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 31 #include <stdint.h> 32 33 #include <atf-c.h> 34 35 #if defined(__amd64__) || defined(__i386__) 36 extern uint32_t sse42_crc32c(uint32_t, const unsigned char *, unsigned); 37 #elif defined(__aarch64__) 38 extern uint32_t armv8_crc32c(uint32_t, const unsigned char *, unsigned); 39 #else 40 #error These tests are not supported on this platform 41 #endif 42 43 ATF_TC_WITHOUT_HEAD(crc32c_basic_correctness); 44 ATF_TC_BODY(crc32c_basic_correctness, tc) 45 { 46 const uint64_t inputs[] = { 47 0xf408c634b3a9142, 48 0x80539e8c7c352e2b, 49 0x62e9121db6e4d649, 50 0x899345850ed0a286, 51 0x2302df11b4a43b15, 52 0xe943de7b3d35d70, 53 0xdf1ff2bf41abf56b, 54 0x9bc138abae315de2, 55 0x31cc82e56234f0ff, 56 0xce63c0cd6988e847, 57 0x3e42f6b78ee352fa, 58 0xfa4085436078cfa6, 59 0x53349558bf670a4b, 60 0x2714e10e7d722c61, 61 0xc0d3261addfc6908, 62 0xd1567c3181d3a1bf, 63 }; 64 const uint32_t results[] = { 65 0x2ce33ede, 66 0xc49cc573, 67 0xb8683c96, 68 0x6918660d, 69 0xa904e522, 70 0x52dbc42c, 71 0x98863c22, 72 0x894d5d2c, 73 0xb003745d, 74 0xfc496dbd, 75 0x97d2fbb5, 76 0x3c062ef1, 77 0xcc2eff18, 78 0x6a9b09f6, 79 0x420242c1, 80 0xfd562dc3, 81 }; 82 size_t i; 83 uint32_t act; 84 85 ATF_REQUIRE(nitems(inputs) == nitems(results)); 86 87 for (i = 0; i < nitems(inputs); i++) { 88 #if defined(__amd64__) || defined(__i386__) 89 act = sse42_crc32c(~0, (const void *)&inputs[i], 90 sizeof(inputs[0])); 91 #else 92 act = armv8_crc32c(~0, (const void *)&inputs[i], 93 sizeof(inputs[0])); 94 #endif 95 ATF_REQUIRE_MSG(act == results[i], 96 "crc32c(0x%jx) = 0x%08x, got 0x%08x", (uintmax_t)inputs[i], 97 results[i], act); 98 } 99 } 100 101 ATF_TC_WITHOUT_HEAD(crc32c_alignment); 102 ATF_TC_BODY(crc32c_alignment, tc) 103 { 104 const uint64_t input = 0xf408c634b3a9142; 105 const uint32_t result = 0x2ce33ede; 106 unsigned char buf[15]; 107 size_t i; 108 uint32_t act; 109 110 111 for (i = 1; i < 8; i++) { 112 memcpy(&buf[i], &input, sizeof(input)); 113 114 #if defined(__amd64__) || defined(__i386__) 115 act = sse42_crc32c(~0, (const void *)&buf[i], sizeof(input)); 116 #else 117 act = armv8_crc32c(~0, (const void *)&buf[i], sizeof(input)); 118 #endif 119 ATF_REQUIRE_MSG(act == result, 120 "crc32c(0x%jx) = 0x%08x, got 0x%08x", (uintmax_t)input, 121 result, act); 122 } 123 } 124 125 ATF_TC_WITHOUT_HEAD(crc32c_trailing_bytes); 126 ATF_TC_BODY(crc32c_trailing_bytes, tc) 127 { 128 const unsigned char input[] = { 129 0x87, 0x54, 0x74, 0xd2, 0xb, 0x9b, 0xdd, 0xf6, 0x68, 0x37, 130 0xd4, 0x4, 0x5e, 0xa9, 0xb3 131 }; 132 const uint32_t result = 0xec638d62; 133 uint32_t act; 134 135 #if defined(__amd64__) || defined(__i386__) 136 act = sse42_crc32c(~0, input, sizeof(input)); 137 #else 138 act = armv8_crc32c(~0, input, sizeof(input)); 139 #endif 140 ATF_REQUIRE_MSG(act == result, "expected 0x%08x, got 0x%08x", result, 141 act); 142 } 143 144 ATF_TP_ADD_TCS(tp) 145 { 146 147 ATF_TP_ADD_TC(tp, crc32c_basic_correctness); 148 ATF_TP_ADD_TC(tp, crc32c_alignment); 149 ATF_TP_ADD_TC(tp, crc32c_trailing_bytes); 150 return (atf_no_error()); 151 } 152