1 /* 2 * Copyright (c) 2017 Conrad Meyer <cem@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include <sys/param.h> 30 #include <sys/gsb_crc32.h> 31 32 #include <stdint.h> 33 34 #include <atf-c.h> 35 36 #if !defined(__amd64__) && !defined(__i386__) && !defined(__aarch64__) 37 #error These tests are not supported on this platform 38 #endif 39 40 ATF_TC_WITHOUT_HEAD(crc32c_basic_correctness); 41 ATF_TC_BODY(crc32c_basic_correctness, tc) 42 { 43 const uint64_t inputs[] = { 44 0xf408c634b3a9142, 45 0x80539e8c7c352e2b, 46 0x62e9121db6e4d649, 47 0x899345850ed0a286, 48 0x2302df11b4a43b15, 49 0xe943de7b3d35d70, 50 0xdf1ff2bf41abf56b, 51 0x9bc138abae315de2, 52 0x31cc82e56234f0ff, 53 0xce63c0cd6988e847, 54 0x3e42f6b78ee352fa, 55 0xfa4085436078cfa6, 56 0x53349558bf670a4b, 57 0x2714e10e7d722c61, 58 0xc0d3261addfc6908, 59 0xd1567c3181d3a1bf, 60 }; 61 const uint32_t results[] = { 62 0x2ce33ede, 63 0xc49cc573, 64 0xb8683c96, 65 0x6918660d, 66 0xa904e522, 67 0x52dbc42c, 68 0x98863c22, 69 0x894d5d2c, 70 0xb003745d, 71 0xfc496dbd, 72 0x97d2fbb5, 73 0x3c062ef1, 74 0xcc2eff18, 75 0x6a9b09f6, 76 0x420242c1, 77 0xfd562dc3, 78 }; 79 size_t i; 80 uint32_t act; 81 82 ATF_REQUIRE(nitems(inputs) == nitems(results)); 83 84 for (i = 0; i < nitems(inputs); i++) { 85 #if defined(__amd64__) || defined(__i386__) 86 act = sse42_crc32c(~0, (const void *)&inputs[i], 87 sizeof(inputs[0])); 88 #else 89 act = armv8_crc32c(~0, (const void *)&inputs[i], 90 sizeof(inputs[0])); 91 #endif 92 ATF_REQUIRE_MSG(act == results[i], 93 "crc32c(0x%jx) = 0x%08x, got 0x%08x", (uintmax_t)inputs[i], 94 results[i], act); 95 } 96 } 97 98 ATF_TC_WITHOUT_HEAD(crc32c_alignment); 99 ATF_TC_BODY(crc32c_alignment, tc) 100 { 101 const uint64_t input = 0xf408c634b3a9142; 102 const uint32_t result = 0x2ce33ede; 103 unsigned char buf[15]; 104 size_t i; 105 uint32_t act; 106 107 108 for (i = 1; i < 8; i++) { 109 memcpy(&buf[i], &input, sizeof(input)); 110 111 #if defined(__amd64__) || defined(__i386__) 112 act = sse42_crc32c(~0, (const void *)&buf[i], sizeof(input)); 113 #else 114 act = armv8_crc32c(~0, (const void *)&buf[i], sizeof(input)); 115 #endif 116 ATF_REQUIRE_MSG(act == result, 117 "crc32c(0x%jx) = 0x%08x, got 0x%08x", (uintmax_t)input, 118 result, act); 119 } 120 } 121 122 ATF_TC_WITHOUT_HEAD(crc32c_trailing_bytes); 123 ATF_TC_BODY(crc32c_trailing_bytes, tc) 124 { 125 const unsigned char input[] = { 126 0x87, 0x54, 0x74, 0xd2, 0xb, 0x9b, 0xdd, 0xf6, 0x68, 0x37, 127 0xd4, 0x4, 0x5e, 0xa9, 0xb3 128 }; 129 const uint32_t result = 0xec638d62; 130 uint32_t act; 131 132 #if defined(__amd64__) || defined(__i386__) 133 act = sse42_crc32c(~0, input, sizeof(input)); 134 #else 135 act = armv8_crc32c(~0, input, sizeof(input)); 136 #endif 137 ATF_REQUIRE_MSG(act == result, "expected 0x%08x, got 0x%08x", result, 138 act); 139 } 140 141 ATF_TP_ADD_TCS(tp) 142 { 143 144 ATF_TP_ADD_TC(tp, crc32c_basic_correctness); 145 ATF_TP_ADD_TC(tp, crc32c_alignment); 146 ATF_TP_ADD_TC(tp, crc32c_trailing_bytes); 147 return (atf_no_error()); 148 } 149