %%eax;" "cpuid;" "movl %%ecx, %0;" : "=r"(ecx) // outputs : // inputs : "eax", "ebx", "ecx", "edx"); // clobber return (ecx & (1 << 20)) != 0; } #endif // defined(_MSC_VER) #endif // defined(IS_INTEL)crc32c-2.2/checksse42.h000066400000000000000000000020731374324024700145530ustar00rootroot00000000000000/* * Header file for the SSE 4.2 probing implementation * * ICRAR - International Centre for Radio Astronomy Research * (c) UWA - The University of Western Australia, 2014 * Copyright by UWA (in the framework of the ICRAR) * All rights reserved * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #ifndef _CHECKSSE42_H_ #define _CHECKSSE42_H_ int _crc32c_intel_probe(void); #endif crc32c-2.2/common.h000066400000000000000000000042471374324024700141120ustar00rootroot00000000000000/* * Common macro definitions * * ICRAR - International Centre for Radio Astronomy Research * (c) UWA - The University of Western Australia, 2014 * Copyright by UWA (in the framework of the ICRAR) * All rights reserved * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * */ #ifndef _COMMON_H_ #define _COMMON_H_ /* inline support (it's not a keyword in MSVC for C code) */ #if defined(_MSC_VER) # define CRC32C_INLINE __inline #else # define CRC32C_INLINE inline #endif /* 32/64 bit detection */ #if defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) ||\ (defined(_MSC_VER) && defined(_M_AMD64)) # define CRC32C_IS_64_BITS #else # undef CRC32C_IS_64_BITS #endif /* uint64_t / uint32_t / uint16_t definitions */ #if !defined(_MSC_VER) || (MSC_VER >= 1800) # include #else # include typedef unsigned __int64 uint64_t; # if ULONG_MAX == (0xffffffffUL) typedef unsigned long uint32_t; # elif UINT_MAX == (0xffffffffUL) typedef unsigned int uint32_t; # else # error "Unsupported platform" # endif # if UINT_MAX == (0xffffUL) typedef unsigned int uint16_t; # elif USHRT_MAX == (0xffffUL) typedef unsigned short uint16_t; # else # error "Unsupported platform" # endif #endif /* size_t definition */ #include /* crc32c function signature */ typedef uint32_t (* crc_function)(uint32_t crc, unsigned const char *data, unsigned long length); /* Are we big endian? */ extern int is_big_endian; #endif // _COMMON_H_ crc32c-2.2/crc32c.h000066400000000000000000000025341374324024700136760ustar00rootroot00000000000000/* * Definition of crc32c checksum implementation * * ICRAR - International Centre for Radio Astronomy Research * (c) UWA - The University of Western Australia, 2014 * Copyright by UWA (in the framework of the ICRAR) * All rights reserved * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * */ #ifndef _CRC32C_H_ #define _CRC32C_H_ #include "common.h" void crc32c_init_hw_adler(void); uint32_t _crc32c_hw_arm64(uint32_t crc, const unsigned char* data, unsigned long length); uint32_t _crc32c_hw_adler(uint32_t crc, const unsigned char* data, unsigned long length); uint32_t _crc32c_sw_slicing_by_8(uint32_t crc, const unsigned char *data, unsigned long length); #endif crc32c-2.2/crc32c_adler.c000066400000000000000000000327431374324024700150450ustar00rootroot00000000000000/* crc32c.c -- compute CRC-32C using the Intel crc32 instruction * Copyright (C) 2013 Mark Adler * Version 1.1 1 Aug 2013 Mark Adler * * Adapted by Rodrigo Tobar for inclusion in the crc32c python package */ /* This software is provided 'as-is', without any express or implied warranty. In no event will the author be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 3. This notice may not be removed or altered from any source distribution. Mark Adler madler@alumni.caltech.edu */ /* Use hardware CRC instruction on Intel SSE 4.2 processors. This computes a CRC-32C, *not* the CRC-32 used by Ethernet and zip, gzip, etc. A software version is provided as a fall-back, as well as for speed comparisons. */ /* Version history: 1.0 10 Feb 2013 First version 1.1 1 Aug 2013 Correct comments on why three crc instructions in parallel */ /* Altered version * This version modified to fit into the benchmarking code retrieved from * http://www.evanjones.ca/crc32c.html * 1.2 20 Mar 2016 Ferry Toth - Fit into benchmarking * 1.3 07 May 2016 Ferry Toth - Applied some speed ups by putting more CRC32 in the short and long loop * - Moved crc32q into macro's and put alternative code there for 32bit operation */ #if defined(IS_INTEL) #include "common.h" /* * MSVC/icc don't have __builtin_ia32_crc32_* functions. Instead they have * the _mm_crc32_* intrinsics, which accomplish the same at the end of the day */ #if defined(_MSC_VER) || defined(__ICC) # include # define __builtin_ia32_crc32qi _mm_crc32_u8 # define __builtin_ia32_crc32hi _mm_crc32_u16 # define __builtin_ia32_crc32si _mm_crc32_u32 # define __builtin_ia32_crc32di _mm_crc32_u64 #endif /* defined(_MSC_VER) || defined(__ICC) */ /* CRC-32C (iSCSI) polynomial in reversed bit order. */ #define POLY 0x82f63b78 /* Multiply a matrix times a vector over the Galois field of two elements, GF(2). Each element is a bit in an unsigned integer. mat must have at least as many entries as the power of two for most significant one bit in vec. */ static CRC32C_INLINE uint32_t gf2_matrix_times ( uint32_t *mat, uint32_t vec ) { uint32_t sum; sum = 0; while ( vec ) { if ( vec & 1 ) sum ^= *mat; vec >>= 1; mat++; } return sum; } /* Multiply a matrix by itself over GF(2). Both mat and square must have 32 rows. */ static CRC32C_INLINE void gf2_matrix_square ( uint32_t *square, uint32_t *mat ) { int n; for ( n = 0; n < 32; n++ ) square[n] = gf2_matrix_times ( mat, mat[n] ); } /* Construct an operator to apply len zeros to a crc. len must be a power of two. If len is not a power of two, then the result is the same as for the largest power of two less than len. The result for len == 0 is the same as for len == 1. A version of this routine could be easily written for any len, but that is not needed for this application. */ static void crc32c_zeros_op ( uint32_t *even, size_t len ) { int n; uint32_t row; uint32_t odd[32]; /* odd-power-of-two zeros operator */ /* put operator for one zero bit in odd */ odd[0] = POLY; /* CRC-32C polynomial */ row = 1; for ( n = 1; n < 32; n++ ) { odd[n] = row; row <<= 1; } /* put operator for two zero bits in even */ gf2_matrix_square ( even, odd ); /* put operator for four zero bits in odd */ gf2_matrix_square ( odd, even ); /* first square will put the operator for one zero byte (eight zero bits), in even -- next square puts operator for two zero bytes in odd, and so on, until len has been rotated down to zero */ do { gf2_matrix_square ( even, odd ); len >>= 1; if ( len == 0 ) return; gf2_matrix_square ( odd, even ); len >>= 1; } while ( len ); /* answer ended up in odd -- copy to even */ for ( n = 0; n < 32; n++ ) even[n] = odd[n]; } /* Take a length and build four lookup tables for applying the zeros operator for that length, byte-by-byte on the operand. */ static void crc32c_zeros ( uint32_t zeros[][256], size_t len ) { uint32_t n; uint32_t op[32]; crc32c_zeros_op ( op, len ); for ( n = 0; n < 256; n++ ) { zeros[0][n] = gf2_matrix_times ( op, n ); zeros[1][n] = gf2_matrix_times ( op, n << 8 ); zeros[2][n] = gf2_matrix_times ( op, n << 16 ); zeros[3][n] = gf2_matrix_times ( op, n << 24 ); } } /* Apply the zeros operator table to crc. */ static CRC32C_INLINE uint32_t crc32c_shift ( uint32_t zeros[][256], uint32_t crc ) { return zeros[0][crc & 0xff] ^ zeros[1][ ( crc >> 8 ) & 0xff] ^ zeros[2][ ( crc >> 16 ) & 0xff] ^ zeros[3][crc >> 24]; } /* Block sizes for three-way parallel crc computation. LONG and SHORT must both be powers of two. The associated string constants must be set accordingly, for use in constructing the assembler instructions. */ #define LONG 8192 #define LONGx1 "8192" #define LONGx2 "16384" #define SHORT 256 #define SHORTx1 "256" #define SHORTx2 "512" /* Tables for hardware crc that shift a crc by LONG and SHORT zeros. */ static uint32_t crc32c_long[4][256]; static uint32_t crc32c_short[4][256]; /* Initialize tables for shifting crcs. */ void crc32c_init_hw_adler( void ) { crc32c_zeros ( crc32c_long, LONG ); crc32c_zeros ( crc32c_short, SHORT ); } #ifndef CRC32C_IS_64_BITS #define CRCtriplet(crc, buf, size, i) \ crc ## 0 = __builtin_ia32_crc32si(crc ## 0, *(uint32_t*) (buf + i)); \ crc ## 1 = __builtin_ia32_crc32si(crc ## 1, *(uint32_t*) (buf + i + size)); \ crc ## 2 = __builtin_ia32_crc32si(crc ## 2, *(uint32_t*) (buf + i + 2 * size)); \ crc ## 0 = __builtin_ia32_crc32si(crc ## 0, *(uint32_t*) (buf + sizeof(uint32_t) + i)); \ crc ## 1 = __builtin_ia32_crc32si(crc ## 1, *(uint32_t*) (buf + sizeof(uint32_t) + i + size)); \ crc ## 2 = __builtin_ia32_crc32si(crc ## 2, *(uint32_t*) (buf + sizeof(uint32_t) + i + 2 * size)); #else #define CRCtriplet(crc, buf, size, i) \ crc ## 0 = __builtin_ia32_crc32di(crc ## 0, *(uint64_t*) (buf + i)); \ crc ## 1 = __builtin_ia32_crc32di(crc ## 1, *(uint64_t*) (buf + i + size)); \ crc ## 2 = __builtin_ia32_crc32di(crc ## 2, *(uint64_t*) (buf + i + 2 * size)); #endif #ifndef CRC32C_IS_64_BITS #define CRCsinglet(crc, buf) \ crc = __builtin_ia32_crc32si(crc, *(uint32_t*)buf); \ crc = __builtin_ia32_crc32si(crc, *(uint32_t*)(buf + sizeof(uint32_t))); \ buf+= 2 *sizeof(uint32_t); #else #define CRCsinglet(crc, buf) crc = __builtin_ia32_crc32di(crc, *(uint64_t*)buf); buf+= sizeof(uint64_t); #endif /* Compute CRC-32C using the Intel hardware instruction. */ uint32_t _crc32c_hw_adler(uint32_t crc, const unsigned char *buf, unsigned long len) { const unsigned char *next = buf; const unsigned char *end; unsigned short count; #ifndef CRC32C_IS_64_BITS uint32_t crc0, crc1, crc2; #else uint64_t crc0, crc1, crc2; /* need to be 64 bits for crc32q */ #endif uint32_t crc32bit; crc32bit = crc; // in len > 256 compute the crc for up to seven leading bytes to bring the data pointer to an eight-byte boundary if ( len > 128 ) { unsigned char align = ( 8 - ( uintptr_t ) next ) % 8; // byte to boundary len -= align; if ( ( align % 2 ) != 0 ) crc32bit = __builtin_ia32_crc32qi ( crc32bit, *next ); next += align; switch ( align / 2 ) { case 3: crc32bit = __builtin_ia32_crc32hi ( crc32bit, * ( uint16_t* ) ( next - 6 ) ); // 6 char, remain 4 case 2: crc32bit = __builtin_ia32_crc32si ( crc32bit, * ( uint32_t* ) ( next - 4 ) ); // 4 char, remain 0 break; case 1: crc32bit = __builtin_ia32_crc32hi ( crc32bit, * ( uint16_t* ) ( next - 2 ) ); // 2 char, remain 0 case 0: break; } }; /* compute the crc on sets of LONG*3 bytes, executing three independent crc instructions, each on LONG bytes -- this is optimized for the Nehalem, Westmere, Sandy Bridge, and Ivy Bridge architectures, which have a throughput of one crc per cycle, but a latency of three cycles */ crc0 = crc32bit; while ( len >= LONG*3 ) { crc1 = 0; crc2 = 0; end = next + LONG; do { CRCtriplet ( crc, next, LONG, 0 ); CRCtriplet ( crc, next, LONG, 8 ); CRCtriplet ( crc, next, LONG, 16 ); CRCtriplet ( crc, next, LONG, 24 ); next += 32; } while ( next < end ); crc0 = crc32c_shift ( crc32c_long, (uint32_t)crc0 ) ^ crc1; crc0 = crc32c_shift ( crc32c_long, (uint32_t)crc0 ) ^ crc2; next += LONG*2; len -= LONG*3; } /* do the same thing, but now on SHORT*3 blocks for the remaining data less than a LONG*3 block */ while ( len >= SHORT*3 ) { crc1 = 0; crc2 = 0; end = next + SHORT; do { CRCtriplet ( crc, next, SHORT, 0 ); CRCtriplet ( crc, next, SHORT, 8 ); CRCtriplet ( crc, next, SHORT, 16 ); CRCtriplet ( crc, next, SHORT, 24 ); next += 32; } while ( next < end ); crc0 = crc32c_shift ( crc32c_short, (uint32_t)crc0 ) ^ crc1; crc0 = crc32c_shift ( crc32c_short, (uint32_t)crc0 ) ^ crc2; next += SHORT*2; len -= SHORT*3; } /* compute the crc on the remaining eight-byte units less than a SHORT*3 block */ // use Duff's device, a for() loop inside a switch() statement. This is Legal if ( ( count = ( len - ( len & 7 ) ) ) >= 8 ) { // needs to execute crc at least once unsigned short n; len -= count; count /= 8; // count number of crc32di n = ( count + 15 ) / 16; switch ( count % 16 ) { case 0: do { CRCsinglet ( crc0, next ); case 15: CRCsinglet ( crc0, next ); case 14: CRCsinglet ( crc0, next ); case 13: CRCsinglet ( crc0, next ); case 12: CRCsinglet ( crc0, next ); case 11: CRCsinglet ( crc0, next ); case 10: CRCsinglet ( crc0, next ); case 9: CRCsinglet ( crc0, next ); case 8: CRCsinglet ( crc0, next ); case 7: CRCsinglet ( crc0, next ); case 6: CRCsinglet ( crc0, next ); case 5: CRCsinglet ( crc0, next ); case 4: CRCsinglet ( crc0, next ); case 3: CRCsinglet ( crc0, next ); case 2: CRCsinglet ( crc0, next ); case 1: CRCsinglet ( crc0, next ); } while ( --n > 0 ); } }; /* compute the crc for up to seven trailing bytes */ crc32bit = (uint32_t)crc0; if ( ( len % 2 ) != 0 ) crc32bit = __builtin_ia32_crc32qi ( crc32bit, * ( next ) ); // 1 char, remain even next += len; switch ( len / 2 ) { case 3: crc32bit = __builtin_ia32_crc32hi ( crc32bit, * ( uint16_t* ) ( next - 6 ) ); // 2 char, remain 4 case 2: crc32bit = __builtin_ia32_crc32si ( crc32bit, * ( uint32_t* ) ( next - 4 ) ); // 4 char, remain 0 break; case 1: crc32bit = __builtin_ia32_crc32hi ( crc32bit, * ( uint16_t* ) ( next - 2 ) ); // 2 char, remain 0 break; case 0: break; } return ( uint32_t ) crc32bit; } #endif // defined(IS_INTEL)crc32c-2.2/crc32c_arm64.c000066400000000000000000000067171374324024700147110ustar00rootroot00000000000000// Copyright 2017 The CRC32C Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE.google-crc32c file. See the AUTHORS.google-crc32c file // for names of contributors. // In a separate source file to allow this accelerated CRC32C function to be // compiled with the appropriate compiler flags to enable ARM NEON CRC32C // instructions. // This implementation is based on https://github.com/google/leveldb/pull/490. // // Adjusted from https://github.com/google/crc32c to be fit for inclusion // into this python package #if defined(IS_ARM) && (defined(__linux__) || defined(linux)) #include #include #include #include #define KBYTES 1032 #define SEGMENTBYTES 256 // compute 8bytes for each segment parallelly #define CRC32C32BYTES(P, IND) \ do { \ crc1 = __crc32cd( \ crc1, *((const uint64_t *)(P) + (SEGMENTBYTES / 8) * 1 + (IND))); \ crc2 = __crc32cd( \ crc2, *((const uint64_t *)(P) + (SEGMENTBYTES / 8) * 2 + (IND))); \ crc3 = __crc32cd( \ crc3, *((const uint64_t *)(P) + (SEGMENTBYTES / 8) * 3 + (IND))); \ crc0 = __crc32cd( \ crc0, *((const uint64_t *)(P) + (SEGMENTBYTES / 8) * 0 + (IND))); \ } while (0); // compute 8*8 bytes for each segment parallelly #define CRC32C256BYTES(P, IND) \ do { \ CRC32C32BYTES((P), (IND)*8 + 0) \ CRC32C32BYTES((P), (IND)*8 + 1) \ CRC32C32BYTES((P), (IND)*8 + 2) \ CRC32C32BYTES((P), (IND)*8 + 3) \ CRC32C32BYTES((P), (IND)*8 + 4) \ CRC32C32BYTES((P), (IND)*8 + 5) \ CRC32C32BYTES((P), (IND)*8 + 6) \ CRC32C32BYTES((P), (IND)*8 + 7) \ } while (0); // compute 4*8*8 bytes for each segment parallelly #define CRC32C1024BYTES(P) \ do { \ CRC32C256BYTES((P), 0) \ CRC32C256BYTES((P), 1) \ CRC32C256BYTES((P), 2) \ CRC32C256BYTES((P), 3) \ (P) += 4 * SEGMENTBYTES; \ } while (0) uint32_t _crc32c_hw_arm64(uint32_t crc, const uint8_t *data, size_t size) { int64_t length = size; uint32_t crc0, crc1, crc2, crc3; uint64_t t0, t1, t2; // k0=CRC(x^(3*SEGMENTBYTES*8)), k1=CRC(x^(2*SEGMENTBYTES*8)), // k2=CRC(x^(SEGMENTBYTES*8)) const poly64_t k0 = 0x8d96551c, k1 = 0xbd6f81f8, k2 = 0xdcb17aa4; while (length >= KBYTES) { crc0 = crc; crc1 = 0; crc2 = 0; crc3 = 0; // Process 1024 bytes in parallel. CRC32C1024BYTES(data); // Merge the 4 partial CRC32C values. t2 = (uint64_t)vmull_p64(crc2, k2); t1 = (uint64_t)vmull_p64(crc1, k1); t0 = (uint64_t)vmull_p64(crc0, k0); crc = __crc32cd(crc3, *(uint64_t *)data); data += sizeof(uint64_t); crc ^= __crc32cd(0, t2); crc ^= __crc32cd(0, t1); crc ^= __crc32cd(0, t0); length -= KBYTES; } while (length >= 8) { crc = __crc32cd(crc, *(uint64_t *)data); data += 8; length -= 8; } if (length & 4) { crc = __crc32cw(crc, *(uint32_t *)data); data += 4; } if (length & 2) { crc = __crc32ch(crc, *(uint16_t *)data); data += 2; } if (length & 1) { crc = __crc32cb(crc, *data); } return crc; } #endif crc32c-2.2/crc32c_sw.c000066400000000000000000001005441374324024700144020ustar00rootroot00000000000000// Copyright 2008,2009,2010 Massachusetts Institute of Technology. // All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE.slice-by-8 file. // Implementations adapted from Intel's Slicing By 8 Sourceforge Project // http://sourceforge.net/projects/slicing-by-8/ /* * Copyright (c) 2004-2006 Intel Corporation - All Rights Reserved * * * This software program is licensed subject to the BSD License, * available at http://www.opensource.org/licenses/bsd-license.html. * * Abstract: * * Tables for software CRC generation */ /* Tables generated with code like the following: #define CRCPOLY 0x82f63b78 // reversed 0x1EDC6F41 #define CRCINIT 0xFFFFFFFF void init() { for (uint32_t i = 0; i <= 0xFF; i++) { uint32_t x = i; for (uint32_t j = 0; j < 8; j++) x = (x>>1) ^ (CRCPOLY & (-(int32_t)(x & 1))); g_crc_slicing[0][i] = x; } for (uint32_t i = 0; i <= 0xFF; i++) { uint32_t c = g_crc_slicing[0][i]; for (uint32_t j = 1; j < 8; j++) { c = g_crc_slicing[0][c & 0xFF] ^ (c >> 8); g_crc_slicing[j][i] = c; } } } */ #include "crc32c.h" /* * The following CRC lookup table was generated automagically * using the following model parameters: * * Generator Polynomial = ................. 0x1EDC6F41 * Generator Polynomial Length = .......... 32 bits * Reflected Bits = ....................... TRUE * Table Generation Offset = .............. 32 bits * Number of Slices = ..................... 8 slices * Slice Lengths = ........................ 8 8 8 8 8 8 8 8 * Directory Name = ....................... .\ * File Name = ............................ 8x256_tables.c */ const uint32_t crc_tableil8_o32[256] = { 0x00000000, 0xF26B8303, 0xE13B70F7, 0x1350F3F4, 0xC79A971F, 0x35F1141C, 0x26A1E7E8, 0xD4CA64EB, 0x8AD958CF, 0x78B2DBCC, 0x6BE22838, 0x9989AB3B, 0x4D43CFD0, 0xBF284CD3, 0xAC78BF27, 0x5E133C24, 0x105EC76F, 0xE235446C, 0xF165B798, 0x030E349B, 0xD7C45070, 0x25AFD373, 0x36FF2087, 0xC494A384, 0x9A879FA0, 0x68EC1CA3, 0x7BBCEF57, 0x89D76C54, 0x5D1D08BF, 0xAF768BBC, 0xBC267848, 0x4E4DFB4B, 0x20BD8EDE, 0xD2D60DDD, 0xC186FE29, 0x33ED7D2A, 0xE72719C1, 0x154C9AC2, 0x061C6936, 0xF477EA35, 0xAA64D611, 0x580F5512, 0x4B5FA6E6, 0xB93425E5, 0x6DFE410E, 0x9F95C20D, 0x8CC531F9, 0x7EAEB2FA, 0x30E349B1, 0xC288CAB2, 0xD1D83946, 0x23B3BA45, 0xF779DEAE, 0x05125DAD, 0x1642AE59, 0xE4292D5A, 0xBA3A117E, 0x4851927D, 0x5B016189, 0xA96AE28A, 0x7DA08661, 0x8FCB0562, 0x9C9BF696, 0x6EF07595, 0x417B1DBC, 0xB3109EBF, 0xA0406D4B, 0x522BEE48, 0x86E18AA3, 0x748A09A0, 0x67DAFA54, 0x95B17957, 0xCBA24573, 0x39C9C670, 0x2A993584, 0xD8F2B687, 0x0C38D26C, 0xFE53516F, 0xED03A29B, 0x1F682198, 0x5125DAD3, 0xA34E59D0, 0xB01EAA24, 0x42752927, 0x96BF4DCC, 0x64D4CECF, 0x77843D3B, 0x85EFBE38, 0xDBFC821C, 0x2997011F, 0x3AC7F2EB, 0xC8AC71E8, 0x1C661503, 0xEE0D9600, 0xFD5D65F4, 0x0F36E6F7, 0x61C69362, 0x93AD1061, 0x80FDE395, 0x72966096, 0xA65C047D, 0x5437877E, 0x4767748A, 0xB50CF789, 0xEB1FCBAD, 0x197448AE, 0x0A24BB5A, 0xF84F3859, 0x2C855CB2, 0xDEEEDFB1, 0xCDBE2C45, 0x3FD5AF46, 0x7198540D, 0x83F3D70E, 0x90A324FA, 0x62C8A7F9, 0xB602C312, 0x44694011, 0x5739B3E5, 0xA55230E6, 0xFB410CC2, 0x092A8FC1, 0x1A7A7C35, 0xE811FF36, 0x3CDB9BDD, 0xCEB018DE, 0xDDE0EB2A, 0x2F8B6829, 0x82F63B78, 0x709DB87B, 0x63CD4B8F, 0x91A6C88C, 0x456CAC67, 0xB7072F64, 0xA457DC90, 0x563C5F93, 0x082F63B7, 0xFA44E0B4, 0xE9141340, 0x1B7F9043, 0xCFB5F4A8, 0x3DDE77AB, 0x2E8E845F, 0xDCE5075C, 0x92A8FC17, 0x60C37F14, 0x73938CE0, 0x81F80FE3, 0x55326B08, 0xA759E80B, 0xB4091BFF, 0x466298FC, 0x1871A4D8, 0xEA1A27DB, 0xF94AD42F, 0x0B21572C, 0xDFEB33C7, 0x2D80B0C4, 0x3ED04330, 0xCCBBC033, 0xA24BB5A6, 0x502036A5, 0x4370C551, 0xB11B4652, 0x65D122B9, 0x97BAA1BA, 0x84EA524E, 0x7681D14D, 0x2892ED69, 0xDAF96E6A, 0xC9A99D9E, 0x3BC21E9D, 0xEF087A76, 0x1D63F975, 0x0E330A81, 0xFC588982, 0xB21572C9, 0x407EF1CA, 0x532E023E, 0xA145813D, 0x758FE5D6, 0x87E466D5, 0x94B49521, 0x66DF1622, 0x38CC2A06, 0xCAA7A905, 0xD9F75AF1, 0x2B9CD9F2, 0xFF56BD19, 0x0D3D3E1A, 0x1E6DCDEE, 0xEC064EED, 0xC38D26C4, 0x31E6A5C7, 0x22B65633, 0xD0DDD530, 0x0417B1DB, 0xF67C32D8, 0xE52CC12C, 0x1747422F, 0x49547E0B, 0xBB3FFD08, 0xA86F0EFC, 0x5A048DFF, 0x8ECEE914, 0x7CA56A17, 0x6FF599E3, 0x9D9E1AE0, 0xD3D3E1AB, 0x21B862A8, 0x32E8915C, 0xC083125F, 0x144976B4, 0xE622F5B7, 0xF5720643, 0x07198540, 0x590AB964, 0xAB613A67, 0xB831C993, 0x4A5A4A90, 0x9E902E7B, 0x6CFBAD78, 0x7FAB5E8C, 0x8DC0DD8F, 0xE330A81A, 0x115B2B19, 0x020BD8ED, 0xF0605BEE, 0x24AA3F05, 0xD6C1BC06, 0xC5914FF2, 0x37FACCF1, 0x69E9F0D5, 0x9B8273D6, 0x88D28022, 0x7AB90321, 0xAE7367CA, 0x5C18E4C9, 0x4F48173D, 0xBD23943E, 0xF36E6F75, 0x0105EC76, 0x12551F82, 0xE03E9C81, 0x34F4F86A, 0xC69F7B69, 0xD5CF889D, 0x27A40B9E, 0x79B737BA, 0x8BDCB4B9, 0x988C474D, 0x6AE7C44E, 0xBE2DA0A5, 0x4C4623A6, 0x5F16D052, 0xAD7D5351 }; /* * end of the CRC lookup table crc_tableil8_o32 */ /* * The following CRC lookup table was generated automagically * using the following model parameters: * * Generator Polynomial = ................. 0x1EDC6F41 * Generator Polynomial Length = .......... 32 bits * Reflected Bits = ....................... TRUE * Table Generation Offset = .............. 32 bits * Number of Slices = ..................... 8 slices * Slice Lengths = ........................ 8 8 8 8 8 8 8 8 * Directory Name = ....................... .\ * File Name = ............................ 8x256_tables.c */ const uint32_t crc_tableil8_o40[256] = { 0x00000000, 0x13A29877, 0x274530EE, 0x34E7A899, 0x4E8A61DC, 0x5D28F9AB, 0x69CF5132, 0x7A6DC945, 0x9D14C3B8, 0x8EB65BCF, 0xBA51F356, 0xA9F36B21, 0xD39EA264, 0xC03C3A13, 0xF4DB928A, 0xE7790AFD, 0x3FC5F181, 0x2C6769F6, 0x1880C16F, 0x0B225918, 0x714F905D, 0x62ED082A, 0x560AA0B3, 0x45A838C4, 0xA2D13239, 0xB173AA4E, 0x859402D7, 0x96369AA0, 0xEC5B53E5, 0xFFF9CB92, 0xCB1E630B, 0xD8BCFB7C, 0x7F8BE302, 0x6C297B75, 0x58CED3EC, 0x4B6C4B9B, 0x310182DE, 0x22A31AA9, 0x1644B230, 0x05E62A47, 0xE29F20BA, 0xF13DB8CD, 0xC5DA1054, 0xD6788823, 0xAC154166, 0xBFB7D911, 0x8B507188, 0x98F2E9FF, 0x404E1283, 0x53EC8AF4, 0x670B226D, 0x74A9BA1A, 0x0EC4735F, 0x1D66EB28, 0x298143B1, 0x3A23DBC6, 0xDD5AD13B, 0xCEF8494C, 0xFA1FE1D5, 0xE9BD79A2, 0x93D0B0E7, 0x80722890, 0xB4958009, 0xA737187E, 0xFF17C604, 0xECB55E73, 0xD852F6EA, 0xCBF06E9D, 0xB19DA7D8, 0xA23F3FAF, 0x96D89736, 0x857A0F41, 0x620305BC, 0x71A19DCB, 0x45463552, 0x56E4AD25, 0x2C896460, 0x3F2BFC17, 0x0BCC548E, 0x186ECCF9, 0xC0D23785, 0xD370AFF2, 0xE797076B, 0xF4359F1C, 0x8E585659, 0x9DFACE2E, 0xA91D66B7, 0xBABFFEC0, 0x5DC6F43D, 0x4E646C4A, 0x7A83C4D3, 0x69215CA4, 0x134C95E1, 0x00EE0D96, 0x3409A50F, 0x27AB3D78, 0x809C2506, 0x933EBD71, 0xA7D915E8, 0xB47B8D9F, 0xCE1644DA, 0xDDB4DCAD, 0xE9537434, 0xFAF1EC43, 0x1D88E6BE, 0x0E2A7EC9, 0x3ACDD650, 0x296F4E27, 0x53028762, 0x40A01F15, 0x7447B78C, 0x67E52FFB, 0xBF59D487, 0xACFB4CF0, 0x981CE469, 0x8BBE7C1E, 0xF1D3B55B, 0xE2712D2C, 0xD69685B5, 0xC5341DC2, 0x224D173F, 0x31EF8F48, 0x050827D1, 0x16AABFA6, 0x6CC776E3, 0x7F65EE94, 0x4B82460D, 0x5820DE7A, 0xFBC3FAF9, 0xE861628E, 0xDC86CA17, 0xCF245260, 0xB5499B25, 0xA6EB0352, 0x920CABCB, 0x81AE33BC, 0x66D73941, 0x7575A136, 0x419209AF, 0x523091D8, 0x285D589D, 0x3BFFC0EA, 0x0F186873, 0x1CBAF004, 0xC4060B78, 0xD7A4930F, 0xE3433B96, 0xF0E1A3E1, 0x8A8C6AA4, 0x992EF2D3, 0xADC95A4A, 0xBE6BC23D, 0x5912C8C0, 0x4AB050B7, 0x7E57F82E, 0x6DF56059, 0x1798A91C, 0x043A316B, 0x30DD99F2, 0x237F0185, 0x844819FB, 0x97EA818C, 0xA30D2915, 0xB0AFB162, 0xCAC27827, 0xD960E050, 0xED8748C9, 0xFE25D0BE, 0x195CDA43, 0x0AFE4234, 0x3E19EAAD, 0x2DBB72DA, 0x57D6BB9F, 0x447423E8, 0x70938B71, 0x63311306, 0xBB8DE87A, 0xA82F700D, 0x9CC8D894, 0x8F6A40E3, 0xF50789A6, 0xE6A511D1, 0xD242B948, 0xC1E0213F, 0x26992BC2, 0x353BB3B5, 0x01DC1B2C, 0x127E835B, 0x68134A1E, 0x7BB1D269, 0x4F567AF0, 0x5CF4E287, 0x04D43CFD, 0x1776A48A, 0x23910C13, 0x30339464, 0x4A5E5D21, 0x59FCC556, 0x6D1B6DCF, 0x7EB9F5B8, 0x99C0FF45, 0x8A626732, 0xBE85CFAB, 0xAD2757DC, 0xD74A9E99, 0xC4E806EE, 0xF00FAE77, 0xE3AD3600, 0x3B11CD7C, 0x28B3550B, 0x1C54FD92, 0x0FF665E5, 0x759BACA0, 0x663934D7, 0x52DE9C4E, 0x417C0439, 0xA6050EC4, 0xB5A796B3, 0x81403E2A, 0x92E2A65D, 0xE88F6F18, 0xFB2DF76F, 0xCFCA5FF6, 0xDC68C781, 0x7B5FDFFF, 0x68FD4788, 0x5C1AEF11, 0x4FB87766, 0x35D5BE23, 0x26772654, 0x12908ECD, 0x013216BA, 0xE64B1C47, 0xF5E98430, 0xC10E2CA9, 0xD2ACB4DE, 0xA8C17D9B, 0xBB63E5EC, 0x8F844D75, 0x9C26D502, 0x449A2E7E, 0x5738B609, 0x63DF1E90, 0x707D86E7, 0x0A104FA2, 0x19B2D7D5, 0x2D557F4C, 0x3EF7E73B, 0xD98EEDC6, 0xCA2C75B1, 0xFECBDD28, 0xED69455F, 0x97048C1A, 0x84A6146D, 0xB041BCF4, 0xA3E32483 }; /* * end of the CRC lookup table crc_tableil8_o40 */ /* * The following CRC lookup table was generated automagically * using the following model parameters: * * Generator Polynomial = ................. 0x1EDC6F41 * Generator Polynomial Length = .......... 32 bits * Reflected Bits = ....................... TRUE * Table Generation Offset = .............. 32 bits * Number of Slices = ..................... 8 slices * Slice Lengths = ........................ 8 8 8 8 8 8 8 8 * Directory Name = ....................... .\ * File Name = ............................ 8x256_tables.c */ const uint32_t crc_tableil8_o48[256] = { 0x00000000, 0xA541927E, 0x4F6F520D, 0xEA2EC073, 0x9EDEA41A, 0x3B9F3664, 0xD1B1F617, 0x74F06469, 0x38513EC5, 0x9D10ACBB, 0x773E6CC8, 0xD27FFEB6, 0xA68F9ADF, 0x03CE08A1, 0xE9E0C8D2, 0x4CA15AAC, 0x70A27D8A, 0xD5E3EFF4, 0x3FCD2F87, 0x9A8CBDF9, 0xEE7CD990, 0x4B3D4BEE, 0xA1138B9D, 0x045219E3, 0x48F3434F, 0xEDB2D131, 0x079C1142, 0xA2DD833C, 0xD62DE755, 0x736C752B, 0x9942B558, 0x3C032726, 0xE144FB14, 0x4405696A, 0xAE2BA919, 0x0B6A3B67, 0x7F9A5F0E, 0xDADBCD70, 0x30F50D03, 0x95B49F7D, 0xD915C5D1, 0x7C5457AF, 0x967A97DC, 0x333B05A2, 0x47CB61CB, 0xE28AF3B5, 0x08A433C6, 0xADE5A1B8, 0x91E6869E, 0x34A714E0, 0xDE89D493, 0x7BC846ED, 0x0F382284, 0xAA79B0FA, 0x40577089, 0xE516E2F7, 0xA9B7B85B, 0x0CF62A25, 0xE6D8EA56, 0x43997828, 0x37691C41, 0x92288E3F, 0x78064E4C, 0xDD47DC32, 0xC76580D9, 0x622412A7, 0x880AD2D4, 0x2D4B40AA, 0x59BB24C3, 0xFCFAB6BD, 0x16D476CE, 0xB395E4B0, 0xFF34BE1C, 0x5A752C62, 0xB05BEC11, 0x151A7E6F, 0x61EA1A06, 0xC4AB8878, 0x2E85480B, 0x8BC4DA75, 0xB7C7FD53, 0x12866F2D, 0xF8A8AF5E, 0x5DE93D20, 0x29195949, 0x8C58CB37, 0x66760B44, 0xC337993A, 0x8F96C396, 0x2AD751E8, 0xC0F9919B, 0x65B803E5, 0x1148678C, 0xB409F5F2, 0x5E273581, 0xFB66A7FF, 0x26217BCD, 0x8360E9B3, 0x694E29C0, 0xCC0FBBBE, 0xB8FFDFD7, 0x1DBE4DA9, 0xF7908DDA, 0x52D11FA4, 0x1E704508, 0xBB31D776, 0x511F1705, 0xF45E857B, 0x80AEE112, 0x25EF736C, 0xCFC1B31F, 0x6A802161, 0x56830647, 0xF3C29439, 0x19EC544A, 0xBCADC634, 0xC85DA25D, 0x6D1C3023, 0x8732F050, 0x2273622E, 0x6ED23882, 0xCB93AAFC, 0x21BD6A8F, 0x84FCF8F1, 0xF00C9C98, 0x554D0EE6, 0xBF63CE95, 0x1A225CEB, 0x8B277743, 0x2E66E53D, 0xC448254E, 0x6109B730, 0x15F9D359, 0xB0B84127, 0x5A968154, 0xFFD7132A, 0xB3764986, 0x1637DBF8, 0xFC191B8B, 0x595889F5, 0x2DA8ED9C, 0x88E97FE2, 0x62C7BF91, 0xC7862DEF, 0xFB850AC9, 0x5EC498B7, 0xB4EA58C4, 0x11ABCABA, 0x655BAED3, 0xC01A3CAD, 0x2A34FCDE, 0x8F756EA0, 0xC3D4340C, 0x6695A672, 0x8CBB6601, 0x29FAF47F, 0x5D0A9016, 0xF84B0268, 0x1265C21B, 0xB7245065, 0x6A638C57, 0xCF221E29, 0x250CDE5A, 0x804D4C24, 0xF4BD284D, 0x51FCBA33, 0xBBD27A40, 0x1E93E83E, 0x5232B292, 0xF77320EC, 0x1D5DE09F, 0xB81C72E1, 0xCCEC1688, 0x69AD84F6, 0x83834485, 0x26C2D6FB, 0x1AC1F1DD, 0xBF8063A3, 0x55AEA3D0, 0xF0EF31AE, 0x841F55C7, 0x215EC7B9, 0xCB7007CA, 0x6E3195B4, 0x2290CF18, 0x87D15D66, 0x6DFF9D15, 0xC8BE0F6B, 0xBC4E6B02, 0x190FF97C, 0xF321390F, 0x5660AB71, 0x4C42F79A, 0xE90365E4, 0x032DA597, 0xA66C37E9, 0xD29C5380, 0x77DDC1FE, 0x9DF3018D, 0x38B293F3, 0x7413C95F, 0xD1525B21, 0x3B7C9B52, 0x9E3D092C, 0xEACD6D45, 0x4F8CFF3B, 0xA5A23F48, 0x00E3AD36, 0x3CE08A10, 0x99A1186E, 0x738FD81D, 0xD6CE4A63, 0xA23E2E0A, 0x077FBC74, 0xED517C07, 0x4810EE79, 0x04B1B4D5, 0xA1F026AB, 0x4BDEE6D8, 0xEE9F74A6, 0x9A6F10CF, 0x3F2E82B1, 0xD50042C2, 0x7041D0BC, 0xAD060C8E, 0x08479EF0, 0xE2695E83, 0x4728CCFD, 0x33D8A894, 0x96993AEA, 0x7CB7FA99, 0xD9F668E7, 0x9557324B, 0x3016A035, 0xDA386046, 0x7F79F238, 0x0B899651, 0xAEC8042F, 0x44E6C45C, 0xE1A75622, 0xDDA47104, 0x78E5E37A, 0x92CB2309, 0x378AB177, 0x437AD51E, 0xE63B4760, 0x0C158713, 0xA954156D, 0xE5F54FC1, 0x40B4DDBF, 0xAA9A1DCC, 0x0FDB8FB2, 0x7B2BEBDB, 0xDE6A79A5, 0x3444B9D6, 0x91052BA8 }; /* * end of the CRC lookup table crc_tableil8_o48 */ /* * The following CRC lookup table was generated automagically * using the following model parameters: * * Generator Polynomial = ................. 0x1EDC6F41 * Generator Polynomial Length = .......... 32 bits * Reflected Bits = ....................... TRUE * Table Generation Offset = .............. 32 bits * Number of Slices = ..................... 8 slices * Slice Lengths = ........................ 8 8 8 8 8 8 8 8 * Directory Name = ....................... .\ * File Name = ............................ 8x256_tables.c */ const uint32_t crc_tableil8_o56[256] = { 0x00000000, 0xDD45AAB8, 0xBF672381, 0x62228939, 0x7B2231F3, 0xA6679B4B, 0xC4451272, 0x1900B8CA, 0xF64463E6, 0x2B01C95E, 0x49234067, 0x9466EADF, 0x8D665215, 0x5023F8AD, 0x32017194, 0xEF44DB2C, 0xE964B13D, 0x34211B85, 0x560392BC, 0x8B463804, 0x924680CE, 0x4F032A76, 0x2D21A34F, 0xF06409F7, 0x1F20D2DB, 0xC2657863, 0xA047F15A, 0x7D025BE2, 0x6402E328, 0xB9474990, 0xDB65C0A9, 0x06206A11, 0xD725148B, 0x0A60BE33, 0x6842370A, 0xB5079DB2, 0xAC072578, 0x71428FC0, 0x136006F9, 0xCE25AC41, 0x2161776D, 0xFC24DDD5, 0x9E0654EC, 0x4343FE54, 0x5A43469E, 0x8706EC26, 0xE524651F, 0x3861CFA7, 0x3E41A5B6, 0xE3040F0E, 0x81268637, 0x5C632C8F, 0x45639445, 0x98263EFD, 0xFA04B7C4, 0x27411D7C, 0xC805C650, 0x15406CE8, 0x7762E5D1, 0xAA274F69, 0xB327F7A3, 0x6E625D1B, 0x0C40D422, 0xD1057E9A, 0xABA65FE7, 0x76E3F55F, 0x14C17C66, 0xC984D6DE, 0xD0846E14, 0x0DC1C4AC, 0x6FE34D95, 0xB2A6E72D, 0x5DE23C01, 0x80A796B9, 0xE2851F80, 0x3FC0B538, 0x26C00DF2, 0xFB85A74A, 0x99A72E73, 0x44E284CB, 0x42C2EEDA, 0x9F874462, 0xFDA5CD5B, 0x20E067E3, 0x39E0DF29, 0xE4A57591, 0x8687FCA8, 0x5BC25610, 0xB4868D3C, 0x69C32784, 0x0BE1AEBD, 0xD6A40405, 0xCFA4BCCF, 0x12E11677, 0x70C39F4E, 0xAD8635F6, 0x7C834B6C, 0xA1C6E1D4, 0xC3E468ED, 0x1EA1C255, 0x07A17A9F, 0xDAE4D027, 0xB8C6591E, 0x6583F3A6, 0x8AC7288A, 0x57828232, 0x35A00B0B, 0xE8E5A1B3, 0xF1E51979, 0x2CA0B3C1, 0x4E823AF8, 0x93C79040, 0x95E7FA51, 0x48A250E9, 0x2A80D9D0, 0xF7C57368, 0xEEC5CBA2, 0x3380611A, 0x51A2E823, 0x8CE7429B, 0x63A399B7, 0xBEE6330F, 0xDCC4BA36, 0x0181108E, 0x1881A844, 0xC5C402FC, 0xA7E68BC5, 0x7AA3217D, 0x52A0C93F, 0x8FE56387, 0xEDC7EABE, 0x30824006, 0x2982F8CC, 0xF4C75274, 0x96E5DB4D, 0x4BA071F5, 0xA4E4AAD9, 0x79A10061, 0x1B838958, 0xC6C623E0, 0xDFC69B2A, 0x02833192, 0x60A1B8AB, 0xBDE41213, 0xBBC47802, 0x6681D2BA, 0x04A35B83, 0xD9E6F13B, 0xC0E649F1, 0x1DA3E349, 0x7F816A70, 0xA2C4C0C8, 0x4D801BE4, 0x90C5B15C, 0xF2E73865, 0x2FA292DD, 0x36A22A17, 0xEBE780AF, 0x89C50996, 0x5480A32E, 0x8585DDB4, 0x58C0770C, 0x3AE2FE35, 0xE7A7548D, 0xFEA7EC47, 0x23E246FF, 0x41C0CFC6, 0x9C85657E, 0x73C1BE52, 0xAE8414EA, 0xCCA69DD3, 0x11E3376B, 0x08E38FA1, 0xD5A62519, 0xB784AC20, 0x6AC10698, 0x6CE16C89, 0xB1A4C631, 0xD3864F08, 0x0EC3E5B0, 0x17C35D7A, 0xCA86F7C2, 0xA8A47EFB, 0x75E1D443, 0x9AA50F6F, 0x47E0A5D7, 0x25C22CEE, 0xF8878656, 0xE1873E9C, 0x3CC29424, 0x5EE01D1D, 0x83A5B7A5, 0xF90696D8, 0x24433C60, 0x4661B559, 0x9B241FE1, 0x8224A72B, 0x5F610D93, 0x3D4384AA, 0xE0062E12, 0x0F42F53E, 0xD2075F86, 0xB025D6BF, 0x6D607C07, 0x7460C4CD, 0xA9256E75, 0xCB07E74C, 0x16424DF4, 0x106227E5, 0xCD278D5D, 0xAF050464, 0x7240AEDC, 0x6B401616, 0xB605BCAE, 0xD4273597, 0x09629F2F, 0xE6264403, 0x3B63EEBB, 0x59416782, 0x8404CD3A, 0x9D0475F0, 0x4041DF48, 0x22635671, 0xFF26FCC9, 0x2E238253, 0xF36628EB, 0x9144A1D2, 0x4C010B6A, 0x5501B3A0, 0x88441918, 0xEA669021, 0x37233A99, 0xD867E1B5, 0x05224B0D, 0x6700C234, 0xBA45688C, 0xA345D046, 0x7E007AFE, 0x1C22F3C7, 0xC167597F, 0xC747336E, 0x1A0299D6, 0x782010EF, 0xA565BA57, 0xBC65029D, 0x6120A825, 0x0302211C, 0xDE478BA4, 0x31035088, 0xEC46FA30, 0x8E647309, 0x5321D9B1, 0x4A21617B, 0x9764CBC3, 0xF54642FA, 0x2803E842 }; /* * end of the CRC lookup table crc_tableil8_o56 */ /* * The following CRC lookup table was generated automagically * using the following model parameters: * * Generator Polynomial = ................. 0x1EDC6F41 * Generator Polynomial Length = .......... 32 bits * Reflected Bits = ....................... TRUE * Table Generation Offset = .............. 32 bits * Number of Slices = ..................... 8 slices * Slice Lengths = ........................ 8 8 8 8 8 8 8 8 * Directory Name = ....................... .\ * File Name = ............................ 8x256_tables.c */ const uint32_t crc_tableil8_o64[256] = { 0x00000000, 0x38116FAC, 0x7022DF58, 0x4833B0F4, 0xE045BEB0, 0xD854D11C, 0x906761E8, 0xA8760E44, 0xC5670B91, 0xFD76643D, 0xB545D4C9, 0x8D54BB65, 0x2522B521, 0x1D33DA8D, 0x55006A79, 0x6D1105D5, 0x8F2261D3, 0xB7330E7F, 0xFF00BE8B, 0xC711D127, 0x6F67DF63, 0x5776B0CF, 0x1F45003B, 0x27546F97, 0x4A456A42, 0x725405EE, 0x3A67B51A, 0x0276DAB6, 0xAA00D4F2, 0x9211BB5E, 0xDA220BAA, 0xE2336406, 0x1BA8B557, 0x23B9DAFB, 0x6B8A6A0F, 0x539B05A3, 0xFBED0BE7, 0xC3FC644B, 0x8BCFD4BF, 0xB3DEBB13, 0xDECFBEC6, 0xE6DED16A, 0xAEED619E, 0x96FC0E32, 0x3E8A0076, 0x069B6FDA, 0x4EA8DF2E, 0x76B9B082, 0x948AD484, 0xAC9BBB28, 0xE4A80BDC, 0xDCB96470, 0x74CF6A34, 0x4CDE0598, 0x04EDB56C, 0x3CFCDAC0, 0x51EDDF15, 0x69FCB0B9, 0x21CF004D, 0x19DE6FE1, 0xB1A861A5, 0x89B90E09, 0xC18ABEFD, 0xF99BD151, 0x37516AAE, 0x0F400502, 0x4773B5F6, 0x7F62DA5A, 0xD714D41E, 0xEF05BBB2, 0xA7360B46, 0x9F2764EA, 0xF236613F, 0xCA270E93, 0x8214BE67, 0xBA05D1CB, 0x1273DF8F, 0x2A62B023, 0x625100D7, 0x5A406F7B, 0xB8730B7D, 0x806264D1, 0xC851D425, 0xF040BB89, 0x5836B5CD, 0x6027DA61, 0x28146A95, 0x10050539, 0x7D1400EC, 0x45056F40, 0x0D36DFB4, 0x3527B018, 0x9D51BE5C, 0xA540D1F0, 0xED736104, 0xD5620EA8, 0x2CF9DFF9, 0x14E8B055, 0x5CDB00A1, 0x64CA6F0D, 0xCCBC6149, 0xF4AD0EE5, 0xBC9EBE11, 0x848FD1BD, 0xE99ED468, 0xD18FBBC4, 0x99BC0B30, 0xA1AD649C, 0x09DB6AD8, 0x31CA0574, 0x79F9B580, 0x41E8DA2C, 0xA3DBBE2A, 0x9BCAD186, 0xD3F96172, 0xEBE80EDE, 0x439E009A, 0x7B8F6F36, 0x33BCDFC2, 0x0BADB06E, 0x66BCB5BB, 0x5EADDA17, 0x169E6AE3, 0x2E8F054F, 0x86F90B0B, 0xBEE864A7, 0xF6DBD453, 0xCECABBFF, 0x6EA2D55C, 0x56B3BAF0, 0x1E800A04, 0x269165A8, 0x8EE76BEC, 0xB6F60440, 0xFEC5B4B4, 0xC6D4DB18, 0xABC5DECD, 0x93D4B161, 0xDBE70195, 0xE3F66E39, 0x4B80607D, 0x73910FD1, 0x3BA2BF25, 0x03B3D089, 0xE180B48F, 0xD991DB23, 0x91A26BD7, 0xA9B3047B, 0x01C50A3F, 0x39D46593, 0x71E7D567, 0x49F6BACB, 0x24E7BF1E, 0x1CF6D0B2, 0x54C56046, 0x6CD40FEA, 0xC4A201AE, 0xFCB36E02, 0xB480DEF6, 0x8C91B15A, 0x750A600B, 0x4D1B0FA7, 0x0528BF53, 0x3D39D0FF, 0x954FDEBB, 0xAD5EB117, 0xE56D01E3, 0xDD7C6E4F, 0xB06D6B9A, 0x887C0436, 0xC04FB4C2, 0xF85EDB6E, 0x5028D52A, 0x6839BA86, 0x200A0A72, 0x181B65DE, 0xFA2801D8, 0xC2396E74, 0x8A0ADE80, 0xB21BB12C, 0x1A6DBF68, 0x227CD0C4, 0x6A4F6030, 0x525E0F9C, 0x3F4F0A49, 0x075E65E5, 0x4F6DD511, 0x777CBABD, 0xDF0AB4F9, 0xE71BDB55, 0xAF286BA1, 0x9739040D, 0x59F3BFF2, 0x61E2D05E, 0x29D160AA, 0x11C00F06, 0xB9B60142, 0x81A76EEE, 0xC994DE1A, 0xF185B1B6, 0x9C94B463, 0xA485DBCF, 0xECB66B3B, 0xD4A70497, 0x7CD10AD3, 0x44C0657F, 0x0CF3D58B, 0x34E2BA27, 0xD6D1DE21, 0xEEC0B18D, 0xA6F30179, 0x9EE26ED5, 0x36946091, 0x0E850F3D, 0x46B6BFC9, 0x7EA7D065, 0x13B6D5B0, 0x2BA7BA1C, 0x63940AE8, 0x5B856544, 0xF3F36B00, 0xCBE204AC, 0x83D1B458, 0xBBC0DBF4, 0x425B0AA5, 0x7A4A6509, 0x3279D5FD, 0x0A68BA51, 0xA21EB415, 0x9A0FDBB9, 0xD23C6B4D, 0xEA2D04E1, 0x873C0134, 0xBF2D6E98, 0xF71EDE6C, 0xCF0FB1C0, 0x6779BF84, 0x5F68D028, 0x175B60DC, 0x2F4A0F70, 0xCD796B76, 0xF56804DA, 0xBD5BB42E, 0x854ADB82, 0x2D3CD5C6, 0x152DBA6A, 0x5D1E0A9E, 0x650F6532, 0x081E60E7, 0x300F0F4B, 0x783CBFBF, 0x402DD013, 0xE85BDE57, 0xD04AB1FB, 0x9879010F, 0xA0686EA3 }; /* * end of the CRC lookup table crc_tableil8_o64 */ /* * The following CRC lookup table was generated automagically * using the following model parameters: * * Generator Polynomial = ................. 0x1EDC6F41 * Generator Polynomial Length = .......... 32 bits * Reflected Bits = ....................... TRUE * Table Generation Offset = .............. 32 bits * Number of Slices = ..................... 8 slices * Slice Lengths = ........................ 8 8 8 8 8 8 8 8 * Directory Name = ....................... .\ * File Name = ............................ 8x256_tables.c */ const uint32_t crc_tableil8_o72[256] = { 0x00000000, 0xEF306B19, 0xDB8CA0C3, 0x34BCCBDA, 0xB2F53777, 0x5DC55C6E, 0x697997B4, 0x8649FCAD, 0x6006181F, 0x8F367306, 0xBB8AB8DC, 0x54BAD3C5, 0xD2F32F68, 0x3DC34471, 0x097F8FAB, 0xE64FE4B2, 0xC00C303E, 0x2F3C5B27, 0x1B8090FD, 0xF4B0FBE4, 0x72F90749, 0x9DC96C50, 0xA975A78A, 0x4645CC93, 0xA00A2821, 0x4F3A4338, 0x7B8688E2, 0x94B6E3FB, 0x12FF1F56, 0xFDCF744F, 0xC973BF95, 0x2643D48C, 0x85F4168D, 0x6AC47D94, 0x5E78B64E, 0xB148DD57, 0x370121FA, 0xD8314AE3, 0xEC8D8139, 0x03BDEA20, 0xE5F20E92, 0x0AC2658B, 0x3E7EAE51, 0xD14EC548, 0x570739E5, 0xB83752FC, 0x8C8B9926, 0x63BBF23F, 0x45F826B3, 0xAAC84DAA, 0x9E748670, 0x7144ED69, 0xF70D11C4, 0x183D7ADD, 0x2C81B107, 0xC3B1DA1E, 0x25FE3EAC, 0xCACE55B5, 0xFE729E6F, 0x1142F576, 0x970B09DB, 0x783B62C2, 0x4C87A918, 0xA3B7C201, 0x0E045BEB, 0xE13430F2, 0xD588FB28, 0x3AB89031, 0xBCF16C9C, 0x53C10785, 0x677DCC5F, 0x884DA746, 0x6E0243F4, 0x813228ED, 0xB58EE337, 0x5ABE882E, 0xDCF77483, 0x33C71F9A, 0x077BD440, 0xE84BBF59, 0xCE086BD5, 0x213800CC, 0x1584CB16, 0xFAB4A00F, 0x7CFD5CA2, 0x93CD37BB, 0xA771FC61, 0x48419778, 0xAE0E73CA, 0x413E18D3, 0x7582D309, 0x9AB2B810, 0x1CFB44BD, 0xF3CB2FA4, 0xC777E47E, 0x28478F67, 0x8BF04D66, 0x64C0267F, 0x507CEDA5, 0xBF4C86BC, 0x39057A11, 0xD6351108, 0xE289DAD2, 0x0DB9B1CB, 0xEBF65579, 0x04C63E60, 0x307AF5BA, 0xDF4A9EA3, 0x5903620E, 0xB6330917, 0x828FC2CD, 0x6DBFA9D4, 0x4BFC7D58, 0xA4CC1641, 0x9070DD9B, 0x7F40B682, 0xF9094A2F, 0x16392136, 0x2285EAEC, 0xCDB581F5, 0x2BFA6547, 0xC4CA0E5E, 0xF076C584, 0x1F46AE9D, 0x990F5230, 0x763F3929, 0x4283F2F3, 0xADB399EA, 0x1C08B7D6, 0xF338DCCF, 0xC7841715, 0x28B47C0C, 0xAEFD80A1, 0x41CDEBB8, 0x75712062, 0x9A414B7B, 0x7C0EAFC9, 0x933EC4D0, 0xA7820F0A, 0x48B26413, 0xCEFB98BE, 0x21CBF3A7, 0x1577387D, 0xFA475364, 0xDC0487E8, 0x3334ECF1, 0x0788272B, 0xE8B84C32, 0x6EF1B09F, 0x81C1DB86, 0xB57D105C, 0x5A4D7B45, 0xBC029FF7, 0x5332F4EE, 0x678E3F34, 0x88BE542D, 0x0EF7A880, 0xE1C7C399, 0xD57B0843, 0x3A4B635A, 0x99FCA15B, 0x76CCCA42, 0x42700198, 0xAD406A81, 0x2B09962C, 0xC439FD35, 0xF08536EF, 0x1FB55DF6, 0xF9FAB944, 0x16CAD25D, 0x22761987, 0xCD46729E, 0x4B0F8E33, 0xA43FE52A, 0x90832EF0, 0x7FB345E9, 0x59F09165, 0xB6C0FA7C, 0x827C31A6, 0x6D4C5ABF, 0xEB05A612, 0x0435CD0B, 0x308906D1, 0xDFB96DC8, 0x39F6897A, 0xD6C6E263, 0xE27A29B9, 0x0D4A42A0, 0x8B03BE0D, 0x6433D514, 0x508F1ECE, 0xBFBF75D7, 0x120CEC3D, 0xFD3C8724, 0xC9804CFE, 0x26B027E7, 0xA0F9DB4A, 0x4FC9B053, 0x7B757B89, 0x94451090, 0x720AF422, 0x9D3A9F3B, 0xA98654E1, 0x46B63FF8, 0xC0FFC355, 0x2FCFA84C, 0x1B736396, 0xF443088F, 0xD200DC03, 0x3D30B71A, 0x098C7CC0, 0xE6BC17D9, 0x60F5EB74, 0x8FC5806D, 0xBB794BB7, 0x544920AE, 0xB206C41C, 0x5D36AF05, 0x698A64DF, 0x86BA0FC6, 0x00F3F36B, 0xEFC39872, 0xDB7F53A8, 0x344F38B1, 0x97F8FAB0, 0x78C891A9, 0x4C745A73, 0xA344316A, 0x250DCDC7, 0xCA3DA6DE, 0xFE816D04, 0x11B1061D, 0xF7FEE2AF, 0x18CE89B6, 0x2C72426C, 0xC3422975, 0x450BD5D8, 0xAA3BBEC1, 0x9E87751B, 0x71B71E02, 0x57F4CA8E, 0xB8C4A197, 0x8C786A4D, 0x63480154, 0xE501FDF9, 0x0A3196E0, 0x3E8D5D3A, 0xD1BD3623, 0x37F2D291, 0xD8C2B988, 0xEC7E7252, 0x034E194B, 0x8507E5E6, 0x6A378EFF, 0x5E8B4525, 0xB1BB2E3C }; /* * end of the CRC lookup table crc_tableil8_o72 */ /* * The following CRC lookup table was generated automagically * using the following model parameters: * * Generator Polynomial = ................. 0x1EDC6F41 * Generator Polynomial Length = .......... 32 bits * Reflected Bits = ....................... TRUE * Table Generation Offset = .............. 32 bits * Number of Slices = ..................... 8 slices * Slice Lengths = ........................ 8 8 8 8 8 8 8 8 * Directory Name = ....................... .\ * File Name = ............................ 8x256_tables.c */ const uint32_t crc_tableil8_o80[256] = { 0x00000000, 0x68032CC8, 0xD0065990, 0xB8057558, 0xA5E0C5D1, 0xCDE3E919, 0x75E69C41, 0x1DE5B089, 0x4E2DFD53, 0x262ED19B, 0x9E2BA4C3, 0xF628880B, 0xEBCD3882, 0x83CE144A, 0x3BCB6112, 0x53C84DDA, 0x9C5BFAA6, 0xF458D66E, 0x4C5DA336, 0x245E8FFE, 0x39BB3F77, 0x51B813BF, 0xE9BD66E7, 0x81BE4A2F, 0xD27607F5, 0xBA752B3D, 0x02705E65, 0x6A7372AD, 0x7796C224, 0x1F95EEEC, 0xA7909BB4, 0xCF93B77C, 0x3D5B83BD, 0x5558AF75, 0xED5DDA2D, 0x855EF6E5, 0x98BB466C, 0xF0B86AA4, 0x48BD1FFC, 0x20BE3334, 0x73767EEE, 0x1B755226, 0xA370277E, 0xCB730BB6, 0xD696BB3F, 0xBE9597F7, 0x0690E2AF, 0x6E93CE67, 0xA100791B, 0xC90355D3, 0x7106208B, 0x19050C43, 0x04E0BCCA, 0x6CE39002, 0xD4E6E55A, 0xBCE5C992, 0xEF2D8448, 0x872EA880, 0x3F2BDDD8, 0x5728F110, 0x4ACD4199, 0x22CE6D51, 0x9ACB1809, 0xF2C834C1, 0x7AB7077A, 0x12B42BB2, 0xAAB15EEA, 0xC2B27222, 0xDF57C2AB, 0xB754EE63, 0x0F519B3B, 0x6752B7F3, 0x349AFA29, 0x5C99D6E1, 0xE49CA3B9, 0x8C9F8F71, 0x917A3FF8, 0xF9791330, 0x417C6668, 0x297F4AA0, 0xE6ECFDDC, 0x8EEFD114, 0x36EAA44C, 0x5EE98884, 0x430C380D, 0x2B0F14C5, 0x930A619D, 0xFB094D55, 0xA8C1008F, 0xC0C22C47, 0x78C7591F, 0x10C475D7, 0x0D21C55E, 0x6522E996, 0xDD279CCE, 0xB524B006, 0x47EC84C7, 0x2FEFA80F, 0x97EADD57, 0xFFE9F19F, 0xE20C4116, 0x8A0F6DDE, 0x320A1886, 0x5A09344E, 0x09C17994, 0x61C2555C, 0xD9C72004, 0xB1C40CCC, 0xAC21BC45, 0xC422908D, 0x7C27E5D5, 0x1424C91D, 0xDBB77E61, 0xB3B452A9, 0x0BB127F1, 0x63B20B39, 0x7E57BBB0, 0x16549778, 0xAE51E220, 0xC652CEE8, 0x959A8332, 0xFD99AFFA, 0x459CDAA2, 0x2D9FF66A, 0x307A46E3, 0x58796A2B, 0xE07C1F73, 0x887F33BB, 0xF56E0EF4, 0x9D6D223C, 0x25685764, 0x4D6B7BAC, 0x508ECB25, 0x388DE7ED, 0x808892B5, 0xE88BBE7D, 0xBB43F3A7, 0xD340DF6F, 0x6B45AA37, 0x034686FF, 0x1EA33676, 0x76A01ABE, 0xCEA56FE6, 0xA6A6432E, 0x6935F452, 0x0136D89A, 0xB933ADC2, 0xD130810A, 0xCCD53183, 0xA4D61D4B, 0x1CD36813, 0x74D044DB, 0x27180901, 0x4F1B25C9, 0xF71E5091, 0x9F1D7C59, 0x82F8CCD0, 0xEAFBE018, 0x52FE9540, 0x3AFDB988, 0xC8358D49, 0xA036A181, 0x1833D4D9, 0x7030F811, 0x6DD54898, 0x05D66450, 0xBDD31108, 0xD5D03DC0, 0x8618701A, 0xEE1B5CD2, 0x561E298A, 0x3E1D0542, 0x23F8B5CB, 0x4BFB9903, 0xF3FEEC5B, 0x9BFDC093, 0x546E77EF, 0x3C6D5B27, 0x84682E7F, 0xEC6B02B7, 0xF18EB23E, 0x998D9EF6, 0x2188EBAE, 0x498BC766, 0x1A438ABC, 0x7240A674, 0xCA45D32C, 0xA246FFE4, 0xBFA34F6D, 0xD7A063A5, 0x6FA516FD, 0x07A63A35, 0x8FD9098E, 0xE7DA2546, 0x5FDF501E, 0x37DC7CD6, 0x2A39CC5F, 0x423AE097, 0xFA3F95CF, 0x923CB907, 0xC1F4F4DD, 0xA9F7D815, 0x11F2AD4D, 0x79F18185, 0x6414310C, 0x0C171DC4, 0xB412689C, 0xDC114454, 0x1382F328, 0x7B81DFE0, 0xC384AAB8, 0xAB878670, 0xB66236F9, 0xDE611A31, 0x66646F69, 0x0E6743A1, 0x5DAF0E7B, 0x35AC22B3, 0x8DA957EB, 0xE5AA7B23, 0xF84FCBAA, 0x904CE762, 0x2849923A, 0x404ABEF2, 0xB2828A33, 0xDA81A6FB, 0x6284D3A3, 0x0A87FF6B, 0x17624FE2, 0x7F61632A, 0xC7641672, 0xAF673ABA, 0xFCAF7760, 0x94AC5BA8, 0x2CA92EF0, 0x44AA0238, 0x594FB2B1, 0x314C9E79, 0x8949EB21, 0xE14AC7E9, 0x2ED97095, 0x46DA5C5D, 0xFEDF2905, 0x96DC05CD, 0x8B39B544, 0xE33A998C, 0x5B3FECD4, 0x333CC01C, 0x60F48DC6, 0x08F7A10E, 0xB0F2D456, 0xD8F1F89E, 0xC5144817, 0xAD1764DF, 0x15121187, 0x7D113D4F }; /* * end of the CRC lookup table crc_tableil8_o80 */ /* * The following CRC lookup table was generated automagically * using the following model parameters: * * Generator Polynomial = ................. 0x1EDC6F41 * Generator Polynomial Length = .......... 32 bits * Reflected Bits = ....................... TRUE * Table Generation Offset = .............. 32 bits * Number of Slices = ..................... 8 slices * Slice Lengths = ........................ 8 8 8 8 8 8 8 8 * Directory Name = ....................... .\ * File Name = ............................ 8x256_tables.c */ const uint32_t crc_tableil8_o88[256] = { 0x00000000, 0x493C7D27, 0x9278FA4E, 0xDB448769, 0x211D826D, 0x6821FF4A, 0xB3657823, 0xFA590504, 0x423B04DA, 0x0B0779FD, 0xD043FE94, 0x997F83B3, 0x632686B7, 0x2A1AFB90, 0xF15E7CF9, 0xB86201DE, 0x847609B4, 0xCD4A7493, 0x160EF3FA, 0x5F328EDD, 0xA56B8BD9, 0xEC57F6FE, 0x37137197, 0x7E2F0CB0, 0xC64D0D6E, 0x8F717049, 0x5435F720, 0x1D098A07, 0xE7508F03, 0xAE6CF224, 0x7528754D, 0x3C14086A, 0x0D006599, 0x443C18BE, 0x9F789FD7, 0xD644E2F0, 0x2C1DE7F4, 0x65219AD3, 0xBE651DBA, 0xF759609D, 0x4F3B6143, 0x06071C64, 0xDD439B0D, 0x947FE62A, 0x6E26E32E, 0x271A9E09, 0xFC5E1960, 0xB5626447, 0x89766C2D, 0xC04A110A, 0x1B0E9663, 0x5232EB44, 0xA86BEE40, 0xE1579367, 0x3A13140E, 0x732F6929, 0xCB4D68F7, 0x827115D0, 0x593592B9, 0x1009EF9E, 0xEA50EA9A, 0xA36C97BD, 0x782810D4, 0x31146DF3, 0x1A00CB32, 0x533CB615, 0x8878317C, 0xC1444C5B, 0x3B1D495F, 0x72213478, 0xA965B311, 0xE059CE36, 0x583BCFE8, 0x1107B2CF, 0xCA4335A6, 0x837F4881, 0x79264D85, 0x301A30A2, 0xEB5EB7CB, 0xA262CAEC, 0x9E76C286, 0xD74ABFA1, 0x0C0E38C8, 0x453245EF, 0xBF6B40EB, 0xF6573DCC, 0x2D13BAA5, 0x642FC782, 0xDC4DC65C, 0x9571BB7B, 0x4E353C12, 0x07094135, 0xFD504431, 0xB46C3916, 0x6F28BE7F, 0x2614C358, 0x1700AEAB, 0x5E3CD38C, 0x857854E5, 0xCC4429C2, 0x361D2CC6, 0x7F2151E1, 0xA465D688, 0xED59ABAF, 0x553BAA71, 0x1C07D756, 0xC743503F, 0x8E7F2D18, 0x7426281C, 0x3D1A553B, 0xE65ED252, 0xAF62AF75, 0x9376A71F, 0xDA4ADA38, 0x010E5D51, 0x48322076, 0xB26B2572, 0xFB575855, 0x2013DF3C, 0x692FA21B, 0xD14DA3C5, 0x9871DEE2, 0x4335598B, 0x0A0924AC, 0xF05021A8, 0xB96C5C8F, 0x6228DBE6, 0x2B14A6C1, 0x34019664, 0x7D3DEB43, 0xA6796C2A, 0xEF45110D, 0x151C1409, 0x5C20692E, 0x8764EE47, 0xCE589360, 0x763A92BE, 0x3F06EF99, 0xE44268F0, 0xAD7E15D7, 0x572710D3, 0x1E1B6DF4, 0xC55FEA9D, 0x8C6397BA, 0xB0779FD0, 0xF94BE2F7, 0x220F659E, 0x6B3318B9, 0x916A1DBD, 0xD856609A, 0x0312E7F3, 0x4A2E9AD4, 0xF24C9B0A, 0xBB70E62D, 0x60346144, 0x29081C63, 0xD3511967, 0x9A6D6440, 0x4129E329, 0x08159E0E, 0x3901F3FD, 0x703D8EDA, 0xAB7909B3, 0xE2457494, 0x181C7190, 0x51200CB7, 0x8A648BDE, 0xC358F6F9, 0x7B3AF727, 0x32068A00, 0xE9420D69, 0xA07E704E, 0x5A27754A, 0x131B086D, 0xC85F8F04, 0x8163F223, 0xBD77FA49, 0xF44B876E, 0x2F0F0007, 0x66337D20, 0x9C6A7824, 0xD5560503, 0x0E12826A, 0x472EFF4D, 0xFF4CFE93, 0xB67083B4, 0x6D3404DD, 0x240879FA, 0xDE517CFE, 0x976D01D9, 0x4C2986B0, 0x0515FB97, 0x2E015D56, 0x673D2071, 0xBC79A718, 0xF545DA3F, 0x0F1CDF3B, 0x4620A21C, 0x9D642575, 0xD4585852, 0x6C3A598C, 0x250624AB, 0xFE42A3C2, 0xB77EDEE5, 0x4D27DBE1, 0x041BA6C6, 0xDF5F21AF, 0x96635C88, 0xAA7754E2, 0xE34B29C5, 0x380FAEAC, 0x7133D38B, 0x8B6AD68F, 0xC256ABA8, 0x19122CC1, 0x502E51E6, 0xE84C5038, 0xA1702D1F, 0x7A34AA76, 0x3308D751, 0xC951D255, 0x806DAF72, 0x5B29281B, 0x1215553C, 0x230138CF, 0x6A3D45E8, 0xB179C281, 0xF845BFA6, 0x021CBAA2, 0x4B20C785, 0x906440EC, 0xD9583DCB, 0x613A3C15, 0x28064132, 0xF342C65B, 0xBA7EBB7C, 0x4027BE78, 0x091BC35F, 0xD25F4436, 0x9B633911, 0xA777317B, 0xEE4B4C5C, 0x350FCB35, 0x7C33B612, 0x866AB316, 0xCF56CE31, 0x14124958, 0x5D2E347F, 0xE54C35A1, 0xAC704886, 0x7734CFEF, 0x3E08B2C8, 0xC451B7CC, 0x8D6DCAEB, 0x56294D82, 0x1F1530A5 }; /* * end of the CRC lookup table crc_tableil8_o88 */ uint32_t _crc32c_sw_slicing_by_8(uint32_t crc, unsigned const char* data, unsigned long length) { const char* p_buf = (const char*) data; size_t initial_bytes = (sizeof(uint32_t) - (intptr_t)p_buf) & (sizeof(uint32_t) - 1); size_t li; size_t running_length; size_t end_bytes; uint32_t term1; uint32_t term2; // Handle leading misaligned bytes if (length < initial_bytes) { initial_bytes = length; } for (li = 0; li < initial_bytes; li++) { crc = crc_tableil8_o32[(crc ^ *p_buf++) & 0x000000FF] ^ (crc >> 8); } length -= initial_bytes; running_length = length & ~(sizeof(uint64_t) - 1); end_bytes = length - running_length; if (is_big_endian) { for (li = 0; li < running_length/8; li++) { crc ^= (*p_buf++); crc ^= (*p_buf++) << 8; crc ^= (*p_buf++) << 16; crc ^= (*p_buf++) << 24; term1 = crc_tableil8_o88[crc & 0x000000FF] ^ crc_tableil8_o80[(crc >> 8) & 0x000000FF]; term2 = crc >> 16; crc = term1 ^ crc_tableil8_o72[term2 & 0x000000FF] ^ crc_tableil8_o64[(term2 >> 8) & 0x000000FF]; crc ^= crc_tableil8_o56[*p_buf++]; crc ^= crc_tableil8_o48[*p_buf++]; crc ^= crc_tableil8_o40[*p_buf++]; crc ^= crc_tableil8_o32[*p_buf++]; } } else { for (li = 0; li < running_length/8; li++) { crc ^= *(uint32_t*) p_buf; p_buf += 4; term1 = crc_tableil8_o88[crc & 0x000000FF] ^ crc_tableil8_o80[(crc >> 8) & 0x000000FF]; term2 = crc >> 16; crc = term1 ^ crc_tableil8_o72[term2 & 0x000000FF] ^ crc_tableil8_o64[(term2 >> 8) & 0x000000FF]; term1 = crc_tableil8_o56[(*(uint32_t *)p_buf) & 0x000000FF] ^ crc_tableil8_o48[((*(uint32_t *)p_buf) >> 8) & 0x000000FF]; term2 = (*(uint32_t *)p_buf) >> 16; crc = crc ^ term1 ^ crc_tableil8_o40[term2 & 0x000000FF] ^ crc_tableil8_o32[(term2 >> 8) & 0x000000FF]; p_buf += 4; } } for (li = 0; li < end_bytes; li++) { crc = crc_tableil8_o32[(crc ^ *p_buf++) & 0x000000FF] ^ (crc >> 8); } return crc; }crc32c-2.2/run-tests.py000066400000000000000000000014421374324024700147610ustar00rootroot00000000000000import os import subprocess as sp import sys SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__)) def run(cmd): print(" ".join(cmd)) sp.check_call(cmd) def run_tests(): run( [ sys.executable, "-c", "import crc32c; print('Is big endian? ', crc32c.big_endian)", ] ) run([sys.executable, "-mpytest", os.path.join(SCRIPT_DIR, "test")]) run( [ sys.executable, "-c", "import crc32c; import time; x = b' ' * int(1e9); n = 10; s = time.time(); [crc32c.crc32c(x) for _ in range(n)]; print('Ran at %.3f [GB/s]' % (n/(time.time() - s),))", ] ) def main(): run_tests() os.environ["CRC32C_SW_MODE"] = "force" run_tests() if __name__ == "__main__": main() crc32c-2.2/setup.py000066400000000000000000000100141374324024700141500ustar00rootroot00000000000000# # ICRAR - International Centre for Radio Astronomy Research # (c) UWA - The University of Western Australia, 2014 # Copyright by UWA (in the framework of the ICRAR) # All rights reserved # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2.1 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, # MA 02111-1307 USA # import glob import platform import distutils.ccompiler from setuptools import setup, Extension from setuptools.command.build_ext import build_ext crcmod_ext = Extension('crc32c', define_macros=[('NDEBUG', None)], depends=glob.glob('*.h'), language='c', sources=['_crc32c.c', 'checkarm.c', 'checksse42.c', 'crc32c_adler.c', 'crc32c_arm64.c', 'crc32c_sw.c'], include_dirs=['.']) def get_extra_compile_args(is_intel, is_arm): # msvc is treated specially; otherwise we assume it's a unix compiler comp = distutils.ccompiler.get_default_compiler() if comp == 'msvc': return ['/O2'] elif is_intel: return ['-O3', '-msse4.2', '-mpclmul'] elif is_arm: return ['-O3', '-march=armv8-a+crc+crypto'] else: return ['-O3'] class _build_ext(build_ext): """Custom build_ext command that includes extra compilation arguments""" user_options = build_ext.user_options + [ ('platform=', None, 'The target platform name')] def initialize_options(self): build_ext.initialize_options(self) self.platform = platform.machine() def run(self): assert(len(self.distribution.ext_modules) == 1) platform = self.platform.lower() is_intel = platform in ['x86_64', 'amd64', 'i386', 'i686'] is_arm = platform in ['aarch64_be', 'aarch64', 'armv8b', 'armv8l'] distutils.log.info("platform: %s, is_intel: %d, is_arm: %d", platform, is_intel, is_arm) self.distribution.ext_modules[0].extra_compile_args = get_extra_compile_args(is_intel, is_arm) if is_intel: self.distribution.ext_modules[0].define_macros += [('IS_INTEL', None)] elif is_arm: self.distribution.ext_modules[0].define_macros += [('IS_ARM', None)] build_ext.run(self) classifiers = [ # There's no more specific classifier for LGPLv2.1+ "License :: OSI Approved :: GNU Lesser General Public License v2 or later (LGPLv2+)", "Operating System :: OS Independent", "Programming Language :: C", "Programming Language :: Python :: 2.7", "Programming Language :: Python :: 3.2", "Programming Language :: Python :: 3.3", "Programming Language :: Python :: 3.4", "Programming Language :: Python :: 3.5", "Programming Language :: Python :: 3.6", "Programming Language :: Python :: 3.7", "Programming Language :: Python :: 3.8", "Programming Language :: Python :: 3.9", ] with open('README.rst', 'rt') as f: long_description = f.read() setup(name='crc32c', author='The ICRAR DIA Team', url='https://github.com/ICRAR/crc32c', author_email='rtobar@icrar.org', version='2.2', license="LGPLv2.1+", description=('A python package implementing the crc32c algorithm' 'in hardware and software'), long_description=long_description, long_description_content_type='text/x-rst', classifiers=classifiers, ext_modules=[crcmod_ext], cmdclass = {'build_ext': _build_ext}, test_suite="test") crc32c-2.2/test/000077500000000000000000000000001374324024700134215ustar00rootroot00000000000000crc32c-2.2/test/__init__.py000066400000000000000000000000001374324024700155200ustar00rootroot00000000000000crc32c-2.2/test/test_crc32c.py000066400000000000000000000117071374324024700161170ustar00rootroot00000000000000# # ICRAR - International Centre for Radio Astronomy Research # (c) UWA - The University of Western Australia, 2018 # Copyright by UWA (in the framework of the ICRAR) # All rights reserved # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2.1 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, # MA 02111-1307 USA # import os import struct import sys import unittest import warnings try: import crc32c sw_mode = os.environ.get('CRC32C_SW_MODE') if sw_mode == 'none' and not crc32c.hardware_based: raise RuntimeError('"none" should force hardware support') elif sw_mode == 'force' and crc32c.hardware_based: raise RuntimeError('"force" should force software support') except ImportError: crc32c = None def ulonglong_as_bytes(x): return struct.pack('