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Diffstat (limited to 'tests/fuzz/csmith.h')
-rw-r--r-- | tests/fuzz/csmith.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/tests/fuzz/csmith.h b/tests/fuzz/csmith.h new file mode 100644 index 00000000..f1334a37 --- /dev/null +++ b/tests/fuzz/csmith.h @@ -0,0 +1,130 @@ +/* -*- mode: C -*- + * + * Copyright (c) 2007-2010 The University of Utah + * All rights reserved. + * + * This file is part of `csmith', a random generator of C programs. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef RANDOM_RUNTIME_H +#define RANDOM_RUNTIME_H + +#ifdef CSMITH_MINIMAL +#include "csmith_minimal.h" +#else + +/*****************************************************************************/ + +#include <string.h> + +#define __STDC_LIMIT_MACROS +#include "random_inc.h" + +static uint32_t crc32_tab[256]; +static uint32_t crc32_context = 0xFFFFFFFFUL; + +static void +crc32_gentab (void) +{ + uint32_t crc; + const uint32_t poly = 0xEDB88320UL; + int i, j; + + for (i = 0; i < 256; i++) { + crc = i; + for (j = 8; j > 0; j--) { + if (crc & 1) { + crc = (crc >> 1) ^ poly; + } else { + crc >>= 1; + } + } + crc32_tab[i] = crc; + } +} + +static void +crc32_byte (uint8_t b) { + crc32_context = + ((crc32_context >> 8) & 0x00FFFFFF) ^ + crc32_tab[(crc32_context ^ b) & 0xFF]; +} + +#if defined(__SPLAT__) || defined (__COMPCERT__) || defined(NO_LONGLONG) +static void +crc32_8bytes (uint32_t val) +{ + crc32_byte ((val>>0) & 0xff); + crc32_byte ((val>>8) & 0xff); + crc32_byte ((val>>16) & 0xff); + crc32_byte ((val>>24) & 0xff); +} + +static void +transparent_crc (uint32_t val, char* vname, int flag) +{ + crc32_8bytes(val); + if (flag) { + printf("...checksum after hashing %s : %X\n", vname, crc32_context ^ 0xFFFFFFFFU); + } +} +#else +static void +crc32_8bytes (uint64_t val) +{ + crc32_byte ((val>>0) & 0xff); + crc32_byte ((val>>8) & 0xff); + crc32_byte ((val>>16) & 0xff); + crc32_byte ((val>>24) & 0xff); + crc32_byte ((val>>32) & 0xff); + crc32_byte ((val>>40) & 0xff); + crc32_byte ((val>>48) & 0xff); + crc32_byte ((val>>56) & 0xff); +} + +static void +transparent_crc (uint64_t val, char* vname, int flag) +{ + crc32_8bytes(val); + if (flag) { + printf("...checksum after hashing %s : %lX\n", vname, crc32_context ^ 0xFFFFFFFFUL); + } +} +#endif + +/*****************************************************************************/ + +#endif + +#endif /* RANDOM_RUNTIME_H */ + +/* + * Local Variables: + * c-basic-offset: 4 + * tab-width: 4 + * End: + */ + +/* End of file. */ |